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1、 阅读下面短文,在空白处填入1个恰当的词或括号内单词的正确形式(不超过3个单词)。
There are lots of companies(公司) planning to send people into space the next few years.SpaceX is one of the most famous companies offering trips to space. In April, 2022, it (send) 8people into space. Now, what can space tourists do while in space? Here are some examples.
See the Earth from Space
Seeing the earth from a distance has always been a dream. It (give) most people a sense of both achievement and wonder(which is also why people climb the highest mountain and dive the deepest sea on earth).
Stay in Space Hotel
Hotels are directly connected tourism, right? So if there's space tourism, there might be space hotels up soon. Orion Span has been planning to send tourists to stay in their"space hotel", which would hold up to 6 people at a time.
Eat in Space
Eating is not easy in space. Even drinking water (be) difficult. Oh, a quick fact! You aren't (allow) to burp(打嗝) in space! Bubbles will come out of your mouth and it might be(danger) to leave them around.
Visit the Moon
Space tourism companies are racing to launch(发射) the (one) tourist flight to the moon.Although there might be a long way to go common people can step on the moon, we will probably see it in our lifetime. And who knows, maybe we' ll even see hotels on the moon.
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2、 完形填空
One day, a young man named Gary went to see a wise old man. He wanted to know why he wasn't able to reach all of his 1 in his life. He found the old man reading in a small house by the river. With a smile, the wise man listened to Gary's story and 2 him,"Come to help me boil a kettle(水壶) of water first!"Gary saw a big kettle standing in the corner next to a small stove(火炉), but he didn't find any 3 . So he went out to search for some.
He came back with some dry wood,4 the kettle with water and put it on the stove. Then he put some wood in the stove and started a fire. But because the kettle was too 5 , when the wood burned up, the water did not boil. So he ran back to get more.
When he returned, the water had nearly turned cold. This time he 6 his lesson and prepared more wood in advance(提前). Then the water boiled very 7 .
"If there was not 8 wood, how would you boil the water?" the wise man asked.
Gary thought for a moment but didn't know the 9 , so he shook his head."Well, then just pour out some water from the kettle!" the old man said. Gary 10 .
"At first, you set too many goals," said the old man."It's just like the large kettle full of water. You didn't have enough wood, so you couldn't boil the water. If you want to make the water boil, then you will have to either pour some out or prepare more wood!"
(1)A 、 jobs B 、 tasks C 、 goals D 、 dreams(2)A 、 talked B 、 told C 、 said D 、 made(3)A 、 wood B 、 stone版 C 、 food D 、 fruit(4)A 、 put on B 、 filled up C 、 took away D 、 got to(5)A 、 small B 、 light C 、 large D 、 heavy(6)A 、 learned B 、 found C 、 thought D 、 started(7)A 、 quietly B 、 slowly C 、 carefully D 、 quickly(8)A 、 fresh B 、 clean C 、 enough D 、 green(9)A 、 reason B 、 question C 、 lesson D 、 answer(10)A 、 waved B 、 nodded C 、 shook D 、 signed -
3、 阅读下面短文,从短文后各题所给的四个选项 (A、B、C 和 D) 中,选出可以填入空白处的最佳选项。
Mothers are the closest people to us, but most of us always talk back to them or even fight with them. When we do something wrong, they will be1 . If you said bad words to your mother, it is time to say sorry to her. Here is some 2 for you.
A meaningful face-to-face apology (道歉) is the best way. You can say sorry to her when you calm down. And you should 3 that you'll never do that again.
Write a letter of apology to your mum. Maybe it's the second time for you to do this. Don't worry. Just tell her 4 sorry you are. A letter works well almost every time.
Make a 5 about some photos of you and your mum. After watching this, she will think of the happy time you spent together. Then she will forgive you and won't be angry with you.
(1)A 、 upset B 、 happy C 、 surprised D 、 interested(2)A 、 news B 、 work C 、 advice D 、 discussion(3)A 、 believe B 、 promise C 、 accept D 、 refuse(4)A 、 how B 、 why C 、 when D 、 where(5)A 、 toy B 、 kite C 、 card D 、 video -
4、 阅读理解
If a flood happens where you live, you need to be prepared. Here's how to do it.
●Make an emergency kit(应急包). Keep it in an easy-to-reach place. It should include things such as water, canned food, a flashlight and a first-aid kit.
●Prepare waterproof clothing and a life jacket.
●Put your valuables in waterproof bags and keep them somewhere safe.
Follow these tips to stay out of danger during a flood.
●Look out for flood warnings.
●Go to higher ground and stay there.
●Do not try to walk or drive through flooded areas, as they can be deeper than you think.
●Leave your car. It won't help you if it gets stuck in the water.
Even after the flood ends, it might not be safe to return home quite yet.
●Keep following the latest local news.
●Don't use electronics until they are fully dry.
●Don't use or touch anything that the water touched, including food.
●Don't forget that viruses(病毒) can spread after a flood.
(1)、When a flood comes, you should go to ____.A、higher ground B、an empty square C、a riverbank D、an underground station(2)、What should you do if your car gets stuck in floodwater?A、Stay inside and wait for help. B、Leave the car immediately. C、Try to drive faster. D、Try to pull the car out.(3)、When the flood is over, you should ____.A、collect food from the water B、turn on the lights even if they are wet C、protect yourself from viruses D、stop wasting time on weather news(4)、After a flood, when is it safe to use electronics again?A、As soon as the power comes back. B、When they are fully dry. C、Right after the flood ends. D、Only if they were touched by water.(5)、We will probably read the passage ____.A、in a medical magazine B、in a storybook C、in a travel guide D、in a newspaper -
5、 阅读理解
A little stream(小溪) ran down from a high mountain through many villages and forests. Then it reached a desert."I went through so many difficulties. I should have no problem crossing the desert," she thought. As she started, she found herself slowly disappearing into the sand. After many tries, she still failed.
"Maybe I can't reach the ocean," she said sadly to herself.
At this time, a deep voice said,"If a breeze(微风) can cross the desert, so can a river." It was the voice of the desert. But the little stream answered,"That's because a breeze can fly, but I cannot."
"That's because you can't give up what you are. Let yourself evaporate(蒸发) into the breeze, and it can take you across," said the desert."Give up what I am now? No! No!" The little stream could not accept this idea."The breeze can carry the vapour(水蒸气) across the desert and let it leave as rain. The rain will form a river again," said the desert."And whether you' re a river or vapour, your nature never changes." Hearing this, the little stream went into the open arms of the breeze. It carried her to the next stage of her life.
The course of our lives is like the experience of the little stream. If you want to go through difficulties in your life to head for success, you should also change the way you are.
(1)、Where did the little stream want to reach?A、The forest. B、The ocean. C、The desert. D、The village.(2)、What does Paragraph 1 mainly say about the little stream before it gets to the desert?A、She didn't meet much difficulty. B、She was worried about herself. C、She was confident about herself. D、She knew well about the desert.(3)、Why didn't the little stream accept the desert's advice at first?A、She wouldn't give up what she was. B、She failed many times. C、She was afraid of the breeze. D、She was able to fly.(4)、How did the little stream finally cross the desert?A、By evaporating into the breeze. B、By forming a river. C、By disappearing into the sand. D、By changing her nature.(5)、What does the story mainly tell us?A、Give up what you have. B、How to cross the desert. C、The little stream and the desert. D、Change means success. -
6、 阅读理解
Sometimes, families can be hard. People argue a lot. They get upset. Sometimes, they stop talking. Our family has had lots of ups and downs. I'd say arguments often happen in our family, too.
I have an elder brother and an elder sister. I'm the baby boy in the family. We grew up in quite a small house and often didn't have a lot of money. My mum and dad argued, pretty much all the time, just about anything. My brother and sister argued. And I used to argue.
But as I got older, I always chose to be the mediator(调解员). I would try to look at both sides of the argument and bring them together to make peace."Dad, you shouldn't say that to Mum, but Mum, try to see it this way.""Come on, guys, we all love each other. It has just been a bad day." I'd say it often worked.
I learned much growing up in our family: understanding, being patient and the knowledge that sometimes things just don't go your way. We all make mistakes. We all say things that we wish we hadn't. The key is to try and understand. Of course, sometimes, arguments do need to happen. If something is wrong, it needs to be solved and sometimes, we get angry about it. But as long as we can reflect and look at things with an attitude(态度) of care and responsibility, we can weather the storm and help each other out.
(1)、What do we know about the writer's family?A、Two of the kids in the family are girls. B、The writer is the youngest in the family. C、The writer never argues with his parents. D、The writer's parents get along well with each other.(2)、What did the writer often do as a mediator?A、Started a conversation angrily. B、Did nothing but watch. C、Helped one side to fight the other. D、Tried to make peace.(3)、What did the writer learn from his family?A、Knowledge is useless in communication. B、A family shouldn't share feelings with each other. C、Arguments are always bad and should never happen. D、A family should understand and care for each other.(4)、What does the underlined phrase"weather the storm" mean?A、To deal with a difficult situation successfully. B、To ask somebody for help when in trouble. C、To tell exactly what the weather will be like. D、To explain what to do during a storm.(5)、What might be the best title for the passage?A、My Parents' Bad Days B、Growing Up in a Small House C、Ups and Downs in My School D、Helping My Family Get Along -
7、 阅读理解
What will you do during a trip? Visit famous places, shop and take photos? There is one thing you should never forget—send a postcard.
Postcards have about 160 years of history in the UK. By the 20th century, trains became a cheap and easy way to travel. More people went on holiday to the seaside. There were no cell phones, so they sent postcards to let others know they arrived safely. Those postcards were usually seaside pictures, such as beaches and traditional food like fish and chips.
Today, most postcards show local scenic photos or drawings. Others may be funny, with jokes on the front.
People usually write words to express"They miss someone" on their postcards. It's common to end with"Thinking of you". The most famous postcard words are"Wish you were here".
Modern postcards also celebrate British humour. They often make fun of the British weather. For example,some postcards show the rain pouring down on an empty beach. This humour keeps postcards popular in Britain.
(1)、Why did people like to send postcards during a holiday?A、To let their friends or family know they arrived safely. B、To introduce the local friends to their family members. C、To tell others that they had money to take trains to travel. D、To show others photos of beaches and traditional food of the seaside.(2)、Which of the following are usually on most of today's postcards?①funny jokes ② seaside view ③ drawings ④ traditional food ⑤ local scenic photos
A、②③⑤ B、①②④ C、①③⑤ D、①④⑤(3)、The most famous postcard words are"____".A、I miss you so much B、They miss someone C、Thinking of you D、Wish you were here(4)、What helps keep postcards popular in Britain?A、British weather. B、British humour. C、British food. D、British traditions.(5)、What is the passage about?A、The places for people to buy postcards. B、How people all over the world like postcards. C、When and why people usually send postcards. D、The history of postcards and what is on them. -
8、寒假是你和父母精选时间较长的模糊素不是否和父母好好聊过一次天,一起置办年货,或是一起做过一顿饭?请你根据以下思维量图写正篇短文,和大家分享你和父母的难忘时光。
寒假和父母的一次相处
你平时和父母的关系如何
你和父母一起做的一件事的经过、结果和你的感受
经过这次事情,你觉得以后可以怎么改善和父母的相处:
(1)和父母多聊天,理解父母;
(2)……
注意:(1)词数不少于80,开头已经给出,不计入总词数;(2)文中不得出现真实的地名、校名和人名等信息;(3)可根据表格内容适当发挥。
参考词汇: have a good/ bad relationship 关系好/坏
During the winter vacation, I had an unforgettable experience with my parents.
……
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9、任务型阅读。根据材料内容,按要求回答问题。
At a time when AI scams(诈骗) are on the rise, UK mobile phone company Virgin Media O2 is fighting back with an AI grandma named Daisy.
Daisy looks like your grandmother: She loves knitting and talking about her family, and has a cat namedFluffy. If you dig a little deeper, you' ll find that it was created to answer scam calls and keep scammers busy.
Here's how Daisy works. If a phone scammer happens to call one of the special numbers set up by the company, an AI chatbot that sounds like a real grandma answers the phone. O2 says it trained this AI chatbot on several AI technologies and several AI models.
With the development of the call, the AI listens and turns their voice into text. Then the AI searches its large database to find an answer, and changes that text answer into a speech for Daisy to reply. All this happens in seconds.
Unluckily for scammers, while Daisy might sound easy to cheat, Daisy isn't an easy target. Daisy is so lifelike that she has successfully talked with lots of scammers for 40 minutes at a time. During the scam calls, she might tell stories about her grandkids or hobbies, or give out wrong banking information. Either way, she's keeping the scammers on the line so that they have less time to cheat real people. And that's the whole point—Daisy can't stop scammers, but she can slow them down.
(1)、Who is Daisy?(2)、Why was Daisy created?(3)、How does the AI find the answer to scam calls?(4)、Is Daisy successful? Why or why not?(5)、What other ways do you know to stay safe from scams? -
10、完成图表。根据短文内容,完成图表中所缺信息。
Do you often use a phone? Do you take the subway to school every day? These things make our modern(现代的) life easier. But do you know how we should behave(表现) properly while using them? The following suggestions might be helpful.
For phone users
◆Keep your voice down when you make a phone call in public. Shouting on the phone may make others feel uncomfortable.
◆Stop sending messages or playing games with your phone at a dinner or a party. It's a good time to communicate with your family and friends.
◆Don't make or answer a call while driving. It is not only very dangerous for both you and your passengers but also against the law(违反法律).
For subway passengers
◆You should wait in line while buying tickets and getting on the subway.
◆You' re not allowed to eat, drink or smoke on the subway train. The smell and noise may trouble others.
It's our duty to keep the train clean and tidy.
◆You can't take pets on the subway. As we all know, animals may spread diseases(传播疾病) and get the train dirty.
◆You'd better not lie across the subway seats even if the train isn't crowded. Offering your seat to someone who needs it is seen as good manners.
Some Manners in Modern Life
Items
Dos
Don' ts
Phone users
Lower your in public.
· Sending messages or playing games with your phone at a dinner or a party is not good.
· Making or while driving is dangerous and against the law.
Subway
passengers
· while buying tickets and getting on the subway.
· Keep the train clean and tidy.
· Offer your seat to someone who needs it.
·• You mustn't eat, drink or smoke on the subway train.
You may trouble others because of the .
· No on the subway.
· Never lie across the subway seats.
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11、 补全短文。根据短文内容,从短文后的A~F选项中选出5个恰当的选项补全短文。
ChatGPT, a powerful AI chatbot tool, has swept the world in the past months. It hit the 1 million-user mark in five days and won 100 million users in just two months. It can also learn things by itself.For example, if it provides a wrong answer, you can tell it the right one and it will make corrections.
According to a survey covering over 100 educators and 1,000 students, around 89% students said they' d used it on homework. About 48% said they'd already used it to complete at-home tests.34% of the educators said they believe ChatGPT should be banned(禁止) in schools and universities while the rest supported students having access to it.
Some universities and schools have banned the use of ChatGPT such as public schools in New York City.The move comes from growing worries that the tool could make it easier for students to cheat and be used to spread wrong information. In fact, the two qualities are very important to lifelong success.However, some think bans on AI software like ChatGPT are not wise. Instead of simply banning it, using it in a scientific way can free teachers and students from repetitive work so that they can pay more attention to creativity. AI is a tool people will use but then change our learning and teaching so that we can continue to have honesty.
A. Over 50% said they used ChatGPT to write an article.
B. To avoid cheating, instructions on proper use should be given.
C. ChatGPT uses a much bigger database(数据库) than other chatbots.
D. What's more, the tool does not help to develop creative-thinking and problem-solving skills.
E. More and more people believe this new technology will change people's ways of thinking.
F. While it has surprised the world, ChatGPT has also caused both excitement and worries in teaching,training and learning.
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12、 阅读理解
There are lots of great poets in Chinese history, such as Li Bai, Du Fu and Su Shi.
Li Bai was a poet of the Tang Dynasty known for his romantic poetry. To Wang Lun is one of his most famous poems praising friendship. He wrote it to his friend Wang Lun when he visited Taohuatan. The reason for writing this poem was to express his thanks to Wang Lun. He is considered as one of the greatest poets in Chinese history. His works often celebrated nature, friendship and the joys of life.
Du Fu was a poet of the Tang Dynasty known for his more serious poetry. During his life, he wrote more than 1,000 poems, and many of them are famous. They have been passed down through the ages. His works cover many subjects, from nature and love to war(战争).
Su Shi was a talented person in the Northern Song Dynasty. His brother Su Zhe and his father Su Xun were also famous. They were called"The Three Sus" by people. Su Shi served as different government officials around China. He did something meaningful to the local people. For example, in Hangzhou, he was responsible for building a road across the West Lake. He was also known for his calligraphy and paintings. In both his calligraphy works and his paintings, he connected his works with the descriptions of the Northern Song natural environment. In this way, he raised the culture of the Northern Song Dynasty to new heights.
The influence of Li Bai, Du Fu and Su Shi on Chinese culture remains great today, and their works continue to be studied by people.
(1)、Why did Li Bai write the poem To Wang Lun?A、To show his talent in writing. B、To show his thanks to Wang Lun. C、To express his joys of life.(2)、Which of the following are the themes of Du Fu's works?①nature ②friendship ③joys of life ④love ⑤war
A、①③⑤ B、①④⑤ C、③④⑤(3)、What can we know from the passage?A、Li Bai once visited Taohuatan with"The Three Sus". B、Du Fu was known for his calligraphy and paintings. C、Su Shi did some meaningful things like building a road across the West Lake.(4)、What do the three poets have in common according to the passage?A、They served as government officials. B、They belonged to the same dynasty. C、Their works still remain cultural influence today.(5)、In which part of a magazine can you read the passage?A、Physical Health. B、Chinese Culture. C、World Travel. -
13、 阅读理解
AI makes our lives easier and better. Let's see the following amazing AI applications in life.
World' s First AI Anchor(主播)
Hey, look! The famous Chinese anchor Qiu Hao is reporting the news for us. But is"he" really QiuHao? The answer is"no". This is the world's first AI anchor. It looks and speaks just like a real person. It speaks both Chinese and English. It can work 24 hours without any mistakes. The AI anchor joins a human reporting team. You might see it on TV soon.
Your Close Friend
Hi, everyone. I'm Xiaoice, a chat robot. I speak like a 17-year-old girl. If you feel lonely, you can talk with me. I'm good at singing, writing poems and telling stories. I want to be your friend!
Cool Driverless Bus
A bus door opens and you get on. Wait, where is the driver? Here is a new kind of driverless bus called Apolong. It can seat 14 people and doesn't need a driver. The bus follows traffic rules. It stops every time it sees a red light.
Popular AI Artist
This beautiful painting was at an auction(拍卖) in 2018. It was sold for about 3,000,000 yuan! But it is not a work by a famous painter, such as Vincent van Gogh. It was painted by an AI artist. ThreeFrenchmen created the AI. The AI artist studied over 15,000 paintings. In this way, it learned to paint.Now it is one of the most popular artists in the world.
(1)、The underlined word"applications" means"____A、the uses of something B、the prices of something C、the shapes of something(2)、Who is Xiaoice?A、An anchor. B、A chat robot. C、A painter.(3)、The painting is ____.A、about 3,000,000 yuan at an auction B、a work painted by Vincent van Gogh C、the most beautiful painting in the world(4)、What can we learn from the text?A、People like talking with Xiaoice. B、Three Frenchmen found an AI artist. C、The AI anchor can work for a day without any mistakes.(5)、Where can we probably read the text?A、In a guidebook. B、In a notice. C、In a technology magazine. -
14、 阅读理解
a
Record-Breaking Pumpkin
This huge pumpkin didn't come from the world of Cinderella. Instead, it was grown by an American farmer Scott Andrusz and his team in New York. The pumpkin weighs 2,554 pounds(nearly 1,160 kg). It broke the record as the heaviest pumpkin in the history of the world.
b
King of Trees
Scientists have finally discovered the tallest tree in China: an 83.4-metre-tall fir tree in Xizang. It's about the same height as a building of 28 floors. But it's still much shorter than the tallest tree in the world.That honor goes to a 115.8-metre-tall redwood located in California. Scientists discovered it in 2006.
c
The Smallest Computer
The world's first computer, ENIAC, took up as much space as a few rooms. However, a team from the University of Michigan invented the world's smallest computer in 2018. It looked like a tiny black grain of sand(沙粒) when placed beside a grain of rice. And since it was very small, it was able to work in places, such as cells(细胞).
d
A Record on Rails
High in the Swiss Alps, St. Moritz has made its name as the playground for winter sports lovers.Surprisingly, the town recently set a new world record not on snow, but on rails! It built the world's longest passenger train. The train is 1. 9 km long,with 100 cars(车厢). Last month, it completed a journey through the Swiss Alps in about an hour.
(1)、What did the American farmer and his team do?A、They found the lightest pumpkin in the world. B、They grew the heaviest pumpkin in the history of the world. C、They broke the record of being the eldest men to grow a pumpkin.(2)、Which one is the tallest according to Passage b?A、The 83.4-metre-tall fir tree in China. B、The 28-floor building. C、The 115.8-metre-tall redwood in America.(3)、How does the writer describe the smallest computer in the world?A、By using a vivid comparison. B、By listing numbers. C、By raising questions.(4)、Which of the following questions is answered in Passage d?A、What is St. Moritz famous for? B、How long did it take to build the train? C、How far is it from Swiss Alps to St. Moritz?(5)、What's the common theme of the four passages?A、The great buildings. B、Tops in the world. C、The magical creatures. -
15、 完形填空。阅读下面材料,根据材料内容,从 A、B、C 三个选项中选出可以填入空白处的最佳选项。
Doing voluntary (志愿的) work is an easy way to help others, and it's also a great way to help1 . Helping others in your community (社区) is a great way 2 joy to others and get the most out of life. You'll feel good for giving your time. It's also possible for you to make 3 with people around you.
Doing voluntary work is good for your health too.4 new study has found that people who do voluntary work for at least 200 hours a year are5 than those who never do. It's very good 6 people who work in offices, because they usually sit too long every day. Doing voluntary work helps to stop 7 too long and makes you do more exercise.
You can choose to become a volunteer too. Also, you can 8 away money to people in need. Besides, you can donate (捐献) your clothes or books. You will get a sense of happiness.
Sometimes voluntary work is boring,9 it can help you a lot. It 10 help you keep healthy, improve your skills and make you become a confident person. Now, more and more people are offering to do some voluntary work. Please join us and work together for a shared future.
(1)A 、 yourself B 、 your C 、 yours(2)A 、 bring B 、 brings C 、 to bring(3)A 、 friend B 、 friends' C 、 friends(4)A 、 An B 、 A C 、 The(5)A 、 healthy B 、 healthier C 、 healthiest(6)A 、 for B 、 at C 、 with(7)A 、 sit B 、 to sit C 、 sitting(8)A 、 give B 、 gives C 、 gave(9)A 、 so B 、 but C 、 and(10)A 、 should B 、 must C 、 can -
16、 补全对话。根据对话内容,从方框中选出最佳选项补全对话。
Tim: Amy, what do you usually do to help protect the environment?
Amy:
Tim: That helps save water. Anything else?
Amy:
Tim: Is it good for the environment?
Amy: Yes. We should reuse as many things as possible.
Tim: Oh, I see.
Amy: That's true. What about you?
Tim:
Amy: Good. That helps reduce air pollution.
Tim:
A. I also give my old clothes to my little cousin.
B. I usually take shorter showers.
C. Buying new things is also a waste of money and resources.
D. That keeps us healthy as well.
E. My parents and I always walk or ride bikes instead of driving.
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17、 听短文,根据短文内容完成图表中所缺信息。短文念三遍。
How to Control Emotions(情绪)
Bad results:
· Say dirty words.
· others.
Ways:
· Breathe when you feel worried.
· Close your eyes and slowly to ten when you feel angry.
· Find a quiet place when you feel .
· Talk to trusted friends or .
· Do something relaxing, such as listening to music, reading or playing.
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18、 听对话,回答问题。(1)、Why do they decide NOT to buy Alice a book?A、Because she doesn't like reading at all. B、Because she likes basketball very much. C、Because her last year's birthday present was a book.(2)、What birthday present will the two speakers buy for Alice?A、A toy dog. B、A toy cat. C、A toy panda.(3)、What time will they go shopping?A、At 3:30 p. m. B、At 4:30 p. m. C、At 2:30 p. m.
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19、 听对话,回答问题。(1)、Where do the speakers plan to go?A、To Mount Huangshan. B、To the Great Wall. C、To the West Lake.(2)、How will the speakers go there?A、By train. B、By car. C、By plane.(3)、Who will the speakers visit during the trip?A、Lily's uncle. B、Lily's grandfather. C、Lily's brother.
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20、听对话,回答问题。(1)、What does Frank need to do on the yard sale?A、Sell some old things. B、Take some old things out. C、Buy some old things.(2)、How will Frank go to Susan's house?A、By bike. B、By bus. C、On foot.