相关试卷

Lightning usually destroys (破坏) trees it hits. But scientists have found an amazing tree. It not only lives through lightning strikes (击中) but actually grows better because of them!

For years, scientists thought lightning was only bad for trees. But as they explored places like the Amazon rainforest, they started to think there could be trees that fight against lightning. It wasn't until about 100 years ago that such "super trees" were discovered. Now, they know of a tree that uses lightning's power to kill nearby trees and get more sunlight and nutrients (营养) for itself.

In 2015, scientist Evan Gora saw a Dipteryx oleifera tree, which had been struck by strong lightning. It wasn't badly harmed while the neighboring trees were killed. Scientists thought this tree could handle lightning, but there was no way to be sure.

Gora and his team saw more of these trees that grew well after lightning strikes. So they did a study. They followed 93 trees struck by lightning for 2—6 years. They found that all 9 Dipteryx oleifera trees in the study survived with little harm. But 84 other trees were badly hurt, and 64% of them died within two years.

These Dipteryx oleifera trees are very tall and have wide tops, making them 68% more likely to be struck by lightning than other trees. During the study, one of the Dipteryx trees was struck twice in 5 years yet continued to grow well.

At present, more studies suggest that these trees attract (吸引) lightning on purpose to destroy other trees and grow better. Scientists are not sure how these trees survive lightning, but they guess it may involve the trees' ability to carry electricity. They are also interested in other trees with similar characteristics.

The sun hung low, brushing gold over the empty area. The air buzzed (喧闹)—not with insects, but with voices, cameras, and the weight of something about to begin.

Roy's heart beat like a drum. He looked out at the people gathering for the pancake house ground-breaking ceremony (仪式). Behind him stood the company men and the reporters. And under his feet—hidden underground—were the tiny burrows (洞穴) of the owls.

No sign marked them. No fence protected them. They asked nothing, made no sound, yet now heavy machines waited, ready to destroy (破坏) their living area.

He thought of Mullet Fingers, the wild boy who cared about animals more than himself. He thought of brave Beatrice who helped even when it was hard. Roy had tried to stay out of trouble. He liked quiet. But now, staying quiet didn't feel right.

He stepped up to the microphone (话筒).

"Excuse me," he said, voice shaking. "Before you dig…you should know the truth."

The crowd (人群) grew quiet.

"There are owls living here," Roy said. "They're small. They're scared. And if you build here, you'll destroy their homes."

Someone in the crowd laughed. A reporter asked, "How do you know that?"

"Because I saw them. I stood right there and watched them. They live here. They belong here. And they matter."

The manager stepped forward, "This is not your business, kid."

Roy turned to face him. His fear turned into something else—strength.

"It's my business. It's everyone's business. We can't just destroy what we don't see. Progress should not come at the cost of wonder," he said.

His hands stopped shaking. People in the crowd began whispering. One mother held her child's hand. A teacher nodded. Even the manager looked uncertain.

Roy didn't know what would happen next. But he did what he could. He spoke the truth.

Roy used to be scared. But doing the right thing made him stronger.

Sometimes, doing what you can is enough to shift (改变) the wind.

Inside the hall, the door was shut, and the key lay on the glass stand. Poor Alice, who was about one foot high after taking some drink, found a cake on the floor. She went up and soon ate all the cake. 

"How strange, how tall I am", said Alice. She looked down at her feet— they seemed so far off. In fact, she was now over nine feet high, which meant she still couldn't get through the door. She sat down and had a good cry till there was a large pool all around her. 

Suddenly, she heard the sound of feet not far off. It was the Rabbit that had come back, with a fan in his hand. Alice felt so in need of help from someone that when he came near, she called out, "If you please, sir..." The Rabbit started as if shot, dropped the fan and ran off as fast as possible. 

Alice picked up the fan, and as the hall was hot, she fanned herself. "Dear, dear How strange all things are today I do wish to get out of the hall ____" she said. 

Then she noticed herself in the glass— she was now not more than two feet high, and still shrinking quite fast. That was the fan. She realised this and dropped it at once, or she would shrink to the size of an ant soon. 

Alice was in a sad fear at the quick change. "Things are worse," said the poor girl,"I was never so small as this. How can I get out?" As she said these words, she lost her footing and was up to her chin (下巴) in salt water— her own tears. 

Just then Alice noticed a mouse swimming towards her. 

"Will it be useful now to speak to this mouse? All things are so strange here. I should think maybe it can talk. At least there's no harm in trying." So she swam up. 

—Adapted from Alice in Wonderland

Hundreds of years ago, ideas like flying to another city through the air sounded like dreams. Yet now scientific study has made them real. Could other fairy tales come true someday?

My dream in life is to become a doctor. I think that being a 1 is one of the most important jobs in the world. Most people are busy 2 every day. They don't have much 3 to relax or do exercise. Lots of them are in bad health because they don' t 4 themselves. I would like to help them get 5 again. I know it's not 6 to be a doctor. I need to 7 a lot. I am going to study hard to do better. As a doctor, I'm going to try to 8 the people who are sick. I'll always be there 9 them when they need me. If someone doesn't have enough 10 , I am still going to help him. I believe after he gets some money, he is going to give the money back to 11 . Maybe doctors can't make much money, 12 I don't care. It would be great to be a doctor 13 I can help others. 14 others would make me happy. What 15 your dream? Can you share it with me?

As an old saying goes, "Never put off until tomorrow what you can do today. " It's about a problem many of us have. The problem is procrastination(拖延症). When procrastination becomes a habit, it can make our lives terrible. Here is some advice for you!

Before your day ends, make a plan fortomorrow. Begin each new day with a clear start. Always keep your plan with you. It can tell you what you need to do first and next. 

You may feel it's impossible before beginning. So try to do it in small steps. Begin by breaking up your task(任务) into smaller parts and finish one part at a time. 

If your workplace is untidy and full of things, you'll need to make some changes. You may need to take away something useless. 

The hardest part about any task is getting started. That's why so many people don't begin their work until the last minute. One way to solve this problem is to try to work on it for only five minutes. Then decide whether or not to continue. Surprisingly, once you begin, you may be able to keep going and finish the task. 

If your friend suffers from procrastination, what advice can you give him or her? (不超过 15词)

①What do you want to be when you grow up? And what's an ideal job? In our hearts, we all dream of an ideal job. However, each of us has our own idea of what this job should really be. As for me, it has to do with the kind of work, the working hours and the income(收入). 

②First, different people choose different kinds of work for themselves. Everyone chooses an ideal kind of work for himself. For example, some people work better if they know all the duties of the job and are able to do it. But some people may like a challenging job better, so they have to overcome a lot of difficulties by themselves. 

③Second, the more free hours the job has, the more ideal it is. Free hours make workers have time for their own life. It gives them time to solve their own problems such as family and children matters. It also lets them relax and enjoy life. 

④Third, income is also very important. Many people think of giving up their jobs because they get too little. But this is not always true. Some people love their jobs and are happy to do the work, even though they get little money. 

⑤What kind of job is an ideal job? Different people have different ideas about it. What about yours?

Have you ever thought about what you want to be when you grow up? Do you want to be a singer, a dancer or a writer? Almost everyone has his or her favourite job. Our Chinese teacher Mr Brown asked us about our dreams in class today. Here is the result of the discussion. 

After the discussion, Mr Brown asked three students to share their dream jobs and reasons. 

Linda: I want to be a teacher like my father. Teachers play an important part in passing on knowledge. 

Andrew: I began to play the violin when I was4, and I am quite good at it now. My dream is to give excellent performances to people around the world. 

Mike: I'd like to be a computer programmer. It is a hot job these days. Some people think computer science is more boring than computer games, but I don't think so. 

Dear Li Lei,

I'm a student of No.45 Middle School now.

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

A: Good morning, I am Frank. I am new here. Nice to meet you.

B:. I am Su Yang.

A:?

B: I am from Beijing. And you?

A: I am from Anhui.?

B: I am 13 years old.

A: Me too.?

B: I like playing basketball.

A: That's cool. Oh, look! Is that tall man our English teacher?

B:. He is our Chinese teacher.

A: Oh. I see.

My sister is studying medicine in the nearestmedical college (医学院) and my brother is studying English literature (文学) at a local (当地的) college. I am the youngest one in our family. I'm in No.1 junior high school.

My sister and brother always buy gifts for me when they come home on holidays. At that time, we usually have a big dinner, talking and sharing. We are a great family. We love each other and have a lot of fun together.

Colorful desks and chairs make the classroom a nice place to study in. Right colors can help students study fast and well.

So it's important to choose colors for students' classrooms.

Red, orange and yellow are warm colors. They make people feel excited. Yellow is good for physics and chemistry classes. Red is the color of excitement, andit is a good one for gym classes. These colors are good if teachers want to teach children something new and let them learn it in a short time.

However, if teachers want children to do some reading or keep quiet to think about something, a room with cool colors may be a better choice.

Blue, purple and green are cool colors. They can make students quiet and calm. Blue is great for bookcases, desks and chairs of the reading area. Green is a good choice for libraries and art rooms.

In primary schools, it's good to use more warm colors. They help young kids learn something new fast. In middle schools or high schools, there can be more cool colors. These colors help young teens focus on their study and help them feel relaxed.

Seeing this, his grandmother comes and talks to him to make him feel good. She sits down next to Sam and gives him a pencil. Sam looks at his grandmother and doesn't take it.

"Things like this are only for students who do well. I don't do well," Sam says.

Sam's grandmother says, "It's not a present for you. I want you to learn something from it. The pencil is just like you. It gets a painful sharpening (痛苦的削磨), just like how you get the pain of not doing well in your test."

"But it will help you be a good student. See, all the good things coming from the pencil are from itself. And you will find something good in yourself, too. Finally, just as the pencil will make its mark (痕迹) on the paper, you will also leave your mark on anything you choose to do. Just ‘sharpen' yourself and do well next time!"

Sam feels good right away. He plans to make a change (改变) as his grandmother says.

②Listen carefully (认真地) in class. Your maths teacher knows so much. Listen to your teacher carefully, and you can know much, too. So be a careful student in class and listen to the teacher carefully.

③Ask your classmates for help. Your maths teacher can't always be with you. When you find a maths problem is too difficult and you can't work it out, please ask your classmates after class. A good classmate is also a good friend. He or she is happy to help you.

④Practice it every day. Do you want to be good at maths? It takes time. You can't learn it well in a day. So practice it every day and then you'll find it so easy.

⑤Maths is a very useful subject. Let's do our best to learn it well.

There is a big photo of our class. In the photo, our class teacher, Miss Liu, sits in the middle of us: Everyone is smiling. From our faces, you can see we are very happy.

And when we get into the classroom, five big windows make our classroom bright. Blue desks and chairs look like the sea. In the front of the classroom is the teacher's desk. It's dark brown. We help teachers clean it every weekday.

Two big blackboards are very helpful for students and teachers. We can enjoy nice pictures and do some interesting things with them.

There is a bookshelf beside the blackboard. _________ Sometimes we read these books together after class. So, the classroom is our second home for study.