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1、 Electricity (flow) through thin wires and it is like water in a way.
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2、 The man runs two big (company) now. How great he is!
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3、 The old man tried every (treat) the doctor had suggested, but it was no use.
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4、(warn)parents not to leave children alone can keep children away from danger.
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5、 Trees can keep soil in place, so planting as many trees as possible is a good way to stop (flood).
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6、 To make students have a colourful school life, the e advises schools to organize different kinds of activities for students to join in.
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7、 Nowadays, our whole life is recorded online through all kinds of digital d.
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8、 We all want to live in much scities to keep away from danger.
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9、 It is a really good school in the city. It pus with a more comfortable environment.
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10、 S lights in my home are changeable, so I can switch between bright and soft lighting with voice control.
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11、 Mike seems unaware of the trouble he's causing, and he cmaking trouble.
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12、 People should always follow t rules to prevent any accident.
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13、 With the development of technology, the n in our lives is everywhere.
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14、 阅读还原
Do you have any online classes? It is possible to take classes at home. All you need is a computer and a headset.
However, according to a survey, most students don't like online classes. Many students said it is hard to pay attention to studying while taking online classes. This was true for Lian, a 15-year-old student in a high school. "There are no real teachers watching me. It's harder to always listen to them carefully," she said. Lian prepares a lot before taking her classes to make sure she will pay attention. But these preparations doesn't work well.
Wen, 14 years old, from a high school in Chengdu, thinks online interaction (互动) isn't enough. " And I don't know them well either. When I don't hand in homework, all I get is a short message instead of real concern, " she said.
"It saves time and money compared to taking offline classes. Also, if I don't understand some parts of a lesson, I can watch it over again, "another student said.
A. However, online classes still have other advantages.
B. The online teachers don't really get to know me.
C. I can surf the internet or do other things if I want to.
D. Only 33% of the students would take such classes.
E. She also tries to push herself to talk with teachers.
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15、 完形填空
The first computers were made between the 1930s and 1940s. They were often the 1 of a room. And they were 2 programmed to do Maths problems. They were very important for businesses 3 they could work out very difficult problems again and again, without making mistakes.
In the 1970s, there were 4 computers. People bought computers for their homes. The computers didn't have a mouse, but the keyboard was used to 5 the computer what to do.
When the 6 computer games were sold in the 1980s, people could use computers for 7 as well as for work. During the 1980s and 1990s,computers were sold with speakers and colour screens, and people could play more exciting 8 .
In the 1990s, a revolution (大变革) in communication 9 . People could use computers to talk with family and friends, and businesses could sell products all over the world 10 and easily.Computers are now also used for shopping, watching a movie, and downloading music. And in the future we may have smaller computers we can put in our pockets, and 3D computers for amazing movies and gaming experiences.
（1）A 、 colour B 、 size C 、 height D 、 sound（2）A 、 never B 、 hardly C 、 usually D 、 seldom（3）A 、 because B 、 if C 、 when D 、 after（4）A 、 longer B 、 heavier C 、 smaller D 、 larger（5）A 、 teach B 、 tell C 、 help D 、 show（6）A 、 one B 、 two C 、 first D 、 second（7）A 、 health B 、 fun C 、 money D 、 safety（8）A 、 games B 、 songs C 、 sports D 、 balls（9）A 、 took after B 、 took off C 、 took place D 、 took out（10）A 、 quickly B 、 slowly C 、 happily D 、 carefully -
16、他决定改变他的生活并许诺做一个更好的人。
He decides to and promises to be a better person.
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17、虽然我们不确定我们将来想做什么工作，但努力学习总是对的。
Although we are not sure about the jobs we want to do , it's always right to study hard.
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18、因为这次洪水，我们不得不取消运动会。
We had to cancel the sports meeting .
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19、我的笔记本电脑出故障了。
There is something wrong .
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20、为了保证你的数据安全，不要在公共场所使用未知的无线网络。
To ,don't use unknown Wi-Fi in public places.