●实战训练●
A
Have you ever heard of e-books? E-books are electronic books. They are no larger than an ordinary book, with a screen on which you can read.
How does the e-book work?
First, you call up websites on your computer and select books that you want. There are thousands of books provided by different websites on the Internet. Then download the books you like on to your e-book. You can download about 10 books at a time. Now you can just sit back and enjoy yourself reading.
Compared with ordinary books, e-books have many advantages. First of all, e-books save space. You can put as many as 10 books into a thing no bigger than a pocket radio and then carry it everywhere. You can renew reading materials in your e-book as many times as you like. With the development of e-book technology, probably an e-library will appear. Then you just take your e-books there and download what you want to read. You no longer need to worry about whether your books are over-due or not.
根据短文内容，选择可以完成句子的最佳答案。
1. E-books are ________.
A. electronic books
B. no larger than an ordinary book
C. very popular in big city
D. A, B and C
2. First, you ________.
A. call up websites on your computer
B. read books that you want
C. turn on your e-book
D. download the books you like
3. You can download ________ books at a time.
A. two B. ten C. twelve D. twenty
4. E-books ________.
A. save space B. save money
C. look like a pocket radio D. carry it easily
5. There must be an ________ in the future.
A. e-book B. e-mail C. e-library D. e-house
B
Eager to open up a space tourism market, a Russian company presented a “space place” model. It would give tourists the chance to spend an hour in space.
Anybody who can pay about $100,000 would be able to experience zero gravity. About 100 people have already booked seats to fly on the C-21 plane. The US company helped the first space tourist, Dennis Tito, to secure his flight to the International Space Station. Tito is said to have paid $20 million for the eight-day trip. C-21 would offer tourists a small glimpse of space. The aircraft, carrying a pilot and two passengers, will be positioned on top of a carrier airplane until it is 17,100 metres in the air. Once released from the carrier, the ship’s own rocket will send it to a height of over 96 kilometers for three minutes of weightlessness. Then C-21 will slide back into the atmosphere and land like an ordinary plane. The entire flight will only take about an hour.(from www.zkenglish.com)
仔细阅读短文，补上每个句子中所缺的词，使句意完整，语句连贯。
6. A ________ company would give tourists the ________ to spend an hour in space.
7. About 100 people are ________ to spend $100,000 for ________ on the C-21 plane.
8. Dennis Tito is the first ________ ________. He have paid $20 million for the eight-day trip in space.
9. A ________ and two ________ will be positioned on top of a carrier airplane.
10. C-21 will ________ back into the atmosphere and ________ like an ordinary plane.
C
Once a boy who wanted to fly covered his arms with feathers. He used wax to keep the feathers on. But he flew too close to the sun. The wax melted. The feathers came off. Down came the boy!
This is just a story. But it tells us that man has always dreamed of flying. In 1783, this dream came true. Two French brothers invented the hot-air balloon. It rose a thousand feet high.
It took almost 100 years for men to move from the hot-air balloon to the first airship. It was invented in the late 1900s. It was a powered balloon.
In North Carolina of America, less than twenty-five years later, the Wright Brothers flew the first airplane. This first flight, in 1903, lasted less than half a minute. It covered just a few feet.
根据短文内容，选择能回答所提问题的最佳答案。
11. Why did the boy come down from the sky? Because ________.
A. he covered his arms with feathers
B. he used wax to keep the feathers on
C. he flew too close to the sun
D. the wax melted and the feathers came off
12. Who invented the hot-air balloon?
A. Two French brothers. B. the Wright Brothers.
C. Benjamin Franklin. D. Einstein.
13.When was the first airship invented?
A. In the late 1900s. B. About 100 years ago.
C. A and B. D. Many years ago.
14. How about the first airplane?
A. The Wright Brothers invented the first airplane.
B. It flew less than half a minute and a few feet high.
C. This first flight was in 1903.
D. It was born in North Carolina of America.
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