Unit 8 Discoveries. Lesson 23 Discovery of the Year.同步练习（含答案）

Unit 8 Discoveries
Lesson 23 Discovery of the Year
同步练习
( ) 1 ---Excuse me. Is that your bike?
---No, it’s not _______.
A. his B. hers C. yours D. mine
( ) 2. I usually get up _______ seven o’clock every morning.
A. at B. on C. in D. to
( ) 3. I have two brothers. One is a manager, _______ is a doctor.
A. other B. another C. others D. the other
( ) 4. --- Would you like to play basketball with us?
--- I’d love to. But I must finish _______ my room first.
A. clean B. to clean C. cleaning D. cleaned
( ) 5. There are no buses, _______ you have to go there by bike.
A. so B. or C. but D. for
There have been many great inventions that change the way we live. The first great ___1___ was one that is still very important today-the wheel. This made it easy for man ___2___ heavy things and to travel long distances. For hundreds of years after that, there were ___3___ inventions that had as much effect as the wheel. Then in the early 1800's the world started to change ___4___. There was little unknown land left in the world. People did not have to explore much anymore. In the second half of the 19th century many great inventions were made. ___5___ them were the camera, the electric light and the radio. These have all become a big part of our life today.
The first part of the 20th century saw more great inventions. The helicopter in 1909. Movies ___6___ sound in 1926. The computer in 1928. And jet planes in 1930. This was also a time when a new ___7___ was first made. Nylon came out in 1935. It changed the kind of clothes people wear. Of course new inventions continued to be made. Man began looking __8___ ways to go into space. Russia made the first step. Then the United States took another. Since then other countries，including China and Japan, ___9___ their steps into space. In 1969 man took his biggest step away from earth. ___10___ first walked on the moon. This was certainly just a beginning. New inventions will someday allow us to do things we have never yet dreamed of.
( ) 1. A. scientist B. artist C. musician D. invention
( ) 2. A. carry B. carrying C. to carry D. carried
( ) 3. A. few B. a few C. little D. a little
( ) 4. A. largely B. differently C. greatly D. freely
( ) 5. A. Between B. Among C. Before D. After
( ) 6. A. in B. of C. on D. with
( ) 7. A. mistake B. product C. world D. material
( ) 8. A. for B. out C. after D. around
( ) 9. A. made B. were made C. have made D. hade made
( ) 10. A. Chinese B. Japanese C. Americans D. Russians
Welcome to Youth Radio, your radio. Here we’re proud to introduce three Amazing Kids.
Gina, who is thirteen years old, got first prize in the "Young Cook of the Year" competition and she wants to write a recipe book for kids. "I want it to be fun to read and easy enough for children tousle," she says. Gina learned by watching her father, who's also good at cooking, in the kitchen. She wants to encourage other children to cook because "everyone needs to eat so it's a skill that will always be useful!" Seventeen-year-old Brian used to love running until he was hurt in a serious accident three years ago. He lost part of one leg and didn't even expect to walk again Now he's an athlete who has recently taken part in a long race. "After my accident I wanted to give up," he says. "But now I'm happy to be alive and able to continue running." Helen has always been good at science, but she thought it was too difficult to become an inventor.
Then she heard about an accident that had happened when a car hit a train in her town. "That gave me an idea," says the clever sixteen-year-old It took her over a year to invent a small special machine that tells car drivers when a train is coming. One company is already interested in selling it, so it maybe in the shops soon!
Do you know a child like them? Please e-mail us at amazing kids@ maid. com and tell us why her she should be on our radio. Thank you.
What was Gina the winner of?
_________________________________________________
Does Gina want to write a children's recipe book? Why?
_________________________________________________
Why is it surprising that Brian is an athlete?
_________________________________________________
What is Helen's new invention used for?
_________________________________________________
What do you think the three Amazing Kids are like?
_________________________________________________
假如你叫李敏，刚收到你的美国笔友Wendy写来的一封信。信中告诉了你一些她暑假时的难忘经历，并且询问你的暑假过得怎么样。请你给她写一封信，向她讲述你暑假期间的一次难忘经历。词数100左右。
A
In some science fiction movies, evil robots refuse to die, no matter how hard people fight back.
Now science fiction has become science fact. For the first time, scientists have made a robot that can take a beating (挨打) and keep on going. Scientists from Cornell University made the robot, which looks like a spider with four legs.
Until now, even the most advanced (先进的) robot was almost certain to break down when it was damaged. That is because its computer inside simply doesn’t know how to make the machine work after its shape has changed.
To deal with this problem, the scientists put eight motors (发动机) and two sensors (传感器) that read how the machine is working. They all give signals to the machine’s software. Using this information, the computer can then figure out the machine’s shape at any moment.
The new technology is a big advance in robot-making, scientists say, and it’s far from scary. It may someday help scientists create better artificial (假的) arms and legs and give new freedom to people who lose them. It might also help scientists understand how people and animals figure out their own sense of place in space.
“It has been difficult to design robots that can work well when the environment changes or when it’s damaged,” says Olaf Sporns of Indiana University in US. “With this work, we are nearer to solving this problem.”
( ) 1. Why do robots easily break down when they are damaged?
A. They cannot repair themselves. B. The computer has changed a lot.
C. They have no computers inside. D. The computer cannot work if the robot changes.
( ) 2.The new technology allows the robot to _________.
A. do house work for humans B. keep working after being damaged
C. remember a lot of information D. tell people where it is
( ) 3.The underlined word “them” in Paragraph 5 refers to ________.
A. sensors B. robots C. arms and legs D. scientists
( ) 4. How do the sensors in the robot work?
A. They can replace the computer when it’s broken.
B. They can find out where the damage comes from.
C. They help the computer learn the robot’s condition.
D. They can send signals to the person who uses the robot.
( ) 5. The passage is probably from____________.
A. an advertisement B. a tour guide C. a notice D. a newspaper
参考答案
DADCA
DCACB DDACC
1. Because they were hungry for knowledge / Because her class were hungry for knowledge. /She liked her special class because they were hungry for knowledge.
2. On the day before their holiday break / On the day before their holiday break, they brought their teacher gifts. /They brought their teacher gifts on the day before their holiday break
3. A shy girl. /A shy girl sent a stuffed monkey to the teacher.
4. No, it wasn’t.
5. Happy. /Thrilled./Pleased /Excited /Moved／…She felt happy/thrilled/pleased/excited/moved/...
When she got the presents.
When she got the presents, she felt happy/thrilled/pleased/excited/moved/.…
略
D　B　C　C　D