题目内容

---At present, many people like talking about “Kuaidi” and “Didi”. I really wonder ______.

---You call to order a taxi through them on your mobile phone easily.

A. how can I use them

B. who uses them most

C. what they are used for

D. when do people use them

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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 and keep on going. Scientists from Cornell University made the robot, which looks like a spider (蜘蛛) with four legs.

Until now, even the most advanced robot was almost certain to break down when it was broken. 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 (信号) to the machine’s software. Using this information, the computer can then work 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 man-made (人造的) arms and legs and give new freedom to people who lose them. It might also help scientists understand how people and animals work 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 the US. “With this work, we are nearer to solving this problem.”

1.Why do robots easily break down when they are damaged?

A. They have no computers inside.

B. The computer has changed a lot.

C. They cannot repair themselves.

D. The computer cannot work if the robot changes.

2.The new technology allows the robot to .

A. do house work for humans

B. tell people where it is

C. remember a lot of information

D. keep working after being damaged

3.The underlined word “them” in Paragraph 5 refers to .

A. sensors B. arms and legs C. scientists D. robots

4.How do the sensors in the robot work?

A. They help the computer learn the robot’s condition.

B. They can find out where the damage comes from.

C. They can replace (替代) the computer when it’s broken.

D. They can send signals to the person who uses the robot.

How many ____ do you have?

A.pair of sock B.pairs of socks

C.two pair of socks D.two pairs of socks

找出与所给单词划线部分读音相同的选项。

1.bread A.sea B.great C.breakfast D.teacher

2.with A.other B.tooth C.thousand D.three

3.will A.violin B.alive C.king D.online

4.food A.foot B.look C.school D.good

5.cost A.across B.close C.country D.ocean

①Some days, don’t you think, “Wouldn’t it be nice if the clothes just washed itself?” Self-cleaning clothes may sound crazy. But Australian researchers have found a way to make something like this possible!

②A team at RMIT University in Melbourne, Australia, found a way to put special nanostructures (纳米结构) into clothing, which can then clean the clothes. When sunlight hits the nanostructures, they break down the dirt and marks that don’t belong on your clothes.

③The nanostructures don’t break down the real clothing because cotton and the other clothing materials are too strong to break down. According to CNN, the researchers cover the clothing in a solution made of silver and copper(铜) nanostructures. All it takes is 40 minutes of sunlight and your clothes will look as good as new.

④So if you spill on yourself during lunch, you can step outside for a walk, and it will be clean by the time you go inside. It not only makes your life easier, but it can also be good for the environment.

⑤According to the US Department of Energy, washing a piece of clothing uses about 25 gallons of water. Water is a very important resource, so using less of it to wash clothes is better for the environment. But one of the scientists at RMIT University knows more needs to be done.

⑥“There’s more work to do before we can start throwing out our washing machines,” said Dr Rajesh Ramanathan, “but this is a strong foundation(基础).” So what’s the next step? Ramanathan wants to either start selling the solution by itself or asking clothing makers to treat(处理) the clothing with the solution while clothes are being made.

1.According to the first three paragraphs, _____.

A. the self-cleaning clothes are easily worn out

B. the clothes will be covered with silver and copper after self-cleaning

C. people can use the self-cleaning clothes on rainy days

D. the nanostructures can break down dirt and marks on clothes

2.What does the underlined word “solution” in Paragraph 3 mean?

A. 方案 B. 溶液 C. 水盆 D. 模型

3.What do Paragraphs 4 & 5 talk about?

A. How the self-cleaning clothes are made.

B. How the self-cleaning clothes work.

C. What advantages the self-cleaning clothes have.

D. What helps the self-cleaning clothes work.

4.From the passage, we learn that _____.

A. it’s time to throw out our washing machines

B. the solution sells well

C. clothing makers like the solution

D. the solution is not on sale yet

5.We might read the above passage in ________.

A. a fashion book B. a guide book

C. a science magazine D. a newspaper advertisement.

---Do you know that another famous host passed ______ last week?

---Yes. She died ______ cancer. And she warned people not to sleep too late before her death..

A.away; from B. by; of

C. by; from D. away; of

---Tommy, why don’t you go to the party with us tonight?

---Thank you, John. It’s a very kind ________, but I can’t really accept it.

A. offer B. decision

C. promise D. excuse

--- Are you in the ____ class?

--- Yes, we are. We are all in Class One.

A. old B. last C. same D. big

遣词造句：根据提供的图画和提示词，写一个符合图意的完整、正确的句子。

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