Are you holding the ladder? D Only a few kms. 查看更多

 

题目列表(包括答案和解析)

Imagine the situation. You are driving in a village or on a mountain. You have no idea where you are. You passed the last house two hours ago. Then your car doesn’t work. It is night and it is cold. You have no mobile phone. What do you do? Well, next time take a GPS with you. This invention may be able to help you. It is used for finding your position(位置) with the help of satellites (卫星). A GPS can’t start your car, but at least you will know where you are.

? GPS, which means Global Positioning System(全球定位系统), is a small radio receiver. It looks like a mobile phone. You can hold it in your hand, or put in your pocket. It is sometimes put into a watch or a telephone. We also find a GPS in cars, planes, or boats. Some of them have electronic maps, so you know where you are. For example, in a city they can tell you the name of the street.

? There are three parts to GPS. The first part is the receiver. You can hold it in your hand, or have it fixed into your car, plane, etc. The second part is a group of satellites going around the Earth. The receiver communicates with at least four of the satellites and calculates its position. The third part of the system is a network of ground stations all over the world. They control (控制) the satellites and make sure they are working well.

? Some people think that in the future the GPS will be as common as the mobile. They are becoming better and cheaper. There are also new uses for the GPS. Perhaps they will become like watches. Everyone will have one and you will never be lost again.

1.According to the passage, with the help of the GPS, people __________.

A. can’t be lost in a new city

B. can’t find their way in different countries

C. can learn about the culture of an unknown place

D. can spend the least time getting to another place

2.We can learn from the passage that ____________.

A. there are three parts to the GPS

B. a GPS can’t be put into a watch

C. a GPS can help you start your car

D. the GPS are becoming more and more expensive

3.The underlined word “They ” in paragraph 3 means “____________”.

A. Receivers?????? B. GPS???????? C. Satellites?????? D. Ground stations

4.What can we infer(推断) from the passage?

A. All GPS devices have electronic maps.

B. People in many countries will use the GPS for free.

C. The receiver of the GPS communicates with at least five of the satellites.

D. The GPS will become more and more common in everyday life.

 

查看答案和解析>>

Last weekend, when Jack was walking in the park, he saw a woman, who lived a few miles away, sitting on a bench with a dog beside her. The dog was looking up at the woman.

Jack walked up to the woman and said, “Hello, Sue, how are you? May I sit and talk with you for a while?”

“Of course, please sit down,” Sue said.

Jack sat down next to Sue on the bench, and they talked quietly together. The dog continued to look up at Sue, as if waiting to be fed. “That’s a nice dog, isn’t he?” Jack said, pointing at the animal.

“Yes, he is. He’s handsome. He’s a bit of a mixture, but that’s not a bad thing. He’s strong and healthy.”

“And hungry,” Jack said. “He hasn’t taken his eyes off you. He thinks you’ve got some food for him.”

“That’s true,” Sue said. “But I haven’t.”

They both laughed and then Jack said, “Does your dog bite?”

“No,” Sue said. “He’s never bitten anyone. He’s always gentle and friendly.”

Hearing this, Jack decided to hold out his hand and touched the animal’s head. Suddenly it jumped up and bit him.

“Hey!” Jack shouted. “You said your dog didn’t bite.”

Sue replied in surprise. “Yeah, I did. But this is not my dog. My dog’s at home.”

1. Jack and Sue were ______.

A. friends                                                   B. next—door neighbours            C. strangers

2. The dog looked at the woman because ______.

A. the woman wanted to feed him     B. the woman was friendly          C. it was hungry

3. Jack touched to dog because he believed ______.

A. the dog was handsome    B. Sue’s dog was unfriendly     C. the dog belonged to Sue

4.Do Sue’s dog bite?

A. Yes, it does.                                         B. No, it doesn’t.                            C. We don’t know.

5.Which of the following can be the best title of the passage?

A. A Wrong Question                             B. Sue’s Dog                                     C. A Pleasant Meeting

 

查看答案和解析>>

When you cough or sneeze, you’d better turn your head away from others and cover your mouth with the full part of your hand. And then, you should say, “Excuse me.”

       This seems so simple, but it is surprising how many kids have never been told to do this. Actually, I notice adults all the time who cough and sneeze in public without placing a hand over the mouth. One important thing I point out to the kids is that after they sneeze or cough on their hands, they should wash their hands as soon as possible. If not, they will be passing those germs(细菌)along to everything and everyone they touch.

       If you come to a door and someone is following you, hold the door. If the door opens by pulling, pull it open, stand to the side, and allow the other person to pass.

       After a few weeks of seeing kids try to get through doors in the school and watching them enter restaurants as the door hit other people, I knew I had to discuss the problem with my students. Teaching them small acts of kindness, such as letting someone else go through a door first as they hold it open, may seem unimportant, but it can go a long way toward helping students realize how to be polite and think others. Once they’ve been told, they’re halfway there.

       When we have to go up moving stairs, we will stand to the right. That will give others who are in a hurry a choice of walking up the left-hand side of the moving stairs. When we are going to enter a lift, the underground, of a doorway, we will wait for others to exit before we enter.

       After college when I moved to London, I was surprised at how polite everyone was in the subways. I was even more touched when I traveled to Japan. In both places, people made effort to make way for others. On moving stairs, everyone stood to the right and walked to the left. On lifts, everyone would stand over to the side and allow others to exit before they would begin to enter.

1.When you cough or sneeze, you should _________.

A. touch everything   B. cover your mouth  

C. point out to the kids  D. pass the germs to others

2.If you come to a door and someone is following you, you’d better ________.

A. hold the door          B. pass through           C. close the door               D. stand to the side

3.From the passage we can know the writer is a _________.

A. doctor                   B. traveler                  C. parent                         D. teacher

4.The passage is mainly about _________.

A. the rules of behavior in public                     

B. the ways of communication

C. the acts of kindness among people               

D. the knowledge of social life

 

查看答案和解析>>

Imagine the situation. You are driving a car along a desert or on a mountain. You have no idea        you are. You passed the last house two hours ago. Then your       breaks down. It is night and it is cold. You have no mobile phone. What do you do? Well, next time take a        with you. This invention may be able to help you. It is a device(装置) which uses satellites to find the user’s position(位置). It can find your position to within 20 metres. A GPS cannot start your car, but at least you will         where you are.

GPS, which means Global Positioning System, is a small        receiver. It looks like a mobile phone. You can hold it in your hand, or put in your pocket. It is sometimes put into a watch or a        . We also find GPS devices in cars, planes, or boats. Some of these devices have electronic       , so you know where you are. For example, in a city they can tell you the name of the         .

There are       parts to the Global Positioning System. The first part is the     . You can either hold it in your hand      have it fixed into your car, plane, etc. The second part is a group of satellites orbiting the Earth. The receiver contacts at least four of the satellites and calculates(计算) its position. The third part of the system is a network of ground stations. They are all over the world. They       the satellites and make sure they are working well.

Some people think that in the future the GPS will be as        as the mobile. They are becoming       and more and more accurate(精确的). There are also new uses for the GPS. Perhaps they will become like       . Everyone will have one and you will never be lost again.

1.A.where                 B. what               C. who                  D. how

2.A.ship                B. car           C. train                  D. plane

3.A.watch         B. ring         C. clock                 D.GPS

4.A.advise                  B. know              C. represent             D. speak

5.A.radio          B. TV           C. robot                D. machine

6.A.room          B. office               C. road                  D. mobile phone

7.A.parts               B. maps                 C. video                D. music

8.A.studio         B. teenager     C. bus                  D. street

9.A. five            B. four                 C. three                D. two

10.A. sender             B. receiver      C. Internet      D. system

11.A.and               B. then         C. but           D. or

12.A.control              B. achieve       C. allow               D. imagine

13.A.expensive              B. special           C. new                  D. common

14.A. cheaper           B. easier              C. more expensive       D. bigger

15.A.computers             B. robots            C. satellites      D. watches

 

查看答案和解析>>

请根据句意从方框中选择合适的动词,并用其适当时态填空,使句子通顺

read    want    plant    hold  forget

1.Amy is crazy about dancing and she __________ to be a dancer when she grows up.

2.I __________ this magazine. Will you please show me another?

3. 一Can you hear some students singing in the hall?

一Yes. Our school __________ a red-song competition there.

4.I __________ to past the letter on my way here this morning. I’ll do it this afternoon.

5.一Why are you in a hurry,John?

一My classmates are waiting for me at the school gate. We__________ trees in the park.

 

查看答案和解析>>


同步练习册答案