It is the second-brightest object in our night sky after the moon. It is one of man's greatest scientific achievements. It's the International Space Station(ISS)that orbits(绕……运行)Earth.

Nov. 20 marks the station's 20th birthday. In 1998, the first piece of the ISS was sent into space. Since then, 230 people from 18 countries have visited it.

Five space agencies(空间站)—those of the United States, Russia, Canada, Europe and Japan—worked together to build it. Weighing about 450 tons, it contains many different parts, including labs and solar panels(太阳能板)

Generally, the ISS holds three to six people at one time. Astronauts living there work on a lot of different science projects. The ISS has hosted over 1,500 such projects, according to NASA.

But the station is becoming older. In 2011, Russia announced that the ISS will not be used in 2020 in order to prevent it from becoming dangerous "space junk". But the US later said it would use repairs to make its service life longer(to 2025), the International Business Times reported.

The ISS costs $3-4 billion(21-28 billion yuan)each year. Many have argued that this money could be better spent improving conditions on Earth.

In February, US President Donald Trump announced plans to end support for the ISS by 2025.The US will use its money for other projects, like next-generation rockets and deep-space missions. The Washington Post reported.

What will happen to the ISS after 2025 is unknown. "There are lots of uses," former(前)astronaut Jeffrey Hoffman told NBC News. "Other ISS partners could continue scientific experiments on it. Private companies could turn it into a space hotel."

1.What do we know about the International Space Station?

A.It's the third-brightest object in our sky.

B.It's a spacecraft where astronauts can live and work.

C.Over 450 people have visited the ISS in the past 20 years.

D.It was built to provide solar energy for other spacecraft.

2.What does the underlined word 'it' refer to?

A.Solar panel. B.Space agency. C.Earth D.ISS.

3.What's the main idea of Paragraph6?

A.It's costly to keep the ISS running.

B.Most people were against building the ISS.

C.It was not necessary to build the ISS.

D.The ISS has nice living conditions.

4.What can we know from the passage?

A.No single country could have built the ISS by itself.

B.The US will stop exploring the space after 2025.

C.The ISS will become dangerous "space junk".

D.The ISS could be used as a hotel for space travelers.

There was an old man who used to sleep on the sidewalk of the Fifth Street Post Office. I could smell him before I came close. He wore dirty clothes and his mouth was nearly toothless. I seldom saw him talk with others. If he was not asleep, he talked to himself. I always felt sorry for him. What a poor old man! He must be hopeless and hungry.

One Thanksgiving, we had lots of food left over. I thought about the old man. He might be still hungry, so I packed the food up and drove over to the Fifth Street. It was a cold night. There was hardly anyone out. But I knew he would stay at the same place and I would find him easily. There he was, sitting against a fence(栅栏)near the post office. He was dressed as he always was. I drove my car over to him, rolled down the window and said, "I’ve brought you some food. Would you like some turkey and apple pie?”

However, the old man didn't seem to be very excited about this. He looked at me and said quite clearly, "Oh, thank you very much, but someone has given me food earlier and I'm quite full now. Why don't you take it to someone else who needs it?’

His words were clear and his manners were good. Soon he put his head down into his arms again. I was the only person who didn't know what to say. An old man who was clearly down on his luck still thought about others. Why don't more of us do that?

1.Where did the old man usually stay?

A.Near a fence. B.Beside a car

C.On the sidewalk D.In the post office

2.What can we know about the old man from the text?

A.He liked to talk to himself. B.He knew the writer well.

C.He had a mouthful of teeth. D.He dressed himself nicely

3.Why did the old man refuse the writers help?

A.He didn't like to be helped.

B.He wanted more people in need to get help.

C.He could do nothing to pay the writer back.

D.He didn't like eating the turkey and apple pie.

4.From the passage, we know the old man was________.

A.well-educated B.easy-going C.strong-willed D.kind-hearted

5.What's the best title for this text?

A.It's better to give than to take. B.It’s not too poor to care for others.

C.God helps those who help themselves. D.From small beginning come great things.

Teenagers believe anything is possible if they study hard. But they often forget to think about healthy diets, enough sleep time and exercise. In fact, these things are really important for them to keep fit.

It is important for teenagers to get enough energy. Teenage girls need about 2,200 calories a day while boys need a bit more—doctors suggest 2,800 for teenage boys.50% of their calories should come from healthy food—rice, vegetables and fruit. People often say an apple a day keeps the doctor away. Teenagers also need to drink a lot of water,6 to 8 glasses a day. Drinking enough water will improve their skin.

Teenagers usually need eight to ten hours’ sleep at night, but many Chinese teenagers do not get enough sleep. A report shows that without a good night’s sleep, teenagers seem to be weaker than they should be. Too much homework is not the only reason why teenagers stay up late. Some watch TV or play computer games late into the night. Teenagers should develop good study habits.So some clever students never study late, but they are able to work well in class.

Exercise is something that can help them. Experts suggest that teenagers should spend at least 30 minutes exercising a day, five times a week. They will feel relaxed when they exercise. It can even help them sleep better at night.

1.How many things are important for teenagers to keep fit?

A.2. B.3. C.4. D.5.

2.Half of their calories should come from.

A.rice,vegetables and fruit B.rice,vegetables and meat

C.rice,vegetables and water D.milk and meat

3.The last paragraph(段) mainly talks about.

A.sleeping better B.basic energy

C.necessary exercise D.more exercise

4.Which of the following is NOT true?

A.Boys need much more calories than girls. B.Teenagers need to drink 6 to 8 glasses of water a day.

C.Some clever students never study late. D.They will feel relaxed when they exercise.

5.The passage tells teenagers how to .

A.eat and drink well B.study hard C.keep fit D.drink well

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