Ques:Read the following article and select the best answer. Article: China Science and Technology Museum was opened to the public in September 1988. But the second project was completed in May 2000. Its main task is to spread knowledge of science and technology among the public. The activities of China Science and Technology Museum include popular science exhibitions, Astro-vision film shows, training education programs and experiment exhibition programs. The museum has an area of 40,000 square metres, of which 16,000 square metres is for exhibition halls. The Astro-vision Theatre is one of the museum's major attractions and also one of the largest Astro-vision theatres in the world. It makes visitors feel they are in actual events rather than see a film. Many great science activities are often held at the museum, and the museum wants to be an important window to the world. Question: People could visit the museum since _ . - twenty years ago - September, 1988 - May, 2000 - May, 2005

Ans:September, 1988
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Ques:Read the following article and select the best answer. Article: Choose the best answer (,) I put my carry-on in the luggage compartment , and sat down in my seat.Just before take-off,a line of soldiers came down the aisle and filled all the empty seats. After flying for about an hour,an announcement was made that sack lunch were available for $5.As I reached for my wallet to buy one,I overheard the soldier ask his buddy if he planned to buy lunch."No ,that seems like a lot of money for just a sack lunch.I'll wait till we get to Chicago."His friend agreed. I looked around at the other soldiers.None were buying lunch.I walked to the back of the plane,and handed the flight attendant a $50 bill." Take a lunch to all those soldiers." After we finished eating. I went again to the back of the plane,heading for the restroom.A man stopped me."I saw what you did.I want to be part of it.Here,take this."He handed me $25. Soon after I returned to my seat,I saw the Flight Captain coming down the aisle. When he got to my row,he stopped and said,"I want to shake your hand.I was a soldier and I was a military pilot.Once,someone bought me a lunch. It was an act of kindness I never forgot."I was embarrassed when applause was heard from all of the passengers. Later I walked to the front of the plane so I could stretch my legs.A man who was seated about six rows in front of me reached out his hand,wanting to shake mine.He left another $25 in my hand. We landed in Chicago,I picked up my belongings.Waiting just inside the airplane door was a man who stopped me and put something in my shirt pocket.Another $25. Upon entering the terminal ,I saw the soldiers gathering for their trip to their base.I walked over to them and handed them $75."It will take you some time to reach the base.It will be about time for a sandwich.God Bless You."I said. These soldiers were giving their all for our country.I could only give them a couple of meals.It seemed so little. Question: The writer received from the other passengers in the end. - $125 - $75 - $50 - $25

Ans:$75
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Ques:Read the following article and select the best answer. Article: HIGH (Human Growth Hormone) could be the favorite drug at the next athletic world championships, and we might never know it. It is a natural substance produced by the human body, and it helps children's bones and muscles to grow. Scientists are allowed to make the drug and it is also legal to take HGH in most countries. HGH is considered a wonder drug for children. It helps many children with growth problems every year. However, some athletes are now taking the drug. HGH helps add muscle in adults and recent research by the World Anti-Doping Agency shows that HGH may improve the sportsman's time by 5% when he takes part in short, fast races. Some athletes say that HGH surely makes them stronger. It also helps them to recover more quickly from injuries. Although it is _ by most professional sports, HGH is almost impossible to test for. The drug is completely natural and it will only show in tests for around 24 hours after taking it. Testing is usually done only during competitions, but athletes use HGH during training, so it is very difficult to know who has used the drug. This makes it very attractive for some athletes. Scientists are developing a new test which will find the drug in the body for up to two weeks. But it isn't going to be easy. Everybody has different levels of natural HGH in their body. For this reason, scientists are warning athletes of the possible problems with the drug. Research shows that HGH increase the risk of cancer. But is this enough to stop athletes from taking it? Scientists don't think so. Some athletes will do all they can to win, and worry about their health later. Question: Scientists are afraid that _ . - some athletes will pay no attention to the dangers of using HGH. - there isn't any risk of developing cancer as a result of taking HGH. - health problems caused by HGH will stop athletes from taking it. - athletes' results are almost the same, so they want HGH to help them be the best.

Ans:some athletes will pay no attention to the dangers of using HGH.
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Ques:Read the following article and select the best answer. Article: Fashion isn't very environmentally-friendly because it makes people buy things they don't need, just because they're new. We want to take care of the environment, we don't want to pollute the air and we don't want to waste energy and resources. But we also want to be fashionable. How can we buy fashionable clothes and protect the environment? Old styles are fashionable again, so one way is to buy second-hand clothes -- recycled clothes. Another way is to buy' fair trade clothes. These clothes are either recycled or made in a ' way that protects the environment. They also protect the people who make the clothes. Surprisingly, white cotton is one of the least environmentally-friendly crops of all. To protect the cotton, the growers use chemicals that pollute water, make farm workers ill and kill wildlife. New materials, such as hemp and bamboo, grow quickly and are more environmentally-friendly. These materials are very soft, and look fantastic. The best materials are coloured using natural dyes, made from plants. Environmentally-friendly clothes are practical but until now they were often dull. Now fashion-designers are working with these materials and the clothes are beautiful as well. So now we can buy fashionable clothes that are also environmentally-friendly. Question: Which of the following is more environmentally-friendly? - Materials soft and looking fantastic. - Any materials coloured using natural dyes. - Hemp and bamboo. - White cotton.

Ans:
Any materials coloured using natural dyes.
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