题目内容

(题文)We’ll go for a walk if it_____ tomorrow.

A. will not rain B. isn’t raining C. doesn’t rain D. isn’t rain

C 【解析】 句意:如果明天不下雨,我们就去散步。if如果,引导的条件状语从句不用将来时态,用一般现在时态来代替;根据rain动词,下雨,否定句加doesn't;故选C。
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In the past 200 years,the earth's temperature has increased greatly.It's reported that a marked increase in the temperature of about 0.7℃ appeared at the end of last century.Some scientists think mini-umbrellas(微型伞)might reduce the global(全球的)temperature.

Building a single umbrella,which is big enough to cover the whole earth,seems to be impossible.Roger Angel,a scientist from the USA,has carried out research to deal with this problem.He came up with an idea of mini-umbrellas.In fact,each mini-umbrella is made up of two parts,a spaceship and a sunshade(遮阳篷).A spaceship weighing about 1g would carry a sunshade that is half a meter long.It would be mostly transparent.That means light can pass it directly to reach the earth,with lands and oceans clearly in view.

Pressure(压力)from the sunlight would keep the little spaceships in position around the earth at a distance of about 1.5 million kilometers.As a result,sending over 1,000 billion mini-umbrellas into space would reduce the amount of sunlight reaching the earth.This allows sunlight to be reflected(反射)back to space easily,causing the temperature of the earth's ground to fall off.Covering large areas of the earth,mini-umbrellas together could reflect 1.8 percent of sunlight back.In Roger's plan,scientists will send up 800,000 mini-umbrellas at a time,20 million times in all during ten years.Scientists suggest the earliest launch could be in just 16 years.

Not all the scientists agree with the idea.Some suppose there should be easier and much cheaper ways to prevent the earth from getting too hot,such as to slow down the pollution people bring and to reduce the human activities.Whatever the result of the argument is,this idea of mini-umbrellas in space is certainly creative.

1.The underlined word“transparent”here probably means “ ”.

A. 透明的 B. 透气的 C. 透风的

2.Picture shows the right information about the mini-umbrellas.

A. B. C.

3.After scientists send over 1,000 billion mini-umbrellas into space, .

A. pressure from the sunlight would allow the mini-umbrellas to be reflected back to space easily

B. the mini-umbrellas would reduce the amount of sunlight reaching the earth

C. sunlight would never come into the earth

4.Which of the following is NOT true according to the passage?

A. Scientists suggest that the earliest launch could be in just 16 years.

B. A spaceship weighing about 1g would carry a sunshade.

C. Roger will send up 800,000 mini-umbrellas into space during 20 years.

5.The best title for this passage should be .

A. THE TEMPERATURE OF THE EARTH

B. A MINI-UMBRELLA PLAN

C. CHEAPER WAYS TO PREVENT THE POLLUTION

1.A 2.C 3.B 4.C 5.B 【解析】 试题本文是一篇说明文。介绍了在过去的200年内地球温度快速升高。美国的科学家已经在研究解决这个问题的方法: 制造微型伞来降低全球的温度。文章从科学的角度详细介绍了这种伞的作用, 但也有其他科学家不赞成这种做法。但不可否认这种伞是一种创造性的发明。 1.A 词义猜测题。由第二段最后一句中的That means...

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

The first time I went abroad was when I went to London. It was in the summer holidays about five or six years ago and I went with my friends, 1., so we decided to travel by coach. We left at five o’clock in the morning and the journey to London took about sixteen hours.

We stayed in London for three days, in a youth hostel(青年旅社) not far the centre. 2.. The beds were not very comfortable and the bathroom was very small but it had a wonderful view overlooking the Thames.

3. First, we went to see all the famous sites: Big Ben, Piccadilly Circus, and Buckingham Palace. Then we went shopping in Oxford Street. On the last day, my friends and I went to Camden Market. You can buy all kinds of jewelry(珠宝) and clothes there. 4.. It was really sunny in the afternoon, so we went to watch a football game. Unfortunately, I think the ring fell out of my pocket during the game, and I had to buy another one.

5., although the youth hostel was not perfect. Next time, I will stay at the Ritz, but I will never feel as excited as I did that first time.

A.I really enjoyed visiting London

B.I bought a silver ring for my sister

C.We were all very excited on the coach

D.The plane and train were quite expensive

E.While we were in London, we walked a lot

F.My friends and I had a big room on the top floor

G. I’ve been back to London several times since then.

1.D 2.F 3.E 4.B 5.A 【解析】文章大意:短文介绍了作者五六年前和朋友一起第一次去伦敦旅行的经历。 1.考查上下文理解判断能力。根据下文so we decided to travel by coach所以我们决定坐长途汽车,结合选项,可知D选项The plane and train were quite expensive飞机和火车都比较贵,符...

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