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2017年全国乙卷英语试题及答案

来源：网络整理
发布时间：2017-06-09 10:48:00
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D

A buld-it-yourself solar still (蒸馏器) is one of the best ways to obtain drinking water in areas where the liquid is not readily available. Developed by two doctors in the U. S. Department of Agriculture, it’s anexcellent water collector. Unfortunately, you must carry the necessary equipment with you, since it’s all but impossible to find natural substitutes.The only components required, though, are a 5’× 5’ sheet of clear or slightly milky plastic, six feet of plastic tube, and a container— perhaps just adrinking cup — to catch the water. These pieces can be folded into a neatlittle pack and fastened on your belt.

To construct a working still, use a sharp stick or rock to dig a hole four feet across and three feet deep. Try to make the hole in a damp area to increase the water catcher’s productivity. Place your cup in the deepest part of the hole. Then lay the tube in place so thatone end rests all the way in the cup and the rest of the line runs up — and out— the side of the hole.

Next, cover the hole with the plastic sheet, securing the edges of the plastic with dirt and weighting the sheet’s center down with a rock. The plastic should now form a cone (圆锥体) with 45-degree-angled sides.The low point of the sheet must be centered directly over, and no more than three inches above, the cup.

The solar still works by creating a greenhouse under the plastic. Ground water evaporates (蒸发) and collects on the sheet until small drops of water form, run down the material and fall off into the cup. When the container is full, you can suck the refreshment out through the tube,and won’t have to break down the still every time you need a drink.

32. What do we know about thesolar still equipment from the first paragraph?

A. It’s delicate.

B.It’s expensive.

C. It’s complex.

D.It’s portable

33. What does the underlinedphrase “the water catcher” in paragraph 2 refer to?

A. The tube.

B. The still.

C. The hole.

D. The cup.

34. What’s the last step of constructing a working solar still?

A. Dig a hole of a certain size

B. Put the cup in place

C. Weight the sheet’s center down

D. Cover the hole with the plasticsheet

35. When a solar still works,drops of water come into the cup form.

A. the plastic tube

B.outside the hole

C. the open air

D. beneath the sheet

 

第二节 (共5小题；每小题2分，满分10分) 

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。

If anyone had told me three years ago that I would be spending most of my weekends camping. I would have laughed heartily. Campers, in my eyes, were people who enjoyed insects bites, ill-cooked meals, and uncomfortable sleeping bags. They had nothing in common with me. ___36___.

The friends who introduced me to camping thought that it meant to be a pioneer. ___37___ We sleep  in  a tent, cooked over an open fire, and walked a long distance to take the shower and use the bathroom. This brief visit with Mother Nature cost me two days off from  work, recovering from a bad case of sunburn and the doctor’s bill for my son’s food poisoning.

I was, nevertheless, talked into going on another fun-filled holidayin the wilderness. ___38___ Instead, we had a pop-up camper with comfortable beds and an air conditioner. My nature-loving friends had remembered to bring all the necessities of life.

___39___ We have done a lot of it since. Recently, we bought atwenty-eight-foot travel trailer complete with a bathroom and a built-in TV set. There is a separate bedroom, a modern kitchen with a refrigerator. Thetrailer even has matching carpet and curtains.

___40___ It must be true that sooner or later, everyone finds his or her way back to nature. I recommend that you find your way in style.

A. This time there was no tent.

B. Things are going to be improved.

C. The trip they took me on was a rough one.

D. I was to learn a lot about camping since then, however.

E. I must say that I have certainly come to enjoy camping.

F. After the trip, my family became quite interested in camping.

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