The Development of Rubber
Here is the story of rubber. From the earliest time it was __1__ common knowledge to the Peruvians that when a cut was made in the outside skin of a rubber tree, a white liquid __2__ milk came out, and that __3__ this a sticky mass of rubber might be made. This rubber is soft when warm, so that it is possible to give it any __4__. The Peruvians made the discovery that it was very good for keeping out __5__. Then in the early 1800s, the Americans made use of it for the first time. First they made overshoes __6__ their feet dry. Then came a certain Mr. Mackintosh, who made coats of cloth covered with natural rubber. From that day to this we have been coating cloth with rubber as Mr. Mackintosh __7__, and our raincoats are still named after him.
But these first rubber overshoes and raincoats were all soft and sticky in summer, and __8__ and inelastic in the winter when it was cold. But the rubber we have today is soft and elastic, though very strong---even in the __9__ summer and the coldest winter. This was made __10__ by a man called Goodyear. __11__ experiments, he found that nitric acid made the rubber much better, but it is not hard and strong enough. Then strange thing took place. A friend of __12__, Nicholas Hayward, had the idea in his sleep that rubber might be made hard and strong if mixed with sulphur and put in the sun. Goodyear put this idea __13__ the test, and saw that it did have more or less the desired effect---though somewhat less than more. The only effect it had was on the outside of the rubber. It is common knowledge now that the way to make rubber hard and strong is __14__ sulphur. It took Goodyear four more years to find this method. When at last he did it, he had nothing at all. Everything of the smallest value __15__ to get money, even his sons school-books.
1. A) a
B)
C) an
D) the
2. A) like
B) alike
C) in the form of
D) similar
3. A) with
B) from
C) up
D) of
4. A) thing
B) heat
C) press
D) form
5. A) wet weather
B) wet day
C) the wet
D) wet
6. A) to make
B) to keep
C) make
D) keep
7. A) did
B) had done
C) has done
D) was doing
8. A) cold
B) cool
C) hard
D) strong
9. A) warmer
B) warm
C) warmest
D) warm-up
10. A) impossible
B) possibly
C) possibility
D) possible
11. A) After many
B) With an
C) Having made much
D) With regard to
12. A) him
B) his
C) them
D) theirs
13. A) on
B) to
C) in
D) with
14. A) to heat with
B) to heat it by
C) by heating it with
D) by heating with
15. A) was used
B) had used
C) had been used
D) was being used
答案:BABDC BACCD ABBCC
上一篇: 职称英语考试综合类完型填空训练题(4)
2016届高考英语二轮复习考点精炼:专题15 议论文
2016届高考英语二轮复习考点精炼:专题23 图画类与记叙文
2017届高考英语一轮复习课时训练:Unit 9 Wheels
2017届高考英语一轮复习课时训练:Unit 3 Celebration
2016届高考英语二轮复习考点精炼:专题11 特殊句式
2017届高考英语一轮复习课时训练:Unit 18 Beauty
2017届高考英语一轮复习课时训练:Unit 17 Laughter
2017届高考英语一轮复习课时训练:Unit 21 Human Biology
2016届高考英语二轮复习考点精炼:专题3 形容词与副词
2016届高考英语二轮复习考点精炼:专题10 状语从句
2017届高考英语一轮专题突破解题策略课件:10 必修5 完形填空之逻辑推理不严密(新人教版)
2017届高考英语一轮复习课时训练:Unit 19 Language
2017届高考英语一轮复习课时训练:Unit 8 Adventure
2017届高考英语一轮复习课时训练:Unit 11 The Media
2017届高考英语一轮复习课时训练:Unit 22 Environmental Protection
2016届高考英语二轮复习考点精炼:专题14 夹叙夹议文
2016届高考英语二轮复习考点精炼:专题13 记叙文
2016届高考英语二轮复习考点精炼:专题5 动词与动词短语
2016届高考英语二轮复习考点精炼:专题18 主旨归纳题
2017届高考英语一轮专题突破解题策略课件:12 选修6 完形填空之对作者的写作意图不明了(新人教版)
2016届高考英语二轮复习考点精炼:专题22 图表类与说明文
2017届高考英语一轮复习课时训练:Unit 14 Careers
2017届高考英语一轮专题突破解题策略课件:11 选修6 完形填空之上气下气难贯通-对段落关系及解题线索把握不准确(新人教版)
2016届高考英语二轮复习考点精炼:专题2 代词与数词
2017届高考英语一轮复习课时训练:Unit 2 Heroes
2017届高考英语一轮复习课时训练:Unit 12 Culture Shock
2016届高考英语二轮复习考点精炼:专题1 名词与冠词
2016届高考英语二轮复习考点精炼:专题8 非谓语动词
2017届高考英语一轮复习课时训练:Unit 15 Learning
2016届高考英语二轮复习考点精炼:专题6 情态动词与虚拟语气