What should be the next step of the research、

试卷相关题目

• 1All of the statements are true about the new method EXCEPT that ________.

  A.The new method is cheaper since nanoparticles can be recovered

  B.the new method can remove the pollutants from water completely

  C.the new method makes use of membrane filtering and chlorine

  D.the new method saves energy since it depends on sunlight

  开始考试点击查看答案
• 2Which of the following is true about the traditional treatments、

  A.They are efficient and work well all the time.

  B.They are more dangerous to environment.

  C.They are comparatively cheap to adopt.

  D.They are inconvenient for implementation.

  开始考试点击查看答案
• 3Which of the following is true about naphthenic acids、

  A.They hurt the environment and human health.

  B.They can only exist in water within hours.

  C.They can take in sunlight by nanoparticles.

  D.They can biodegrade naturally and quickly.

  开始考试点击查看答案
• 4What is photocatalysis、

  A.The wastewater that biodegrade naturally.

  B.The reaction that nanoparticles absorb sunlight.

  C.The research team that makes the discovery.

  D.The research team that makes the discovery.

  开始考试点击查看答案
• 5Which of the following is true about Hooke’s contribution、

  A.He discovered the mechanism of cells.

  B.He revealed the function of cells.

  C.He discovered small rooms in cutting of cork.

  D.He grasped the full effect of his discovery.

  开始考试点击查看答案
• 6As is given in the first paragraph, the reason why the car has become a problem is that ________.

  A.poor people can’t afford it

  B.it is too expensive to maintain

  C.too many people are using it

  D.it causes too many road accidents

  开始考试点击查看答案
• 7According to the passage, the car started to gain popularity because ________.

  A.it didn’t break down as easily as a horse

  B.it had a comparatively pleasant odor

  C.it caused less pollution than horses

  D.it brightened up the gloomy streets

  开始考试点击查看答案
• 8What impact did the use of cars have on society、

  A.People were compelled to leave downtown areas.

  B.People were able to live in less crowded suburban areas.

  C.Business along trolley and rail lines slackene

  D.D.City streets were free of ugly overhead wires.

  开始考试点击查看答案
• 9Mr.Flink argued in his book that cars would not be widely used in other countries because ________.

  A.the once booming car market has become saturated

  B.traffic jams in those countries are getting more and more serious

  C.expensive motorways are not available in less developed countries

  D.people worry about pollution and the diminishing oil resources

  开始考试点击查看答案
• 10What’s wrong with Mr. Flink’s prediction、

  A.The use of automobiles has kept increasing worldwide.

  B.New generations of cars are virtually pollution free.

  C.The population of America has not increased as fast.

  D.People’s environmental concerns are constantly increasing.

  开始考试点击查看答案