1.According to the first paragraph,______ .
A. man-made evolution has improved all species
B. man-made evolution has weakened some species
C man-made evolution can make up for all natural losses
D. natural evolution won’t happen without man’s assistance
2. What does the underlined part “taken a back seat to” in Paragraph 2 mean?
A. Become powerful assistance to.
B. Become a huge barrier to.
C Speeded up the process of.
D. Played a less important role than.
3 What does the third paragraph mainly talk about?
A. Why natural evolution happens so slowly.
B. The way scientists adopt to have genetic defects repaired.
C. The advantages of man-made evolution over natural evolution.
D. How scientists make use of man-made evolution to create new species.
BDC
【2016届高考英语二轮复习阅读理解一百四十集选练:(27)】相关文章:
★ 贵州省贵阳市2014高考英语(新人教版)一轮阅读训练(17)附答案
★ 浙江省湖州市2014高考英语阅读理解一轮(暑假)精炼(13)含答案
★ 2016届高考英语二轮复习阅读理解一百四十集选练:(5)
★ 2014届高考英语一轮复习课时作业(三十一)选修6Module 1《Small Talk》(外研版)
★ 浙江省湖州市2014高考英语阅读理解一轮(暑假)精炼(3)含答案
★ 2016届高考英语二轮复习阅读理解一百四十集选练:(17)
★ 四川省2016届高考英语一轮复习课时作业(20) Module 2 Traffic Jam 外研版必修4
★ 2016届高考英语二轮复习阅读理解一百四十集选练:(2)
★ 【人教版】2014届高考英语一轮复习指导考点针对练:必修2 unit1《Cultural relics》
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21