What does the author mention as a cause of changes in the role of child in the United Stat
第1题
What does the author mean by "better off" in Paragraph 3?
A.richer
B.wiser
C.happier
D.luckier
第2题
What does the author say people prefer for their children nowadays?
A.Personal freedom.
B.Things that are natural.
C.Urban surroundings.
D.Things that are purchased.
第3题
What does the author think about the genetic engineering of pine trees?
A.Time-consuming.
B.Worthwhile.
C.Significant.
D.Technically impossible.
第7题
What does the author really of the idea of having children?
A.It does more harm than good.
B.It contributes to overpopulation.
C.It is troublesome but rewarding.
D.It is a psychological catastrophe
第8题
What does the author say about the effect of nicotine on smokers?
A.It threatens their health.
B.It heightens their spirits.
C.It suppresses their appetite.
D.It slows down their metabolism.
第10题
What does the author tend to agree?
A.Critical thinking serves others' interests.
B.Critical thinking is valuable.
C.Critical thinking should be encouraged.
D.Critical thinking can accomplish a lot.