8.…man was endangering himself and everything else on this planet by his indiscriminate use of chemical pesticides.人类毫无顾忌地滥用化学药品已经给人类本身以及这一星球上的其他生灵造成危害
The spread of urban areas endangers wildlife.城市的扩大危害了野生动物的生存。
Smoking during pregnancy can endanger the baby.妇女怀孕期间吸烟会损害婴儿的健康。
2）indiscriminate：acting without careful judgment or at random
Indiscriminate development of small paper mills has caused serious pollution in the area.
9.As her title suggests ，Miss Carson was saying that there might come a springtime that would be silent.正如书名所示，卡森女士在告诉人们将来可能出现一个确实寂静的春天。
As was expected，he performed the task with success.
He comes from South，as I know from his accent.从他的口音中我知道他是南方人。（作宾语）
The shape of the envelop suggested that the letter might be from a girl.
His luxurious country villa suggests wealth.
10..Rachel Carson never would have believed that years later she would write a scientific book that would stir up so many controversy.雷切尔·卡森从来也没有想到，多年以后她会写出一本引起激烈争论的科普著作。。
1）never would have done 表示与过去事实相反的情况。
2）stir up：引起 （一般来说不好的情绪或情况）
How to bring up the only child properly has stirred up much controversy in China.
His speech stirred up racial hatred.他的演说激起了种族仇恨。
3）controversy：争论，争议discussion or argument about sth.which many people strongly
disagree about，or are shocked by 侧重指有深刻意见分歧，引起广泛的讨论，争论
argument：（argumentative adj.）争论，辩论，理由，论据disagreement，quarrel，reasoned discussion 指双方均用事实或理由来说服对方的争论
The new nuclear power project aroused much controversy in the country.
Her husband was not convinced by her argument that they need a bigger house.
11 The book created the enthusiasm for “ protecting the environment” that has become so commonplace today.这部书激起人们保护环境的热情，而这已成为当今人们普遍关注的问题。
Soon it will be commonplace for men to travel to the moon.
Home computers are increasingly commonplace nowadays.
This kind of bird is very common in this area.
Seek common ground while reserving differences.求同存异
It is usual with him to have 40-minute walk after supper.
12.Because she had always been such an avid and appreciative reader，her dream when she started college was to become an imaginative writer.由于她一贯喜欢读书，又有鉴赏力，她刚上大学时的梦想是当一位想象力丰富的作家
avid：渴望的，急切的very enthusiastic about sth，eager，keen .
an avid reader，listener，football fans 热心读者，热心听众，铁干球迷
13.At the same time，she did indeed become acquainted with the sea that Masefield had written about.
get/become/be acquainted with； acquaint sb /oneself with sth.：熟悉了……，使熟悉……，
了解，认识，接触to become /get familiar with…
He tried to get acquainted with the Chinese culture as much as possible.
You have to acquaint yourself with your new duties.