全新版第二版综合B4U1(9)

A) it can stand harsh weather

B) it can be grown together with other plants

C) it doesn't need any chemical fertilizer

D) it will not erode in the forest

正确答案： B

38.

Many coffee farmers shifted to growing coffee plants under direct sun in the 1970s ______.

A) out of the fear of the spread of coffee leaf rust

B) because it was more profitable

C) as new varieties of coffee plants were developed

D) to decrease chemical inputs

正确答案： A

39.

Coffee leaf rust ______.

A) was a great hit to the coffee industry

B) cannot be eliminated by chemical fertilizers

C) didn't constitute a big problem for Latin America

D) ended the growing history of shade coffee

正确答案： C

40.

Many coffee farmers turned to sun coffee ______.

A) as a result of the widespread of coffee leaf rust

B) because it brought about higher profit

C) at the request of USAID

D) with the development of technology

正确答案： B

Part III Vocabulary and Structure ( 10 minutes )

Directions: There are a number of incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE that best completes the sentence.