1 . The ______ balance of ecosystems needs careful management to make sure they are kept healthy and can last for a long time.

A．impressive

B．suitable

C．appreciative

D．delicate

2 . 根据句子内容，从每组的选项中选出能匹配句子中划线部分意义的选项。选项中有两项为多余选项。

A. to provide B. showing pleasure C. the cause of trouble or danger D. the act of destroying something E. changing from one stage to another F. to increase the quality, value or status G. protecting somebody or something against attack

1. Drugs present a major threat to our society.
2. The army took up a defensive position around the town.
3. There is worldwide concern about the destruction of the rainforests.
4. Food is there to keep you health y and enhance your enjoyment of life.
5. Mrs. Hastings’ eyes grow warmer and more appreciative with my every word.

3 . 她对她的狗的温柔陪伴表示感激。（汉译英）
_______________________________________________________________________________________________

4 . 她对队友在激烈比赛中表现出的坚忍表示感激。（汉译英）
_______________________________________________________________________________________________

5 . 选词填空

A. refillable   B. demanding   C. ultimate   D. reserved   E. appreciative   F. informative   G. varied

1. He said it is still not possible to predict the __________ outcome.
2. To stay healthy, it is essential that your diet is __________ and balanced.
3. Even though I’m quite a/an __________ person, I like meeting people.
4. In addition to learning new skills, _________ speakers also help people acquire fascinating facts.

6 . Being _______ of others’ assistance is a sort of virtue in Chinese traditional culture.

A．worthwhile	B．appreciative
C．energetic	D．innovative

7 . This study may________the tough problem which has puzzled academics for long.

A．play a part in

B．close in on

C．be appreciative of

D．throw light on

8 . We are ______ of your support and any words truly cannot express our ______ to you.

A．appreciative; appreciate	B．appreciate; appreciation
C．appreciative; appreciation	D．appreciate; appreciative

9 . Mary is so ________ about painting art that she decides to imitate brilliant works from different painting masters.

A．appreciative

B．critical

C．enthusiastic

D．embarrassed

10 . If you are still ________ the situation here, you can communicate with the locals for more information.

A．appreciative of

B．satisfied with

C．unfamiliar with

D．bored with