1 . These new revelations could have a big i________(n.作用) on human digestive health research and manufacturing. (根据中英文提示单词拼写)

2 . There are many Easter traditions and________(风俗). The most typical food is Easter eggs. The rabbit is also a symbol of Easter. (根据汉语提示单词拼写)

3 . She will be remembered for her selfless ________ (devote) to the cause of the poor.

4 . They tended to lose cognitive (认知的) f________ at a much slower rate than those with the least mentally challenging jobs. （根据首字母单词拼写）

5 . 选词填空

A. exploration       B. substitute        C. compliment     D. emergency        E. tendency

1. An outbreak of fire or an accident is an ________.
2. I have a ________ to talk too much when I am nervous.
3. Reduced-calorie cheese is a great________ for cream cheese.
4. The boss gave her a ________ because of her diligence.
5. They will begin their ________ to Antarctica next month.

6 . 当他看到他最喜欢的电影明星时，他非常激动。
He was on the ________ of his ________ when he saw his favourite film star.

7 . 这样他就能一举两得。
This way, he can kill two ________ with one ________.