Ⅰ.用所给单词的适当形式填空
1．A ________(violence) tornado hit a village in China the other day.
2．As we all know, a bad eating habit is ________(harm) to one's health.
3．Do you believe the ________(exist) of ghost?
4．There is a ________ expression on his face because of the ________ problem. (puzzle)
5．To me the whole ________(global) is like a family.
答案：1.violent 2.harmful 3.existence 4.puzzled; puzzling 5.globe
Ⅱ.完成句子
1．Some of them __________________________ (对……有很大危害) the environment in the past ten years. (harm)
2．Hearing that some measures had been taken in time __________________________ (阻止污染的进一步恶化), they all cheered up. (prevent)
3．__________________________ (有可能) these plants will be moved next year. (chance)
4．The new bridge is ________________________ (三倍宽) that one built last year. (width)
5．When the war ____________________ (爆发), the two countries broke off their diplomatic relations. (break)
答案：1.have done/caused great damage to
2．to prevent pollution from worsening
3．Chances are that
4．three times the width of
5．broke out
