选词填空：将affect, defect,effect, infect放到合适的位置，完成句子。

Other cyclic variations in the relationships between Sun, Moon and Earth also _____ tidal range.

He was a vain fellow, and not conscious of this nor any _____.

He paused for _____.

_____ plants may be dwarfed, mature early, suffer severe blast.

点津：

词根fect=make，do。

affect的前缀-a表示“向上”,而effect的前缀-e表示“出来”。因此, affect侧重表示原因,即“影响”的动作; 而effect侧重表示结果,即“造成”一种特殊效果。试比较:

My opinion was affected by the recent development of events.

我的看法受到了事态发展的影响。

The recent development of events effected a change in my opinion.

最近事态的发展使我的看法起了变化。

Affect:影响

The tax increases have affected us all.

加税已经影响了我们所有的人。

Defect：缺点，过失，瑕疵。

visual defects; this device permits detection of defects in the lungs.

对生理上有缺陷的人不能歧视。

Effect：效果、影响

When does the new law come into effect?

新法律何时生效？

Infect：感染、影响

Mary's high spirits infected all the girls in the class.

玛丽的兴致感染了全班的女孩。

答案： affect, defect, effect, Infected

Other cyclic variations in the relationships between Sun, Moon and Earth also affect tidal range.

太阳，月球和地球之间的其它周期的变化也对潮汐大小产生影响。

He was a vain fellow, and not conscious of this nor any defect.

他是个自高自大的家伙，但他自己没有意识到这点，也没有感觉到自己有何缺点。

He paused for effect.

为了加重语气，他稍停了一下。

Go away, I don't want to infect you with my cold.

走开，我可不想把我的感冒传染给你。