高二英语语法:非谓语动词做主语内容归纳
同学们在日常学习英语的过程中 ,背单词、学语法是最 关键的两件事。
非谓语动词包括不定式、分词、动名词,在句子中不能作谓语。今天分享的高二英语语法归纳内容就是关于非谓语动词的,先来看看非谓语动词做主语有哪些特点和使用注意事项吧:
高二英语语法:非谓语动词作主语
不定式:主动态 to do; 被动态 to be done; 动名词:主动态 doing; 被动态 being done。例1:To act like that is foolish.
例2: It is impossible for me to buy the car with cash. 要我用现金买那辆车是不可能的。例3: Walking is a good form of exercise for both young and old.
例4:—— What made you so late for work today ?
—— Driving to the office was very slow this morning because of heavy traffic.
一般说来,动名词和不定式作主语,可以互换,其意义没有多大差别,但须注意以下两点:
1.表示具体的,尤其是未发生的动作,倾向用不定式(如例2)。
表示无时限的泛指动作(如例3)或描述当时的情况(如例4),倾向用动名词。
2.在下列句型用动名词作主语
It is no good doing.(……没有用)
There is no doing. (……不可能)
It is no good arguing with him. 和他争论没有用。
There is no knowing what may happen. = It is impossible to know what may happen.
1.(改错)As is known, learn a foreign language well requires great efforts.
2.(改错)Though flying balloons are easy, balloonists must watch the weather carefully.
3.(选择)_______ to sunlight for too much will do harm to one’s skin.
A. Exposed to B. Exposing C. Having exposed D. Being exposed
答案1.learn → learning 原形动词不能作主语。
2.are → is 单个动名词作主语,谓语用单数。
3.答案D。句义:遭太阳暴晒对皮肤有害。本题考查动名词作主语。分析 句子结构可知,待选项在句中作主语,又因为人与expose为被动关系,所以选D。
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