來(lái)源:網(wǎng)絡(luò)資源 2023-07-08 21:11:39
時(shí)間狀語(yǔ)從句指用來(lái)表示時(shí)間,修飾主句的從句,時(shí)間狀語(yǔ)從句雖然引導(dǎo)詞數(shù)量不多,但最常見(jiàn)最易學(xué),最容易混淆,所以經(jīng)常成為考試考點(diǎn),本文總結(jié)了時(shí)間狀語(yǔ)使用時(shí)需要注意的幾個(gè)知識(shí)點(diǎn):
1.引導(dǎo)時(shí)間狀語(yǔ)從句的引導(dǎo)詞有:①表示某個(gè)時(shí)刻發(fā)生的動(dòng)作:when、while、as、once ②表示某個(gè)時(shí)刻之前發(fā)生的動(dòng)作:before、until
③表示某個(gè)時(shí)刻之后發(fā)生的動(dòng)作:after、since
2. when引導(dǎo)從句時(shí),主從句的動(dòng)作有先有后,也可以同時(shí)進(jìn)行,從句的動(dòng)作可以是持續(xù)性的,也可以是短暫的。
eg. When I go to the cinema, the movie had already started. (主先從后)(短暫性)
When I watched movie, I used to eat ice cream. (同時(shí)) (持續(xù)性)
When the movie ended, the people went back. (從先主后)
3. while側(cè)重主從句動(dòng)作的對(duì)比,且從句的動(dòng)詞必須是持續(xù)性的。
eg. While we were chatting she was reading comic.
4. as引導(dǎo)從句時(shí)側(cè)重主從句動(dòng)作同時(shí)或幾乎同時(shí)進(jìn)行,從句的動(dòng)作可以是持續(xù)性的,也可以是短暫的。
eg. Sometimes I watch TV as I am having breakfast.
5. 關(guān)于when的固定搭配:
①…was/were doing…when…(正在做…突然)
②…was/were about to do…when…(剛要做…突然)
③…was/were on the point of doing…when…(剛要做…突然)
④…had just done…when….(剛一…就)
⑤Hardly/Scarcely had…done…when…(剛一…就)
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