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1、as if從句中的動(dòng)詞時(shí)態(tài) as if = as though,其引導(dǎo)的方式狀語(yǔ)從句或表語(yǔ)從句中的動(dòng)詞時(shí)態(tài)，根據(jù)不同情況，使用不同的時(shí)態(tài)。 as if從句中的情況屬實(shí)或發(fā)生的可能性很大時(shí)，用。 It seems as if the design for the bridge is satisfactory. (The design for the bridge seems to be satisfing.) It looks as if it is going to rain. (It looks like rain.) as if從句中所設(shè)想的情況不是事實(shí)，應(yīng)用虛擬語(yǔ)氣。當(dāng)從句的動(dòng)作或狀態(tài)與

2、主句的動(dòng)作或狀態(tài)同時(shí)發(fā)生謂語(yǔ)用過去時(shí)。,He looks as if he were a poor man. In fact, he is very rich. She speaks French as if she were a Frenchwoman. I saw the teacher working hard as if she wished every student could go to a university. He raised his hand as if he wanted a taxi. as if從句的動(dòng)作發(fā)生在主句動(dòng)作之前，從句動(dòng)作用過去完成時(shí)。 He looks

3、 as if nothing had happened to him. His white hair in disorder looked as if he had been electrified.,主句中的動(dòng)作發(fā)生時(shí)，as if從句中假設(shè)的情況正在發(fā)生，從句動(dòng)作用過去進(jìn)行時(shí)。 His lips moved as if he was practicing speaking English. The sun is shining in the east as if it wasnt showering. as if從句中假設(shè)的動(dòng)作在主句動(dòng)作后發(fā)生，用過去將來時(shí)。 She talks and laughs as if she woul

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