2021高考英語一輪復習Unit 20-Unit 20
提示:when引導時間狀語從句，其他三項與句意不符。答案：b辨析1.be known as,be known for,be known tobe known as...作為……而出名be known for...因為……而聞名be known to...為……所熟知即時練習:用as，for或to填空(1)he is well known ________ an expert on ent.(2)this place is well known ________ its hot springs.(3)as is known ________ all,the earth moves round the sun.(4)kunming is known ________ us ________ “spring city” ________ its pleasant climate.答案: (1)as (2)for (3)to (4)to,as,for2.so far,as far as,so far asso far “到目前為止”，常跟現在完成時連用。可置于句首、句中或句末。as far as＝so far as“直到；同樣的距離”。as far as 既可用于肯定句，亦可用于否定句，而so far as 僅用于否定句。也可表示“就……而言，至于”，兩者可互換。即時練習:(1) ________ we have learned english for six years.(2)your work has been good ________ this year.(3)we didn’t go ________ the others.(4) ________ i know he will be away for three months.(5)he will help you ________ he can.答案:(1)so far (2)so far (3)as/so far as (4)so/as far as (5)as far as誘思:實例點撥【例1】 (遼寧沈陽質量檢測) either tom or his friends ______,if only such kind accident will not happen.a.are blamed b.is blamedc.are to blame d.is to blame提示:either...or引導并列主句時，謂語動詞單復數遵循就近一致的原則。本題中謂語動詞應與his friends一致。答案：c【例2】 (福建模擬) —did jack come back early last night?—yes.it was not yet eight o’clock __________ he arrived home.a.before b.when c.that d.until提示:本題很容易誤選c項。實際上答語后半句是when引導的時間狀語從句，句意為:他回到家時還不到8點。答案:b講評:解此題時要注意區分強調句和其他句式:去掉it is/was,that，不影響句子獨立成句的是強調句型，否則，為其他句式。【例3】 (浙江模擬) my brother is an actor.he_________ in several films so far.