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__________ it is true that a student’s most important goal is to do well in his or her studies, it doesn’t need to be the only goal.


  1. A.
    While
  2. B.
    As
  3. C.
    When
  4. D.
    Before
A
試題分析:考查連詞,A. as當(dāng)…時(shí)候B. until直到…C. while當(dāng)…時(shí)候D. when當(dāng)…時(shí)候,before主要引導(dǎo)時(shí)間狀語從句,意為“先于”“…之后才”“(不多久)就…”。當(dāng)主句是將來時(shí)時(shí),從句謂語動詞須用現(xiàn)在時(shí);當(dāng)主句是一般過去時(shí)或過去完成時(shí)時(shí),從句常用過去時(shí)。before引導(dǎo)的時(shí)間狀語從句不能用于否定式,when所引導(dǎo)的從句,其謂語動詞即可是持續(xù)動詞,也可是短暫動詞;謂語動詞動作發(fā)生的時(shí)間可以與主句謂語動詞的動作是同時(shí)、或之前、之后;while句中的謂語動詞是持續(xù)動詞,不用短暫動詞,位于動作發(fā)生的時(shí)間通常與主句謂語動詞動作發(fā)生時(shí)間是同時(shí);as側(cè)重指從句的動作與主句的動作同時(shí)進(jìn)行,謂語動詞可以是持續(xù)性動詞,也可以是短暫性動詞,所以選A
考點(diǎn):考查連詞
點(diǎn)評:連詞是高考常考內(nèi)容,本題不同的詞意思相同,但是它們有區(qū)別,要求考生掌握它們的區(qū)別
即學(xué)即練:He was about to make a call to Tom _____ Tom patted me on the shoulder.
A. as       B. until        C. while         D. when
選D
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A. obedient    B. responsible   C. co-operative   D. independent.

 

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