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[理工类英语] 2012年职称英语《理工类》语法讲解一

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发表于 2012-8-16 00:07:50 | 显示全部楼层 |阅读模式
常见的强调句结构是it 引导的句子。
7 @. ~, r' S# e0 m+ {It is (was) 被强调部分+ that (who) + 句子其他部分。5 B$ e5 I5 G* D- P& ]
此结构强调的成分仅限于主语,宾语和状语。
5 [& N) G) L7 w1 v( L' @It is from the sun that we get light and heat./ Q) M7 D; c1 z: B
It was not until I had read your letter that I understood the true state of affairs.
& U  R: I+ S0 @( j# K5 s使用此句型时, 应注意以下几点。$ c, E3 l& Y6 l* H. b  C. x
(1) 一般情况用It is(was)……that…如:8 x9 T+ T! o) J  }  S2 J& d
He read three books in the library yesterday." R/ ^- z: \$ O+ u  G
我们分别可以强调主语、宾语、地点状语和时间状语。如:  Q( i) e- H, ]; ^  w0 J6 p
It was he who(that)read three books in the library yesterday. (强调主语)' g9 y( N! E" r- }6 ~& o$ ^7 P
It was three books that he read in the library yesterday. (强调宾语)
% l" I- M/ ~& \- ?It was in the library that he read three books yesterday. (强调时间状语)
1 V. t/ w' h1 r/ v. C4 t(2) 当被强调部分指人时, 可用that, 也可用who; 指物时, 只用that, 如:
6 g* i, H* \( ?* N. PIt was Tom who(that)I met last week.
7 J' g7 X1 q2 Q4 V, H: H. Z2 N( e& qIt is a new boke that his brother wants to buy.
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