5．It was not until dark           he found           was correct way to solve the problem．（　�。�
A．that； whatB．what； thatC．when； thatD．when； what

分析 直到天黑，他才發(fā)現(xiàn)這是一個(gè)正確的方法來(lái)解決這個(gè)問(wèn)題．

解答 A 考查強(qiáng)調(diào)句．第一空是not until 用于強(qiáng)調(diào)句，構(gòu)成it is not until…that""直到…才"，第一個(gè)空的答案是that．第二空he found ____ was the correct way to solve the problem．句中的主語(yǔ)和謂語(yǔ)分別是he，found，因此橫線(xiàn)上的詞要引導(dǎo)一個(gè)賓語(yǔ)從句．分析賓語(yǔ)從句的句子成分就會(huì)發(fā)現(xiàn)，賓語(yǔ)從句的主語(yǔ)缺失，只能用what來(lái)充當(dāng)主語(yǔ)，that在名詞性從句中不充當(dāng)成分．所以答案選A．

點(diǎn)評(píng) 強(qiáng)調(diào)句是英語(yǔ)中的一個(gè)基本句型，也是考試的一個(gè)語(yǔ)法內(nèi)容，在英文中，句子的主語(yǔ)、賓語(yǔ)、狀語(yǔ)都可以以一種固定的句式表示對(duì)它的強(qiáng)調(diào)．It is/was+被強(qiáng)調(diào)部分+that+句子的剩余部分，掌握固定結(jié)構(gòu)是做好強(qiáng)調(diào)句的關(guān)鍵．

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