13．It was after the Second War ________the United Nations was set up．（　　）
A．whenB．thatC．whatD．which

分析 是在第二次世界大戰(zhàn)之后聯(lián)合國被建立起來．

解答 答案是B．考查強(qiáng)調(diào)句，本句被強(qiáng)調(diào)部分是after the Second War，根據(jù)強(qiáng)調(diào)句的固定結(jié)構(gòu)It is/was+被強(qiáng)調(diào)部分+that+句子的剩余部分，可知答案是B．

點(diǎn)評 強(qiáng)調(diào)句是英語中的一個基本句型，也是考試的一個語法內(nèi)容，在英文中，句子的主語、賓語、狀語都可以以一種固定的句式表示對它的強(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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