14．-Was it because of his laziness_______ he didn't do the experiment successfully？
-No，it was because of his carelessness．（　�。�
A．thatB．whileC．forD．as

分析 --是因?yàn)樗膽卸鑼?dǎo)致他沒有成功做成實(shí)驗(yàn)？
--不，是因?yàn)樗拇中模?/p>

解答 答案：A
此題考查強(qiáng)調(diào)句的一般疑問句．其結(jié)構(gòu)是：Is/Was+it+被強(qiáng)調(diào)部分+that/who+句子剩余部分？強(qiáng)調(diào)人時，用who，其它用that．此處強(qiáng)調(diào)原因．故選A項(xiàng)．

點(diǎn)評 記住強(qiáng)調(diào)句結(jié)構(gòu)："It is/was+被強(qiáng)調(diào)部分+that/who+句子剩余部分．強(qiáng)調(diào)人時，用who，其它都用that．其一般疑問句是Is/Was+it+被強(qiáng)調(diào)部分+that/who+句子剩余部分？特殊疑問句是：特殊疑問詞+is/was+it+被強(qiáng)調(diào)部分+that/who+句子剩余部分？"做此類題目就很簡單了．

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