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答案

C

解析

倍數(shù)有三種表達(dá)法：⑴A is three times bigger than B⑵A is three times the size of B⑶A is three times as big as B。這符合第二種。

考點(diǎn)名稱：there be句型

there be句型的概念：

英語中的there be結(jié)構(gòu)主要表示某處存在有某物，所以通常被稱為存在句。其中的there為引導(dǎo)詞，無詞義，be為謂語動(dòng)詞，therebe后面的名詞為句子主語。

therebe結(jié)構(gòu)的否定式和疑問式：

1、否定式：

there be結(jié)構(gòu)的否定式通常應(yīng)將否定詞置于動(dòng)詞be之后：

如：There is not any bread left. 沒有一點(diǎn)面包了。

There isn't anything I can do for you. 我?guī)筒涣四闶裁疵Α?/p>

若謂語中包括有助動(dòng)詞或情態(tài)動(dòng)詞，通常將否定詞置于助動(dòng)詞與情態(tài)動(dòng)詞之后：

如：There can't be so many mistakes. 不可能有那么多錯(cuò)誤。

There shouldn't be any doubt about it. 對(duì)此不應(yīng)有什么懷疑。

There haven't been any parties in weeks. 好幾個(gè)禮拜沒開過晚會(huì)了。

另外注意以下類型的否定式：

如：There doesn't seem to have been any difficulty over the money question. 在錢的問題上似乎沒發(fā)生什么困難。