答案

C

解析

倍數有三種表達法：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。

考點名稱：there be句型

there be句型的概念：

英語中的there be結構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為引導詞，無詞義，be為謂語動詞，therebe后面的名詞為句子主語。

therebe結構的否定式和疑問式：

1、否定式：

there be結構的否定式通常應將否定詞置于動詞be之后：

如：There is not any bread left. 沒有一點面包了。

There isn't anything I can do for you. 我幫不了你什么忙。

若謂語中包括有助動詞或情態動詞，通常將否定詞置于助動詞與情態動詞之后：

如：There can't be so many mistakes. 不可能有那么多錯誤。

There shouldn't be any doubt about it. 對此不應有什么懷疑。

There haven't been any parties in weeks. 好幾個禮拜沒開過晚會了。

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生什么困難。