Question

三道英语题目 说明理由 谢谢

1. You will see what great benefit the computers you own can be ______ every time we use them.
A. at B. of C. for D. on
2. Our parents and teachers often tell us that we ______ be careful enough no matter what we do.
A. mustn't B. shouldn't C. can't D. needn't
3. As is reported，women with demanding jobs are almost ______ to suffer a heart attack.
A. twice likely as B. as likely twice C. likely twice as D. twice as likely

Answer 1

1. You will see what great benefit (of) the computers you own can be / at every time we use them.

选择：A. at

解析：句子结构分析

* 主句：You will see你就会明白

* 宾语从句：what great benefit (of) the computers you own can be你拥有的电脑可能会有多么大的效益
其中——
--主语：the computers you own （you own是修饰主语的定语从句）
--系动词：can be
--表语：what great benefit

* 时间状语从句：at every time we use them每当我们使用他们的时候

2. Our parents and teachers often tell us that we ______ be careful enough no matter what we do.

选择： C. can't

解析：本句的意思是“我们的父母经常告诉我们，无论做什么，怎么细心都不过分”。

can't (或者can never) … enough) 是一种有特殊含义的结构，表示“越……越好”或者“无论怎样…也不过分”。例如：

* You can never be careful enough. 你越细心越好。
* We can't thank him enough. 我们无论怎样感谢他也不过分。

3. As is reported, women with demanding jobs are almost ______ to suffer a heart attack.

选择：D. twice as likely

解析：

1）be likely to是一个类似情态动词的短语，表示“有可能”，be likely to suffer a heart attack意思是“有可能患心脏病”。
2）表示倍数的twice 属于副词范畴，这里用来修饰形容词likely，只能放在likely前面。
3、as也是副词，twice as likely 是 twice as likely (as women with other jobs) 的省略，意思是“（患心脏病的可能）实际上相当两倍于（其他工作）”
参考译文：据报道说，从事费神费力工作的妇女患心脏病实际上几乎相当于两倍的可能性。

Answer 2

A.at every time,每一次。
C.can't:,再怎么样也不为过
A.倍数放前面，再加形容词。