If we _________ the earth, we must take action before it is too late. A．will sav - 高中英语试题 - 超级试练试题库

题目

题型：不详难度：来源：

If we _________ the earth, we must take action before it is too late.

A．will save

B．are to save

C．are about to save

D．are saving

答案

解析

试题分析：原句意思是，如果我们要拯救地球，那么在太迟之前我们必须采取行动。be to do结构，在条件状语从句中用一般现在时表示将来，答案为B。
点评：解答此类题型要根据前后句的关系，来判断时态。be to do结构，在条件状语从句中用一般现在时表示将来。

核心考点

试题【If we _________ the earth, we must take action before it is too late. A．will sav】；主要考察你对一般现在时等知识点的理解。[详细]

举一反三

I’m sorry I didn’t hear what you said. I ________ the picture.

A．am looking at

B．looked at

C．has looked at

D．was looking at

题型：不详难度：| 查看答案

Kate _________ in America for many years, but she’d never regretted her decision to return to her motherland.

A．worked

B．was working

C．has worked

D．had worked

题型：不详难度：| 查看答案

Helen ________ her keys in the office so she had to wait until her husband ______ home.

A．has left; comes

B．left; had come

C．had left; came

D．had left; would come

题型：不详难度：| 查看答案

China sent up Shenzhou V manned spaceship into space successfully, which shows science and technology ___ rapidly in China.

A．have been developing

B．develops

C．is developing

D．has developed

题型：不详难度：| 查看答案

—That must have been a long trip.
—Yeah, it________us a whole week to get there.

A．takes

B．has taken

C．took

D．was taking

题型：不详难度：| 查看答案

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