(怀化专版)2017年中考英语命题研究 第一编 教材同步复习篇 第十七讲 九全 units 7-8(精讲)试题

prevent作动词，意为“阻止；阻挠；禁止”，后面可以直接跟宾语，prevent…from doing sth.意为“阻止……做某事”，相当于stop/keep…from doing sth.

【考点抢测】

16．他们认为这些石头会阻止疾病的发生并能保持人们的身体健康。

They think the stones can __prevent__ __illness__ and keep people healthy. 17．我们必须阻止这件事的发生。

We must __prevent__ it __from__ happening. 18．我们必须采取有效措施遏制交通事故的增长。

We must take effective measures to prevent traffic accidents __from__ __increasing__.

( C )19.(2016盐城中考)We must do everything we can________waste water from running into rivers. A．prevent B．preventing C．to prevent

There__must__be__something__visiting the homes in our neighborhood，but what is it？

肯定有某物在拜访我们小区的家庭，但是它是什么呢？

【满分点拨】

There be somebody/something doing sth.为固定句式，意为“有某人/某物在做某事”。 There are some boys playing soccer on the playground. 有一些男孩正在操场上踢足球。 【考点抢测】

( B )20.(2016恩施中考)—There are some boys________basketball over there. —Let's go and join them. A．are playing B．playing C．to play

( A )21.There is someone________in the room. A．talking B．talks C．is talking