Today the forests are disappearing. We must _______ down too many trees.

A. prevent people to cut B. prevent people from cutting

C. prevent people for cutting D. prevent people at cutting

B 【解析】句意：今天，森林正在消失。我们必须防止人们砍伐过多的树木。prevent sb. from doing sth.阻止某人做某事，故答案选B。

He made a fire _______ himself _______ warm.

A. make; to keep B. to make; to keep

C. to make; keep D. make; keep

C 【解析】试题分析：句意：他生起了火来使自己保持暖和。根据句意及题干分析第一空应用不定式做目的状语；第二空“让某人做某事”是make sb. do sth.，所以此题选C。

There will be_________space for wildlife in the world．

A. fewer and fewer B. 1ess and less C. fewer and less D. 1ess and fewer

B 【解析】试题分析：句意：在世界上留给野生动物的空间将越来越少。形容词的比较级连用表示：越来越---；space是不可数名词，不能用few修饰。故选B。

English is very__ and all the students know the___ of the English Study.

A. important；importance B. importance；important

C. Importance；importance D. important；important

A 【解析】句意：英语很重要，所有的学生都知道英语学习的重要性。important重要的，形容词形式；importance重要性，为名词形式。very修饰形容词或副词，very important非常重要，the importance of……的重要性，故答案为A。

— Is Eric in the next room?

—Well，it’s hard to say. But I heard him _____loudly when I passed by just now.

A. sing B. to sing C. sang D. singing

D 【解析】试题分析：句意：--艾瑞克在隔壁房间吗？--哦，很难说，但是刚才我经过时我听到他在唱歌。hear sb do sth 听到某人做某事.暗示过程完成.hear sb doing sth 听到某人正在做某事.强调动作的进行.可能你听到的只是动作的一部分..结合句意，故选D

The film is one of _____that I have seen, I almost slept in the cinema.

A. the most interesting B. the least interesting

C. the most interested D. the less interesting

B 【解析】句意：这部电影是我看过的最没有趣的电影之一，我几乎在电影院里睡着了。interesting一般修饰物，interested一般修饰人，首先排除C；根据后面的句子“I almost slept in the cinema.” 几乎在电影院里睡着了，说明电影是看过的最没有趣的电影，the most interesting最有趣的；the least interesting最没有趣的。...

He_______ much food_______ the poor family during the hard time.

A. provided; to B. provides; with

C. provided; with D. provided; for

D 【解析】句意：在困难时期，他给那个贫穷的家庭提供了很多食物。根据时间状语during the hard time.可知此处用一般过去时，故排除B选项；根据短语provide sth. for sb.=provide sb. with sth.“向某人提供某物”。故答案选D。

The maths problem is not easy enough ___________

A. work out B. work it out

C. to work out D. to work it out

C 【解析】句意：这道数学题不容易计算出来。not + adj. /adv.+ enough to do sth.意思是“不够……不足以……，”排除A,B；The maths problem既是句子的主语同时又是work out的逻辑宾语，因此就不能再用it作宾语， 故答案为C。

My parents lent me the money. _______, I couldn’t pay for the trip.

A. And B. But C. Otherwise D. However

C 【解析】句意：我父母把钱借给了我。否则，我就付不起这次旅行的费用。A. And而且；B. But但是； C. Otherwise用作连词，意思为“否则，要不然”；D. However可是，然而，表示转折关系。结合句意可知，答案为C。

I have two rooms________，but I can’t decide________．

A. to live；to choose which one B. lived；choose which one

C. to live in；which one to choose D. live；which one

C 【解析】试题分析：句意：我有两个可住的房间，但我不能决定住哪一间。本题考查不定式作定语和疑问词+不定式作宾语。故选C。