随堂演练
必修3-Unit 4
Ⅰ.单词拼写
1．Their education ________ (体系) was perfect.
2．I hope you will recover soon under this enjoyable ______(气候)．
3．He felt ________(鼓励)by the progress he had made.
4．The manager doesn't ________(允许)us to use the computer.
5．The news that they were defeated ________(传遍)to the capital.
6．Tornadoes are ________ (猛烈的)whirlwinds which vary in their width from a few yards to 1,300 feet.
7．The small boat was ________(漂浮)on the surface of the water.
8．A great ________(块)of rock had fallen from the cliff and now blocked the road.
9．From these observations we conclude that the moon has little or no ________(大气层)．
10．These kittens look exactly ________(一样的). Can you tell them apart?
答案
1．system 2.climate 3.encouraged 4.allow 5.spread
6．violent 7.floating 8.block 9.atmosphere 10.alike
Ⅱ.用所给词的适当形式填空
1．She is a very ________ (religion) person who goes to church every Sunday.
2．This kind of plants has been in ________ (exist) for millions of years.
3．I've been ________ (puzzle) over all the figures, trying to find what happened to the missing money.
4．We live in a ________ (globe) village, but this doesn't mean that we all behave in the same way.
5．Last night we had a discussion, which became more and more violent. Finally we reached an agreement that we will never use ________ (violent) whatever happens.
6．Reading in the sun is ________ (harm) to your eyes.
7．The wind is blowing ________ (gentle)．
8．It was my friends who gave me a great deal of __________ (encourage)．
9．The desertification accounted for good farmland's ________ (disappear)．
10．Her teacher pointed out her mistake with __________ (patient)．
答案
1．religious 2.existence 3.puzzling 4.global 5.violence
6．harmful 7.gently 8.encouragement 9.disappearance
10．patience
Ⅲ.单句语法填空
1．The boy was lucky enough to escape ________ ( punish) by telling a lie.
2．Over the past five years Tom ________ (go) through a lot of hardships.
3．Cheer ________， and you can pass the exam.
4．He described the three ways ________ the problem could be solved.
5．He got the hang ________ the new theory in no time.
6．They gave birth ________ their young and feed them on their milk.
7．Tom got up late, thus ________ (miss) the early bus.
8．The fire broke ________ at midnight.
9．The fireworks exploded ________ all directions.
10．This garden is three times ________ big as that one.
答案与解析
1．being punished escape 后跟动名词作宾语，该处表示被动含义，故用 being done。
2．has gone over the past five years 与现在完成时连用。
3．up cheer up 振作起来。
4．that 先行词为 the way, 定语从句用 that 引导。
5．of get the hang of 精通……。
6．to give birth to 出生，生下……。
7．missing thus 后跟现在分词作结果状语。
8．out break out 爆发。
9．in in all directions 朝四面八方。
10．as 倍数的表达法为：倍数＋as＋形容词的原级＋as。
Ⅳ.课文语法填空
The earth was just a cloud of __1__ (dusty) after the “Big Bang”. The earth exploded loudly with fire and rock. They were __2__ time to produce many things, __3__ were to make the earth's atmosphere. As the earth cooled __4__， water began to appear on its surface. It allowed the earth to dissolve __5__ (harm) gases. Then life began to develop.
The first small plants multiplied and filled the oceans and seas with oxygen. This encouraged the later __6__ (develop) of early shellfish and fish. Land animals such as insects, reptiles and dinosaurs and so on appeared after green plant appeared. Small clever animals __7__ (spread) all over the earth. They are putting too much carbon dioxide into the atmosphere, which prevents heat escaping __8__ the earth into space. __9__ life will continue on the earth for millions of years to come will depend __10__ whether this problem can be solved.
答案
1．dust 2.in 3.which 4.down 5.harmful
6．development 7.spread 8.from 9.Whether 10.on