高中英语Unit2CloningSectionⅢ练习新人教版选修8

时间：2025-07-12

Section Ⅲ— Grammar

课后篇巩固探究

一、单句改错

1.Do you know that of them will be our new headmaster?

2.I asked him that he had done it all himself or whether someone had helped him.

答案:t hat→whether

3.I am very interested in what he improved his English in such a short time.

答案:what→how

4.Why we need is more money.

答案:Why→What

5.The report what he was going to resign was false.

答案:what→that

6.There is no doubt whether Mr Smith will sign the contract with us.

答案:whether→that

7.I have no idea how we can do with these waste materials.

答案:how→what

二、把下面的句子改为含有同位语从句的复合句

1.We were cast down when we knew that our basketball team had been defeated.

答案:The fact that our basketball team had been defeated disappointed us.

2.They are arguing about whether we can clone human beings.

答案:They are having an argument whether we can clone human beings.

3.Everyone should believe that nature should never be destroyed.

答案:Everyone should have the belief that nature should never be destroyed.

4.She has promised to make experiments on cloning a monkey.

答案:She has made a promise that she will make experiments on cloning a monkey.

三、完成句子

1.He told me the news

(他所有的艰苦工作终于有了回报).

答案:that all his hard work had finally paid off

2.Some subjects, (例如数学和物

理),are very difficult to learn.

答案:such as maths and physics

3.The problem

(我们是否继续做这个实验)has been solved.

答案:whether we should continue to do the experiment

4. (故事是这样的)William Tell killed the King with an arrow.

答案:The story goes that

5.The suggestion

(在公共场所禁止吸烟) is necessary.

答案:that smoking should be forbidden in public places

6.We should consider the students’ request

(学校图书馆应该提供更多的图书) on popular science.

答案:that the school library provide more books

四、阅读理解

(2017·全国高考Ⅱ)

When a leafy plant is un der attack,it doesn’t sit quietly.Back in 1983,two scientists,Jack Schultz and Ian Baldwin,reported that young maple trees getting

bitten by insects send out a particular smell that neighboring plants can get.These chemicals come from the injured parts of the plant and seem to be an alarm.What the plants pump through the air is a mixture of chemicals known as volatile organic compounds,VOCs for short.

Scientists have found that all kinds of plants give out VOCs when being

attacked.It’s a plant’s way of cryi ng out.But is anyone

listening?Apparently.Because we can watch the neighbors react.

Some plants pump out smelly chemicals to keep insects away.But others do double duty.They pump out perfumes designed to attract different insects who are natural enemies to the attackers.Once they arrive,the tables are turned.The attacker who was lunching now becomes lunch.

In study after study,it appears that these chemical conversations help the neighbors.The damage is usually more serious on the first plant,but the

neighbors,relatively speaking,stay safer because they heard the alarm and knew what

to do.

Does this mean that plants talk to each other?Scientists don’t know.Maybe the

first plant just made a cry of pain or was sending a message to its own branches,and so,in effect,was talking to itself.Perhaps the neighbors just happened to “overhear” the cry.So information was exchanged,but it wasn’t a true,intentional back and forth.

Charles Darwin,over 150 years ago,imagined a world far busier,noisier and more intimate(亲密的) than the world we can see and hear.Our senses are weak.There’s a whole lot going on.

1.What does a plant do when it is under attack?

A.It makes noises.

B.It gets help from other plants.

C.It stands quietly.

D.It sends out certain chemicals.

答案:D

解析:细节理解题。根据第一段的“...send out a particular smell that neighboring plants can get.These chemicals come from the injured parts of the plant...”可知,当植物受到

袭击时,它们会释放出某种化学物质。因此D项正确。

2.What does the author mean by “the tables are turned” in paragraph 3?

A.The attackers get attacked.

B.The insects gather under the table.

C.The plants get ready to fight back.