题目内容 (请给出正确答案)
[主观题]

听力原文: Can you image ice that does not melt and...

听力原文: Can you image ice that does not melt and is not wet? Have you ever heard of dry ice? Dry ice is made by freezing a gas. It is quite different from ordinary ice which is simply frozen water. Dry ice was first manufactured in 1925. It has since fulfilled the hopes of its adventure. It can be used for making artificial fog in the movies. When steam is passed over dry ice, a very dense vapor rise. It can also be used for destroying insects in grain supplies. It is more practical than ordinary ice because it takes up less space and it's 142c colder. Since it turns into steam instead of melting into water, it is cleaner to use. For these masons, it is extremely popular, and many people prefer it to ordinary ice. Dry ice is so cold that ff you touch it with you bare fingers, it will burn you.

(26)

A.Chemicals.

B.Water.

C.Gas.

D.Vapor.

查看答案
如搜索结果不匹配,请 联系老师 获取答案
您可能会需要:
您的账号:,可能会需要:
您的账号:
发送账号密码至手机
发送
更多“听力原文: Can you image ice that d…”相关的问题

第1题

听力原文: Can you image ice that does not melt and is not wet? Have you ever heard of dry ice? Dry ice is made by freezing a gas. It is quite different from ordinary ice which is simply frozen water. Dry ice was first manufactured in 1925. It has since fulfilled the hopes of its adventure. It can be used for making artificial fog in the movies. When steam is passed over dry ice, a very dense vapor rise. It can also be used for destroying insects in grain supplies. It is more practical than ordinary ice because it takes up less space and it's 142c colder. Since it turns into steam instead of melting into water, it is cleaner to use. For these masons, it is extremely popular, and many people prefer it to ordinary ice. Dry ice is so cold that ff you touch it with you bare fingers, it will burn you.

(26)

A.Chemicals.

B.Water.

C.Gas.

D.Vapor.

点击查看答案

第2题

Can you imagine that ice does not melt and is not wet? Have you ever heard of dry ice? Dry ice is made by freezing a gas. It is quite different from ordinary ice which is simply frozen water. Dry ice was first manufactured in 1925. It has since fulfilled the hopes of its inventor. It can be used for making artificial fog in the movies. When steam is passed over dry ice, a very dense vapor rises. It can also be used for destroying insects in grain supplies. It is more practical than ordinary ice because it takes up less space and it is 142 degrees colder. Since it turns into stream, instead of melting into water, it is cleaner to use. For these masons, it is extremely popular and many people prefer it to ordinary ice. Dry ice is so cold that if you touch it with your bare fingers, it will burn you.

Dry Ice

Time of invention:【46】

Uses: to make【47】in the movies;

to destroy【48】

Advantages over ordinary ice: takes【49】be【50】

点击查看答案

第3题

听力原文:Can you help me?

(13)

A.I'm afraid not.

B.That's all right.

C.You're welcome.

点击查看答案

第4题

听力原文:M: Does this bus go to the Oxford Street?

W: I am afraid not. But you can get off at the brink and take No. 19 bus to get there.

Where is the man going?

A.TO the bank.

B.To the hotel.

C.To Oxford street.

点击查看答案

第5题

听力原文:You can't pick up your film today because it is not developed yet, and since we're closed tomorrow, the earliest you can get it is Friday.

(27)

A.You can pick up your film in two days.

B.You can get your film tomorrow.

C.Your film is going to be ready soon; you can get it right now or tomorrow.

D.You can pick up your film either today or tomorrow.

点击查看答案

第6题

听力原文: Why do we cry? Can you imagine life without tears? Not only do tears keep your eyes lubricated, they also contain a substance that kills certain bacteria so they can't infect your eyes. Give up your tears, and you'll lose this on-the-spot defense. Nobody wants to give up the flood of extra tears you produce when you get something physical or chemical in your eyes. Tears are very good at washing this irritating stuff out. Another thing you couldn't do without your tears is cry from joy, anger or sadness. Humans are the only animals that produce tears in response to emotions, and most people say a good cry makes them feel better. Many scientists, therefore, believe that crying somehow helps us cope with emotional situations. Tear researcher, Winifred, is trying to figure out how it happens. One possibility he says is that tears discharge certain chemicals from your body, chemicals that build up during stress. When people talk about crying it out, "I think that might actually be what they are doing", he says. If Fred is right, what do you think will happen to people who restrain their tears? Boys, for example ,cry only about a quarter as often as girls once they reach teenage years, and we all cry a lot less now than we did as babies. Could it possibly be that we face less stress? Maybe we found another ways to deal with it, or maybe we just feel embarrassed.

What's the topic discussed in this passage?

A.Why people hold back their tears.

B.Why people cry.

C.How to restrain one's tears.

D.How tears are produced.

点击查看答案

第7题

听力原文: Why do we cry? Can you imagine life without tears? Not only do tears keep your eyes lubricated, they also contain a substance that kills certain bacteria so they can't infect your eye. Give up your tears, and you'll lose this onthespot defense. Nobody wants to give up the flood of extra tears you produce when you get something physical or chemical in your eyes. Tears are very good at washing this irritating stuff out. Another thing you couldn't do without your tears is cry from joy, anger or sadness. Humans are the only animals that produce tears in response to emotions, and most people say a good cry makes them feel better. Many scientists, therefore, believe that crying somehow helps us cope with emotional situations. Tear researcher, Winifred, is trying to figure out how it hap pens. One possibility he says is that tears discharge certain chemicals from your body, chemicals that build up during stress. When people talk about crying it out, "I think that might actually be what they are doing", he says. If Fred is right, what do you think will. happen to people who restrain their tears? Boys, for example, cry only about a quarter as often as girls once they reach teenage years, and we all cry a lot less now than we did as babies. Could it possibly be that we face less stress? Maybe we found another ways to deal with it, or maybe we just feel embarrassed.

(33)

A.Why people hold back their team.

B.Why people cry.

C.How to restrain one's mars.

D.How tears are produced.

点击查看答案

第8题

Section D

听力原文: There can be (21) hardly anyone who has not heard of yoga, and, whether you are 16 or 60, you can reap the (22) benefits of taking it up as a hobby. Yoga was (23) developed by Hinduism and is a system of training the body and the mind. Its goal is to make it easier for people to remove all (24) distractions which hinder reaching that state of mind and body by which they can live a life of the spirit in union with their maker. Reaching this state is (25) considerably more difficult than might be imagined. For this reason, the training is (26) divided into stages, which become gradually harder and harder.

The aim of taking part in the physical training is to bring the body under (27) complete control in such areas as the regulation of breathing and the (28) flexibility of muscles, both of which play an important part in controlling our overall movements. The stress of mental training, as well as physical body (29) behaviour, make undisturbed concentration possible. Anyone trained in this way is called a yogi. So what are we waiting for? Maybe it's time we all headed for the nearest yoga class and started (30) training now!

There can be【21】anyone who has not heard of yoga, and, whether you are 16 or 60, you can reap the【22】of taking it up as a hobby. Yoga has been【23】by Hinduism and is a system of training the body and the mind. Its goal is to make it easier for people to remove all【24】which hinder reaching that state of mind and body by which they can live a life of the spirit in union with their maker. Reaching this state is【25】more difficult than might be imagined. For this reason, the training is【26】into stages, which become gradually harder and harder.

The aim of taking part in the physical training is to bring the body under【27】control in such areas as the regulation of breathing and the【28】of muscles, both of which play an important part in controlling our overall movements. The stress of mental training, as well as physical body【29】, make undisturbed concentration possible. Anyone trained in this way is called a yogi. So what are we waiting for? Maybe it's time we all headed for the nearest yoga class and started【30】now!

(21)

点击查看答案

第9题

听力原文: Did you know that there's a kind of bird that can sew? This bird, called the tailor bird, uses its mouth as a needle. It sews leaves together in the shape of a cup. Then it adds a layer of straw to the inside of the cup and lays its eggs there.

Each bird species builds its own special kind of nest. The most common materials used for nests are grasses, branches and feathers. A bird must weave these materials into a nest. Just imagine building a house without cement or nails to hold together.

Another bird is called the weaver bird. 'The weaver bird builds a nest that looks like a basket. The nest is shaped like a pear with a hole in the middle. The hole is the door of the nest.

A third bird is called the oven bird. The oven bird makes a nest that is very solid. The nest is made of mud. The oven bird forms the mud into the shape of an oven and then let it dry in the sun. The sun bakes. the mud, making it very hard.

Not all birds make their homes in branches. Some birds build their nests on the ground, while others bury their eggs under the ground. And some birds do not build nests at all.

So when you look for nests and eggs in the branches of the trees and bushes, remember, that some nests may be right trader your feet.

(26)

A.A cup.

B.An oven.

C.An egg.

D.A basket.

点击查看答案

第10题

听力原文:This store is really expensive.

(A) That's not a real one.

(B) You can store it here.

(C) Why don't you check the one next to the pharmacy?

(38)

A.

B.

C.

点击查看答案
热门考试 全部 >
相关试卷 全部 >
账号:
你好,尊敬的上学吧用户
发送账号至手机
获取验证码
发送
温馨提示
该问题答案仅针对搜题卡用户开放,请点击购买搜题卡。
马上购买搜题卡
我已购买搜题卡, 登录账号 继续查看答案
重置密码
确认修改
谢谢您的反馈

您认为本题答案有误,我们将认真、仔细核查,
如果您知道正确答案,欢迎您来纠错

警告:系统检测到您的账号存在安全风险

为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!

微信搜一搜
上学吧
点击打开微信
警告:系统检测到您的账号存在安全风险
抱歉,您的账号因涉嫌违反上学吧购买须知被冻结。您可在“上学吧”微信公众号中的“官网服务”-“账号解封申请”申请解封,或联系客服
微信搜一搜
上学吧
点击打开微信