依靠自己的生活常识和社会经验进行判断. ●歼灭难点训练 A For more than twenty years scientists have been searching for signs of life on other planets. Most of these searches have been done over the radio. The hope is that someone in outer space may be trying to get in touch with us. Scientists also have sent radio and television messages on spaceships traveling through space,on the chance that someone may be receptive to such messages. Scientists are using powerful radio telescopes to listen to signals from about 1 000 stars,all within 100 light years of Earth.In addition,they will scan the entire sky to “listen for radio messages from more distant stars. Using a computer, they will be able to monitor more than eight channels at one time. Scientists are looking for any signal that stands out from the background noise. Of the 200 billion stars in the Milky Way galaxy, scientists find that five percent are like our sun. Perhaps half of them have a planet like Earth. Such a planet would be a reasonable distance from the star for temperatures to be right for the evolution of life. Based on the inhabitable planets in our galaxy,most scientists agree that chances are likely that one or more of these planets support some life. However, many scientists wonder whether intelligent life exists on other planets.Some believe that twenty years of searching without any intelligible messages shows that no one is out there. They say that the evolution of intelligence comparable to ours is unlikely. Other scientists believe that our search hasn’t been long enough to rule out the possibility that intelligent life exists in our galaxy. Although our sun family is only about five billion years old, our galaxy is about 20 billion years old. In that time,some scientists think it is likely that civilization much more advanced than ours have developed. Perhaps these civilizations send us no signals; perhaps we have not recognized the signals they have sent us. If we hope to find intelligent life, these scientists believe that we have to keep looking. 查看更多

 

题目列表(包括答案和解析)

假定你们学校举行一个成人仪式,你将作为代表在仪式上发言。请你按以下内容要点准备一篇英文发言稿。
【写作内容】
1.过去对成年的向往:做自己喜欢做的事;
2.现在的感受:事情并非想象中那么顺利;
3.现在的认识:更多的自由但有更多的责任;
4.将来的目标:多为家庭和社会做贡献,使自己的生活更加有意义;
5.要采取的措施:努力学习考上理想的大学。
【写作要求】
只能使用5句子表达全部内容,开头和结尾已经写好,不计入总句数。
参考词汇:责任 responsibility
Good morning, everyone!
The topic of my speech today is “Thoughts on becoming a grown-up”.
_____________________________________________________________________________
Thank you for listening.

查看答案和解析>>

课文填空(共20空,每空0.5分,总分10分)

1.___________ her mother came to help her for the first few months _____ she _____ to begin her project.

她母亲头几个月来帮她的忙,这才使她得以开始自己的计划。

2.For forty years Jane Goodall has been _________ about making the rest of the world understand and _______ the life of these animals.

40年来,简·古道尔一直在呼吁世人了解并尊重这些动物的生活。

3.She has ______ that wild animals should be left in the wild and not used for ______________ or advertisements.

她主张应该让野生动物留在野外生活,而不能用于娱乐或广告。

4.___________ his research, the UN has more tools in the battle to _____ the world ______ hunger.

多亏了他的研究,联合国在消除世界饥饿的战斗中又多了些方法。

5.Yuan Longping is quite ________ with his life. However, he doesn’t care about ______________.

袁隆平很满意自己的生活。但他对自己的成名并不关心。

6.This ________ was a social _______ but was loved for his optimism and determination to ________ all difficulties.

这个角色是个社会中的失败者,但是他的乐观精神和战胜困难的决心使得他深受(观众的)喜爱。

7.Charlie Chaplin worte, _________, and produced the ilms he _________ in.

卓别林自编、自导、自制他主演的电影。

 

查看答案和解析>>

假定你们学校举行一个成人仪式,你将作为代表在仪式上发言。请你按以下内容要点准备一篇英文发言稿。

【写作内容】

1.过去对成年的向往:做自己喜欢做的事;

2.现在的感受:事情并非想象中那么顺利;

3.现在的认识:更多的自由但有更多的责任;

4.将来的目标:多为家庭和社会做贡献,使自己的生活更加有意义;

5.要采取的措施:努力学习考上理想的大学。

【写作要求】

只能使用5句子表达全部内容,开头和结尾已经写好,不计入总句数。

参考词汇:责任 responsibility

Good morning, everyone!

The topic of my speech today is “Thoughts on becoming a grown-up”.

_____________________________________________________________________________

Thank you for listening.

 

查看答案和解析>>

基础写作

假定你们学校举行一个成人仪式,你将作为代表在仪式上发言。请你按以下内容要点准备一篇英文发言稿。

[写作内容]

过去对成年的向往:做自己喜欢做的事;

现在的感受:事情并非想象中那么顺利;

现在的认识:更多的自由但有更多的责任;

将来的目标:多为家庭和社会做贡献,使自己的生活更加有意义;

要采取的措施:努力学习考上理想的大学。

[写作要求]

只能使用5句子表达全部内容,开头和结尾已经写好,不计入总句数。

参考词汇:责任 responsibility

Good morning, everyone!

The topic of my speech today is “Thoughts on becoming a grown-up”.

_________________________

Thank you for listening.

查看答案和解析>>

 课文填空

81.   _____ ______ her mother came to help her for the first few months _____ she _____ to begin her project.

她母亲头几个月来帮她的忙,这才使她得以开始自己的计划。

82.   For forty years Jane Goodall has been _________ about making the rest of the world understand and _______ the life of these animals.

40年来,简·古道尔一直在呼吁世人了解并尊重这些动物的生活。

83.   She has ______ that wild animals should be left in the wild and not used for ______________ or advertisements.

她主张应该让野生动物留在野外生活,而不能用于娱乐或广告。

84.   ______ _____ his research, the UN has more tools in the battle to _____ the world ______ hunger.

多亏了他的研究,联合国在消除世界饥饿的战斗中又多了些方法。

85.   Yuan Longping is quite ________ with his life. However, he doesn’t care about _______ _______.

袁隆平很满意自己的生活。但他对自己的成名并不关心。

86.   This ________ was a social _______ but was loved for his optimism and determination to ________ all difficulties.

这个角色是个社会中的失败者,但是他的乐观精神和战胜困难的决心使得他深受(观众的)喜爱。

87.   Charlie Chaplin worte, _________, and produced the ilms he _________ in.

卓别林自编、自导、自制他主演的电影。

查看答案和解析>>


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