Unit 4 Global warming.单元复习课件

课件33张PPT。Unit 4Global warming1．quantity n．量；数量in quantity＝in large amounts 大量地
a large/small quantity of 大/少量的
quantities of 大量；许多运用完成句子 (1)本学期你的作业在数量和质量上都有提高。
Your work has improved ____________________ and quality
this term.
(2)卡车上发现藏有大量的武器。
___________________ arms were discovered hidden in the
trucks.
(3)量变引起质变。
The changes of ___________ cause the changes of ________.in quantityQuantities ofquantity quality2．tend vi.趋向；易于；照顾vt.照顾；护理tend to do sth.易于/往往会做某事
tend to/towards sth.有……的趋势；倾向于……
tend to sb./sth.照料；照管
tendency n．倾向；趋势
have a tendency to do sth.有做某事的倾向/可能性运用完成句子 (1)处于压力下的人更容易发挥自己的全部潜能。
People under stress ____________ develop their full range of
potential.
(2)妈妈晚上总是忙于照顾我的妹妹。
Mom was always busy ________________ my younger sister
during the night.tend totending to3．oppose vt.反对；反抗；与(某人)较量；使对立
opposed adj.反对的；对立的
be opposed to 反对……(to 为介词)
同义短语：
disagree with/object to/be against sth.
反义短语：
agree with/be in favor of/be for sth.运用完成句子　　(1)热爱和平的人们都反对核武器。
　　People loving peace __________________________________
nuclear weapon.
　　(2)我们赞成她升为总裁。
　　We are ________________ her promotion to president.oppose/are opposed to/object to/are againstin favor ofv．变化；排列4．range n．种类；范围；山脉；行列；射程
a range of 一系列的
in/within the range of 在……范围内
out of the range of 超出……的范围
range from...to 从……到……之间变化
range between...and...在……到……之间变化运用完成句子 (1)这是一个带有一系列配件的电钻。
It's an electric drill with ____________ different attachments.
(2)我没有射中那只鸟，因为它不在我的枪的射程范围内。
I didn't fire the bird because it was ______________________
my gun.
(3)这个城市的温度变化在零摄氏度到 30 摄氏度之间。
The temperature of this city ranges _______ 0℃ _____ 30℃.
a range of out of the range of5．glance vi.看一下；瞥一眼；匆匆一看；扫视n．一瞥 glance at 看一眼；瞥一眼
glance over/through the newspaper 浏览报纸
at a glance 立刻；一眼；(只)看一眼
at first glance 乍一看；乍看之下
take/show/throw a glance (at sb./sth.)(朝某人/某物)一瞥；看
一眼运用完成句子 (1)他匆匆浏览了晨报然后出去了。
He ____________________________ the morning paper and
went out.
(2)我扫视了一下大厅，发现观众中有许多熟悉的面孔。
I ____________________ the hall and found many familiar
faces among the audience.
(3)他一眼就看出了问题所在。
He could tell ________________ what was wrong.glanced over/throughtook a glance atat a glance用所学单词及用法完成下列句子1．汤姆在学校的功课在平均水平以上。Tom's work at school is _________________________.2．这个组织已经存在 25 年了。The organization has been ________________ for 25 years.3．大部分参加比赛的学生都在 17 至 20 岁范围内。 Most of the students joining in the competition are
____________________ the age from 17 to 20.above the averagein existencein the range of4．老板陈述了他对该问题的见解。The boss _____________ his view on the subject.5．她扬长而去，都不朝我这儿看一眼。She walked off without a ________________ in my direction.6．拿这双鞋与那双比较后，我认为我更喜欢这双。After __________ this pair of shoes ________ that pair,I think I like this better.stated glancecomparing with1．come about 产生；发生；造成
come out 出来；出版；(花)开come into being (开始)出现；产生come across 偶然遇到或发现；被理解
come back 回来；重新流行；回想起来
come up 长出；走上来；被提出
come true (梦想、愿望)实现注意 come about＝happen＝take place，三者均无被动语态。运用完成句子 (1)他是怎么知道我们在什么地方的呢？
How did it ________________ that he knew where we were?
(2)花刚开始长出地面。
The flowers are just beginning to ________________.
(3)今天早上我在牛津大街偶然碰见一位老校友。
I ________________ an old schoolmate in Oxford Street this
morning.come aboutcome upcame across2．result in 导致；造成
result from...由……造成；因……而产生
as a result 结果
as a result of...由于……的结果
with the result that...其结果是……
without result 没有结果；白费运用完成句子(1)饱食常常会带来疾病。
Sickness often ________________ eating too much.
(2)事故导致三人死亡。
The accident ________________ three people being killed.results fromresulted in3．keep on doing sth.继续做某事(强调动作的反复性)
keep off 远离；不接近keep away from避开；离开keep back 不前进
keep out (of) 置身于(……之)外；不入
keep up 保持；继续；不低落
keep up with 赶上；跟上注意keep doing sth.意为“继续做某事”，表示不间断地持续干某事，强调动作的连续性。keep 后不能接不定式或表示
静止状态的动词，而必须接延续性动词。运用完成句子 (1)请你关上门不让噪音进来好吗？
Would you please close the door to ____________ the noise
____________？
(2)如果继续下雨，所有庄稼都会被毁掉的。
If it ____________________， all the crops will be ruined.
(3)他走得如此快，以致我不能跟上他。
He walked so fast that I couldn't ___________________ him.
(4)你最好远离我，我患重感冒了。
You'd better ____________________ me.I have a bad cold.keepoutkeeps on rainingkeep up withkeep away from用所学短语及用法完成下列句子
1．我很难忍受他的粗鲁。It is hard for me to ________________ his rudeness.2．你能告诉我你的父母不允许我们待在一起是怎么回事吗？Can you tell me how it ________________ that your parentsdon't allow us to stay together?3．这大体上是一个非常好的会议。It was a pretty good conference ________________.put up with comes abouton the whole4．只要我们有着公平的机会，我们就很可能赢得这场比赛。________________ we have fair opportunity, we are likely towin the match.5．她虽然疲劳但仍继续工作。She __________________ although she was tired.6．供给不足导致了价格飞涨。Inadequate supply ________________ the soaring price.As/So long askept on workingresulted in原句Some byproducts of this process are called“green-house” gases, the most important one of which is carbon
dioxide.这个升温过程的一些副产品就叫作“温室”气体，其中
最重要的一种是二氧化碳。
“...the most ＋ adj. ＋ one of ＋ which/who...” 意 为 “ 其 中
最……的之一……”。精练根据中文提示，完成下列句子 (1)这里有很多的动画片，其中最受欢迎的一部是《喜羊羊
与灰太狼》。
Here are many cartoons, _________________________ is
Happy Sheep and Gray Wolf.
(2)应采取有效措施防止生存环境进一步恶化，其中最重要
的措施之一就是限制过多的私家车的使用。
Some effective measures should be taken to keep our living
environment from getting worse, ___________________________
is to limit the use of private cars.the most popular one of whichthe most important one of which 运用所学语言基础知识，补充完整下面短文，并背诵之
(1)___________________ ( 与……相比) the last century, the
Earth's surface temperature has (2)________________ ( 上 升 了 )
about 1 degree centigrade today.(3)______________________ ( 事
实上), we may feel that we can hardly (4)________________ ( 忍
受) much too hot summers and we can't (5)________________ (习
惯于) warm winters.The rise of the Earth's surface temperature has
(6)________________________ ( 有 很 大 影 响 ) to human health,Compared to/withrisen byAs a matter of factput up withget used tomade much differencethe (7)______________ ( 生存) of creatures and the balance of the
environment.(8)__________________________ ( 条件允许的话),all countries in the world should spare no effort to improve ourenvironment.Without all people's (9)_________________ ( 共
同努力), what would our future be like?existenceConditions permittingjoint efforts利弊对比【实用套语】 1．Evidently, ...have both negative and positive aspects.On one
hand, ...On the other hand, ... 显然，……都有正反两面。一方
面，……另一方面，……2．Its advantage can be listed as follows.For one thing, ...Foranother, ...However, just as a popular saying goes, “every coin hastwo sides” ， ...is no exception, and in other words, it still has its
negative aspects.To begin with, ...In addition, ... 它的优点可以列
举如下：一方面，……另一方面，……然而，正如一句流行语
所说的：每个硬币都有两面，……也不例外，换句话说，它仍
有它不好的方面。首先，……另外，…… 3.Just as the old saying goes, there is no garden without weeds,
and so does...On the one hand, ...On the other hand, ...Through the
above analysis, I believe that the positive aspects overweigh thenegative ones.Therefore, I would like to...正如古语说的，没有一
个花园没有杂草，……也是这样。一方面，……另一方面，……
通过上面的分析，我相信积极的方面超过消极的方面，因此，
我愿意…… 4.Generally, its advantages can be seen as follows.
First, ...Second, ...But every coin has two sides.Obviously, it has
some disadvantages, one of which is that...To make things
worse, ...Form the comparison between these positive and negative
effects of...we know that its advantages far outweigh itsdisadvantages.Therefore, we should...大体来说，它的优点如下：
首先，……第二，……但是任何事物都有两面。明显地，它有
一些缺点，其中一个就是……更糟糕的是，……从这些……正
反两面的比较，我们知道它的优点远远超过它的缺点。因此，
我们应该…… 阅读下面短文，然后按照要求写一篇 150 词左右的英语短
文。Humanlifecannotcontinuewithoutscienceandtechnology.For many years, human society has developed with the
advance of science and technology while the development of
science and technology has in turn brought the progress to
mankind.So the life we are living now is more civilized than that of
our forefathers. Science is important to most people living in the modern
world.Science is important to world peace, to the understanding of
technology, and to our understanding of the natural world.Some areas
of science are especially interesting because they deal with questions
all men and women ask themselves.Science tries to provide some
explanations for what happens to people. Science is hard to study.One of the reasons is that there are so
many questions without answers.Much science involves asking
questions, and then studying and doing research to try to find the
answers.Some questions have been studied by research scientists for
many years, and the answers are still not known.However, scientists
are slowly but surely able to answer more and more questions about
life, and these answers change our lives and also explain them. All of the many different kinds of science are important and
interesting.Scientists are asking and answering many interesting
and important questions about people and their lives.A basic
knowledge of science can help you to understand both the
questions and the answers.In the modern world, this ability is
essential to everyone.[写作内容]1．以约 30 个词概括上文的主要内容；2．以约 120 个词就“科技给人们生活带来了什么”的主题发表看法，内容包括：(1)科技给人们带来许多好处；
(2)科技也给人们带来诸多麻烦；
(3)你的看法。[写作要求] 1．作文中可以使用实例或其他论述方法支持你的论点，也
可以参照阅读材料的内容，但不得直接引用原文中的句子；2．作文中不得出现真实姓名和学校名称。范文诵读： The author puts stress on the importance of science and
technology in this passage.Though they are difficult to study, many
scientists devote themselves to the research of science and
technology. On one hand, the development of science and technology has
brought about many changes in people's life.For example, we now
live comfortably and conveniently in houses furnished with air
conditioners, washing machines and televisions etc.And we can
travel long distances within hours by plane, train or car.Owing to
the invention of spaceship and rocket, the dream of man's landing
on the moon has now come true. On the other hand, science and technology have also brought
us much trouble.For example, because of the development of
industry, lots of the wastes from factories pour into the air and
rivers, causing pollution of all kinds. In my opinion, its advantages far outweigh its disadvantages.
As long as we use science and technology in a proper way and
avoid some problems, they may bring us even more benefits.