2013年高中英语 Unit 3 Beijing 2008>SectionC同步精品课件 重庆大学版必修5

课件31张PPT。Section C　Listening and Speaking，Writing，Further Reading 课堂互动探究预习多维感知写作专题突破Section C预习多维感知Ⅰ.词语翻译
1．at a higher/lower altitude ________________
2．keep...from... ________________
3．at the time of... ________________
4．block out ________________
答案：1.在高、低海拔　2.阻止；抑制　3.在……的时候　4.遮住；挡住Ⅱ.根据课文“Climate”完成短文
Climate，the 1.____________ weather for a place over many years，is different in different places.In fact，many factors have an effect on it，such as sunshine，temperature，and precipitation.2.____________ to mountains，oceans，and large lakes affects it too.Another factor is 3.____________，or height above sea level.Air 4.____________ as altitude increases.Finally，5.____________ affect climate，which can keep the tropics from overheating and the polar regions fromgetting overly cold.Climate changes over long periods of time.Onepossible cause may be changes in the 6.____________.Sunspots may decrease precipitation on the earth and cause unusually dry periods.Changes in the 7.____________ may change climate too.8.____________ activity is another cause of climate change.9.____________ pollution and the reduction of 10.____________ cover may have long-term effects on climate.答案：1.average　2.Nearness　3.altitude　4.cools
5．winds　6.sun　7.atmosphere　8.Human　9.Air　10.forest课堂互动探究1.affect...观察理解
1)The rise in prices will affect all classes.
2)Some plants are quickly affected by cold.
3)He was deeply affected by my words.
4)This disease affects millions of people in the world every year.归纳拓展
1)影响
2)感动，打动
3)(疾病)侵袭，感染现学现用
1)We are interested in the weather because it ________ us so directly－what we wear，what we do，and how we feel.
A．benefits B．guides
C．affects D．effects
解析：选C。句意：我们之所以对天气如此感兴趣，是因为它直接影响着我们——我们的穿戴、行为和感觉。benefit使受益；guide指导；affect影响；effect作动词时表示“产生，导致”。故C项符合句意。2.decrease
观察理解
1)In the last ten years cars have generally decreased in size.
2)The membership decreased to 150.
3)There has been a decrease in the annual birth rate for the last twenty years.归纳拓展
decrease to...减少到……
decrease by...减少了……
a decrease in...在……方面减少了
on the decrease...在减少现学现用
2)Over the past decades，sea ice ________ in the Arctic as a result of global warming.
A．had decreased
B．decreased
C．has been decreasing
D．is decreasing
解析：选C。考查动词的时态。从前面的Over the past decades可知，此处应用现在完成进行时，表示动作从过去一直持续到现在并将持续下去。3.in terms of
观察理解
1)In terms of customer satisfaction，the policy cannot be criticized.
2)What they have done is good for the environment in the long terms.
3)All of my roommates are on good terms with each other.归纳拓展
in the long/short term 就长期/短期而言
be on good/bad terms with sb. 与某人交情好/不好
come to terms(＝make terms) 达成协议；和好
in sb.’s terms 在某人看来，根据某人的观点现学现用
3)Tom is very young.But ________ working ability，he’s much more experienced than others.
A．in praise of
B．in face of
C．in need of
D．in terms of
解析：选D。句意：汤姆很年轻。但是在工作能力方面，他要比其他人有经验的多。in praise of赞扬；in face of面对；in need of需要；in terms of在……方面，就……而言。根据句意选D。4.keep...from...
观察理解
1)My parents kept me from going out at night.
2)Keep the surface free from/of dirt by putting a cover over it.
3)For some patients，medicine can keep them alive.
4)His funny jokes kept us laughing all through the meal.归纳拓展
keep...free from/of 使……免受(影响、伤害等)
keep sb./sth.＋adj./adv./prep. 使……保持……
keep sb./sth.＋doing 使……一直处于……
keep doing 持续做某事(强调不间断性)
keep on doing 继续做某事(强调反复性)现学现用
4)Something must be done to keep ________.
A．the boy to make noise
B．the boy making noise
C．the noise from making by the boy
D．the boy from making noise
解析：选D。句意：一定要想办法阻止那个男孩子吵闹。keep sb.from doing sth.“阻止某人做某事”，其中介词from不能省略。1.原句展示
A simple way of remembering the difference is that “climate” is what you expect(e.g.，cold winters)and “weather” is what you get(e.g.，a sandstorm)．(page 43)
记住这种区别的简单的方法就是“气候”是你所期待的(比如寒冷的冬季)，“天气”是你所经历的(比如沙尘暴)。句法简析
该句使用了what引导的表语从句，且what在从句中分别作expect和get的宾语。
1)This is what I want.
这就是我想要的。
2)Xiao Li is no longer what he used to be.
小李不再是以前的样子了。
3)Action，not talk was what she graded her students on.
她划分学生程度的依据不是学生的言词，而是学生的行为。现学现用
1)(2011年高考陕西卷)I’d like to start my own business－that’s ________ I’d do if I had the money.
A．why B．when
C．which D．what
解析：选D。考查表语从句。句意：我想自己做生意——那是我如果有钱就会做的事情。从句中的do是及物动词，缺少宾语，所以将A和B排除，这两个选项在从句中常常作状语。which引导名词性从句时，意为“哪个，哪些”，一般用于有一定范围可供选择的情况。不合逻辑，故用what。2.原句展示
...and in no two places in the world is it exactly the same.(page 43)
……而且世界上没有哪两个地方的气候是完全一样的。句法简析
这是一个部分倒装句。具有否定意义的副词或短语如never，nor，neither，seldom，little，not，hardly，scarcely，not only，no sooner，in no case等置于句首时，句子应采用部分倒装结构。
1)In no way can we allow this to go on.
我们绝不允许这样的事再继续下去了。
2)Never before have I seen such a moving film.
我以前从未看过这么感人的电影。
3)Hardly had he begun to speak when his father stopped him.
他刚一开始说话他父亲就制止了他。现学现用
2)(2011年高考福建卷)—It’s nice.Never before ________ such a special drink!
—I’m glad you like it.
A．I have had B．I had
C．have I had D．had I
解析：选C。考查时态及倒装。never是否定副词，置于句首，句子要部分倒装；由语意可知说话人以前从未喝过这样特别的饮料，应该用现在完成时，故选C项。写作专题突破便条
【策略探究】
便条是为了临时通知或转告某事而写的一种简单的书信，如请假、留言、与人约会、转告电话以及非正式邀请等。便条多用于熟人之间。一般写在纸上，不用信封。内容单纯，格式简单。主要包括称呼、正文、署名、日期等。【典例展示】
假设你叫李文，住在某海滨城市，你接到朋友刘娜写来的英文信，约你下周六一起去海滨公园郊游。现在你写封回信，说明你不能接受邀请，因为你已答应那天到乡下去看望一位朋友，并表示歉意。
注意：1.词数100左右；
2．文章的开头和结尾已给出，但不计入总词数。【联想词汇】
1．郊游，远足　________________
2．离开　________________
3．很遗憾地说……　________________
4．许诺做某事　________________
5．玩得痛快　________________
答案：1.outing　2.get away　3.sorry to say that...
4．promise to do...　5.have a good time【由词连句】
1．我已经许诺去看望一个朋友。
I ____________________________ see a friend.
答案：have already promised to
2．我希望你们玩得愉快！
I wish all of you would ________________________！
答案：have a good time【范文借鉴】
Friday
Dear Liu Na，
It is very kind of you to propose a day’s outing in the Seashore Park.I only wish I could join you，because I consider staying with good friends is the most exciting thing in the world，but I’m sorry to say I shall not be able to get away，as I have already promised to see a friend in the countryside next Saturday.I wish all of you would have a good time.Thank you all the same.
Yours，
Li Wen【精彩再现】
写便条时应注意以下几点：
1．称呼比较随便，不必像信件那样正规，可直呼其名。同书信一样，称呼应写在正文的左上角。
2．正文要求简单扼要，往往只需两三句话说明情况即可。
3．署名写在右下角。通常省去书信中结尾客套话部分，只留姓名。
4．便条日期一般写在右上角略高于称呼的位置。通常不必写年、月，只写日期或星期几、上(下)午或几点钟。