外研版英语必修三Module 4 Sandstorms in Asia知识点课件33张

课件33张PPT。必修三　Module 4　Sandstorms in Asia1. strength n.力量;力气;长处;优势;强度
教材原句
①The Chinese Central Weather Station can forecast a sandstorm some weeks before it arrives in Beijing, but the????strength??? (strong) of the storm sometimes surprises people.重点单词◆用strong的正确形式填空
②The doctor advised Mary 　strongly???? that she should take a holiday, but it didn’t help.
③Practising Chinese kung fu cannot only build up one’s　strength????, but also develop one’s character.
④As a student in Senior Three, I must work hard. Meanwhile, I should take exercise to 　strengthen????my body.
⑤To make the members of a team perform better, the trainer first of all has to know their 　strengths???? and weaknesses.◆选词填空(strength/force/power/energy)
⑥You are always full of energy???. Can you tell me the secret?
⑦The force????of the explosion broke the windows of several buildings.
⑧Bungee jumping is an exciting activity, where courage matters more than　strength????.
⑨While Mr. Smith was the last man I wanted to see, I did all in my
????power???? to help him.点拨
(1)strong adj. 强大的;坚强的;坚固的
tall and strong 又高又壮 strongly adv.坚强地;强有力地
(2)strength n.力量;力气;长处;优势;强度
build up one’s strength 强身健体;养精蓄锐
strengths and weaknesses 优势和劣势;长处和短处
with all one’s strength 用尽某人全力
have strength to do sth.有力气做某事(3)strengthen vt.加强;巩固
strengthen our friendship 巩固我们的友谊
【辨析】2. concerned adj.关心的;担心的
教材原句
①I can’t help but feel very 　concerned????(concern).
◆单句填空
②(2016课标全国Ⅱ)Others are concerned about????using gardening methods that require less water and fewer fertilizers(肥料).
③I am writing to express my concern???(concerning)for the safety of children traveling on school buses, especially those on high-risk and highway-
speed routes.
④Making the right decisions　concerning????(concern)the future is proba-bly the most important thing we will ever do in our lives.
⑤As far as I 　am concerned????(concern), education is about learning and the more you learn, the more you will be equipped for life.
⑥　Concerned???? (concern) that he has no qualifications in business man-agement, Ken plans to gain the necessary skills by taking a part-time course.
⑦As pollution is becoming a public 　concern????, our government is de-termined to solve the problem.
点拨
(1)be concerned about/for对……担忧/担心
be concerned with 与……有关;涉及;对……感兴趣的
be concerned in sth.牵扯进某事
be concerned that...担心……
as far as...be concerned就……而言
(2)concern n.担心(的事) vt.使担心;涉及
(3)concerning prep.关于;涉及
3. urgent adj.紧急的;迫切的
教材原句
①What is the most ????urgent????(urge) problem of all?
◆单句填空
②Because of all this extra time there was no sense of 　urgency???? (urge) to do my schoolwork immediately.
③The board considered it urgent that those files 　(should) be printed????(print) right away.④After the flooding, people were suffering in that area, who 　urgently????(urge) needed clean water, medicine and shelter to survive.
⑤My parents always actively urge me 　to take????(take) advantage of the opportunity to join sports teams.
⑥It is 　urgent???? (urge) for us to protect the earth and make it a comfort-able place to live in.
⑦Environmentalists urged that more effective measures　(should) be adopted????(adopt) by the government to reduce pollution.点拨
(1)in urgent need of急需
(2)urge vt.催促;极力主张
urge sb. to do sth./into doing sth. 力劝/敦促某人做某事
urge(sb.)on鼓励;为……加油
urge+that从句　强烈要求;极力主张[从句谓语动词用(should+)动词原形]
(3)urgency n.紧急;紧急情况
urgently adv.迫切地,紧急地
4. complain v.抱怨;发牢骚;投诉
教材原句
①He does nothing but ????complain????(complain).
◆单句填空
②I mentioned that we were going to cross a mountain stream. The students began complaining about???? how cold it would be.
③You’d better stop 　complaining???? (complain) again and again. Other-wise, you’ll end up quarreling with Rose again.④“We wouldn’t have missed the train had we left earlier,” the wife complained 　to???? the husband.
⑤You can’t complain 　about???? being left out when you don’t make any effort to share your joys and sorrows with others.
⑥There are many such cases where consumer 　complaints???? (complain) have contributed to changes in the law.
⑦John complained to????the bookseller 　that???? there were several pages missing in the dictionary. 点拨
(1)complain to sb. about/of sth. 向某人抱怨/投诉某事
complain that 抱怨
(2)complaint n.抱怨;不满;投诉
make a complaint against对……投诉
eg.I believe you have a complaint against one of our nurses.
我认为你对我们的一位护士有怨言。1. cut down 砍倒;削减;缩小(尺寸、数量)
教材原句
①This is a process that happens when land becomes desert because of climate changes and because people cut ????down???? trees and dig up grass.
◆赏句猜义　写出下列句中cut down的含义。
②This article is too long;you have to cut it down to 1,000 words.　缩短????
③Immediate actions should be taken, like stopping cutting down trees, to better the environment.　砍倒????重点短语④Hunger, cold and illness cut down many of the villagers. 杀死????
◆单句填空
⑤He was in hospital for six months. He felt as if he was cut 　off???? from the outside world.
⑥I was just talking to Margaret when Jackson cut 　in????.
⑦He cut 　up???? the meat on his plate.
⑧They cut 　away???? all the dead branches from the tree. 点拨
cut down 削减,减低,缩减;杀死 cut in 插话;让某人分享利润
cut up切碎;齐根切掉 cut out删除
cut across穿过(某地)(尤指抄近路)
cut off切断;隔绝 cut sth. away切除, 剪去2. take in 吸收;欺骗;理解,领会;收留,收容;改小;包括,包含
教材原句
①Trees take ???? in???? carbon dioxide and give out oxygen.
◆赏句猜义　写出下列句中take in的含义。
②He was homeless,so we took him in.　收留????
③Don’t be taken in by his charming manners;he’s completely rude.
　欺骗????
④Fish take in oxygen through their gills.　吸收,摄入????⑤This dress needs to be taken in.　改小????
⑥Her lecture took in all the recent developments in the subject.
　包括,包含????
⑦I hope you’re taking in what I’m saying.　领会,理解????
◆单句填空
⑧After studying in a medical college for five years, Jane took 　up???? her job as a doctor in the countryside.⑨Throughout the week, the boy took 　over???? most of the work in the
Manager’s office.
⑩Chen Xiang’s singing career took 　off???? after his first album was re-leased.
?After the children put up the Christmas decorations, the whole room
took 　on???? a holiday appearance.点拨
take away拿走 take back取回;收回
take down取下来;拆掉;记下 take on雇用;呈现
take over接管 take up占据;开始做;从事
take off 脱下;起飞;腾飞3. give out 放出;发出;宣称;公布;发表;分发;用完;耗尽;停止运转
教材原句
①Trees take in carbon dioxide and give ???? out???? oxygen.
◆赏句猜义　写出下列句中give out的含义。
②After a month, their food supplies gave out.　用完????
③One of the plane’s engines gave out in mid-air.　停止运转????
④The news of the President’s death was given out on a radio broadcast.
????宣布????⑤The sun gives out light and heat. 发出,放出????
◆单句填空
⑥We spent half an hour looking for the tickets, but eventually gave up and went home.
⑦He said he wasn’t disappointed at the result of the final exam, but the look on his face gave himself 　away????.
⑧The operation gave him 　back???? the use of his legs.点拨
give away 捐赠;分发;颁发(奖品);泄露(秘密)
give back归还;使恢复
give in(to)屈服;交上
give off放出(烟、气味等)
give up 放弃【助记】1. appear to have done
教材原句
①Sandstorms in China appear ????to have increased????(increase) in recent years as a result of “desertification”.
◆完成句子
②From her look,she　appears to have known the truth????.
从她的表情看,她好像已经知道了真相。重点句型③They　appeared to be????satisfied with the result.
他们似乎对结果感到满意。
④He　appeared to be talking????to himself.
他仿佛在跟自己讲话。
◆句型转换
⑤It appeared that he had nothing to do but wait.
→He　appeared to have????nothing to do but wait.点拨
appear用作系动词,意为“似乎,好像”。在appear to have done结构中,不定式的完成式表示一个更早的动作,发生在主要动词所表示的动作之前。
appear+n./adj. 似乎,好像
appear+to do/to be doing/to have done sth.
似乎要做/正在做/已做过某事
It appears that...似乎……
There appears to be 似乎有……2. if possible
教材原句
①The garbage is then taken away and,????if ????possible,recycled.
◆完成句子
②Bob is addicted to playing computer games, seldom, if ever????(如果曾经有的话), listening carefully in class.
③There are only a few, if 　any????(如果有的话), foreign novels for us to read in this small library.④It sounds like something is wrong with the car’s tyre. If 　so????(如果是这样的话), we’d better take it to the garage immediately.
⑤Please donate money if 　possible????(如果可能的话), and many chil-dren in poor areas will be able to go back to school.
⑥My father suggests that I should take some notes if 　necessary????(如果有必要的话) while listening to the teachers in class.
⑦If the food tastes nice, I’ll go to buy some more;if 　not????(如果不是这样的话), I won’t go. 点拨
(1)在if、when、once、until、unless、while、as if等引导的状语从句中,如果主从句的主语一致,谓语动词中含有be动词,有时为了使句子简洁,可将主语和be动词省略。在被动语态中有时也采用这种省略结构。
(2)常见的if引导的省略句:
if any如果有的话
if necessary如果需要的话
if so如果是这样的话if ever如果曾经有的话
if not如果不这样的话
if possible如果可能的话