高二英语人教版选修8学案课堂探究Unit3Inventorsandinventions—SectionⅠWord版含解析.doc

1、高二英语人教版选修8学案课堂探究Unit3InventorsandinventionsSectionWord版含解析课堂探究 1Here was a chance for me to distinguish myself by inventing something merciful that would catch snakes but not harm them.这回我有机会来表现一下自己了。我要发明某种仁慈的东西，既可以把蛇捉住，又不会伤害它们。主句以here开头，构成倒装句，以加强语气。考点：merciful adj.宽大的；仁慈的 They asked him to be merci

2、ful to the prisoners.他们要求他对犯人以慈悲为怀。阅读下列句子，指出画线单词的词性及词义 Deaths from the disease are mercifully rare.这种疾病很少造成死亡，算是不幸中之幸。词性：副词词义：幸运地，宽大地 Its a mercy_she wasnt hurt in the accident.幸运的是她在事故中未受伤。词性：名词词义：仁慈，宽容，幸运 This judge is merciless_towards anyone found guilty of murder.这位法官对罪名成立的谋杀犯概不留情。词性：形容词词义：不仁慈地

3、，不宽容地 考点延伸 阅读下列句子，指出与mercy搭配的短语及含义 They showed mercy to their enemies.他们对敌人很仁慈。短语：show_mercy_to_sb含义：对某人仁慈 She asked the judge to have mercy on her husband.她请求法官对她的丈夫开恩。短语：have_mercy_on_sb含义：对某人仁慈 They were lost at the sea，at the mercy of the d and weather.他们在海上迷了路，任凭风和天气的摆布。短语：at_the_mercy_of含义：任由摆

4、布，在掌握中 即学即用 语法填空 1）Antonio was _（mercy）that he even showed _（mercy）to Shylock.2）_（mercy），I managed to s the car just in time.3）They had little mercy_their enemy.4）They are absolutely _the mercy of providence.答案：1）merciful；mercy2）Mercifully3）on4）at 2I set about researching the habits of snakes to fin

5、d the easiest way to trap them.（于是）我着手研究蛇的习性，以便能找到最容易捉住它们的方法。不定式to find the easiest way作目的状语，to trap them作way的定语。考点：set about 开始；着手 I must set about my packing.我得着手收拾行李了。The moment we got to the little village，we set about doing research.一到那个小村庄，我们就开始了研究工作。归纳：set about接动词作宾语时，应接动词的­ing形式。阅读下面句子

6、，找出与set about同义的短语 He set out to conquer the literary world of London.他决心赢得伦敦文学界的赞誉。短语：set_out（to_do）考点延伸 阅读下列句子，指出与set搭配的短语及含义 Little Tom and his father set off for America last week，and arrived there this morning.小汤姆和他的爸爸上周动身去美国，并于今天上午到达那里。短语：set_off（for）含义：动身（去）A new government was set up after t

7、he war.新政府于战后成立。短语：set_up含义：建立 You had better set down your idea before you forget it.你最好把你的意见写下来，以免忘记。短语：set_down含义：写下 The film is set in France in the 1950s.这部电影以20世纪50年代的法国为背景。短语：be_set_in含义：以为背景 Its wise of people to set aside some money for urgent use.人们留出一部分钱以备急用是明智的。短语：set_aside含义：留出 即学即用 语法填

8、空 1）Lets set_our personal feelings for now，and get to our business.2）If he sets about _（do）what he wants to，nothing will s him.3）I dont know how to set _this job.4）She set _a new world record _the 100­metre race.5）We need to set _finding a solution.6）On receiving the assignment，we set _to work

9、at once.7）I have set _everything that hened.答案：1）aside2）doing3）about4）up；in5）about 6）out7）down 3Between the outside and the inside walls of the bowl there is some jelly，which freezes when cooled.在碗的内壁和外壁都抹上果冻，这些果冻冷却后会冻结。这里的when cooled 相当于when it（the jelly）is cooled。Though tired，they went on working.

10、虽然他们累了，但他们仍继续工作。将下列句子改为省略句 While I was waiting，I was reading some magazines._You shouldnt e to his party unless you were invited._He did as he had been told._Unless it is necessary，youd better not refer to the dictionary._答案：While waiting，I was reading some magazines.You shouldnt e to his party unle

11、ss invited.He did as told.Unless necessary，youd better not refer to the dictionary.归纳：当状语从句中的主语和主句的主语一致（或者是it），并且又含有be动词时，常可以省略从句中的主语和be动词，构成“连词分词”结构。可转化为此类结构的从句有：（1）as，before，till，once，when，while等引导的时间状语从句；（2）though，although，as，as if，as though等引导的让步状语从句；（3）if，unless（ifnot）等引导的条件状语从句；（4）as（so）.as，th

12、an引导的比较状语从句。即学即用 语法填空 1）If _（offer）help，one often says “thank you” or “its kind of you” 2）Dont be afraid of making mistakes when _（speak）English.完成句子 3）Ill help you _（如果可能的话） 4）_（一旦开始），the work cant be sped.答案：1）offered2）speaking3）if possible4）Once begun 4They abruptly diseared into a convenient hol

13、e in the wall.它们突然就消失在附近的墙洞里了。考点：convenient adj.便利的；方便的；就近的 Its useful to have a convenient supermarket.附近有超市实在方便。阅读下面的句子，归纳与convenient相关的句型 It is convenient for me to get to the railway station.我到火车站很便利。句型：It_is_convenient_for_sb_to_do_sth含义：某人干某事是方便的 A domestic shower is very convenient to operate

14、.家用淋浴器使用起来方便极了。句型：sth_is_convenient_for_sb含义：某事对某人来说是方便的 考点延伸 1）阅读下列句子，指出画线词的词性及词义 Its a great convenience to live in the town.住在城市里非常方便。词性：名词词义：方便，便利 Books carried conveniently contain a large amount of information.方便携带的书籍信息量大。词性：副词词义：方便地 2）阅读下列句子，指出画线短语的含义 e by to pick me up at_your_convenience.在你

15、方便的时候，来接我。归纳：at ones convenience意为“在某人方便时”。For the convenience of my mother I moved nearer to her home.为了我母亲方便，我搬去她附近住。归纳：for the convenience of sb意为“为了方便某人”。即学即用 语法填空 1）Can I e to ask for some advice at any time? Yes，of course._your convenience.2）We have provided seats_the convenience of our custom

16、ers.3）Please e to my home if it is _（convenience）for you.4）We bought this house for its _（convenience）；its very _（convenience）for the library.完成句子 5）你明天开始工作方便吗？ Will _start work tomorrow? 6）你会发现这种食物方便准备。Youll find the food _.答案：1）At2）for3）convenient4）convenience；convenient5）it be convenient for you

17、to6）convenient to prepare 5This was in the e_pectation that the snakes would bite again.这是因为我预料蛇还会再咬人。that the snakes would bite again是同位语从句。考点：e_pectation n预料；期待；期望 The dog wagged its tail in the e_pectation that it would get a bone.那只狗摇着尾巴，期望得到一根骨头。阅读下列句子，归纳与e_pectation搭配短语的含义 The children waited

18、patiently in e_pectation of the magician.孩子们耐心地等待着魔术师。归纳：in e_pectation of意为“期待；指望”。Paul has succeeded beyond our e_pectations.保罗取得的成就出乎我们的意料。归纳：beyond ones e_pectations意为“出乎某人意料”。Against all e_pectations，she was enjoying herself.完全没想到她过得非常快活。归纳：against e_pectations意为“与预期相反”。即学即用 语法填空 1）We thought J

19、ohn would do well，but he has succeeded _our e_pectations.2）He closed the dows _e_pectation of rain.3）I thought I could get the patent，but _e_pectations，I didnt.答案：1）beyond2）in3）against 6Pressed by my friends and relations，I decided to seize the opportunity to get recognition for my successful idea b

20、y sending my invention to the patent office.在朋友和亲戚的敦促下，我决定抓住这次机会把我的发明送到专利局去，以使我的成功的点子得到认证。Pressed by是过去分词短语作状语。Written in a hurry，the article is not so good.因为写得匆忙，这篇文章不是很好。考点：seize vt.抓住；捉住；夺 He seized a fish when he was swimming in the river.他在河里游泳时抓住了一条鱼。阅读下列句子，指出seize的含义 We should seize every op

21、portunity to develop the economy.我们应当善于抓住时机来发展经济。含义：抓住 They want to seize the murderer.他们想捉住凶手。含义：捉住 First，we must seize this position，and then we will station around the town.首先，我们必须夺取这个阵地，然后驻扎在城区周围。含义：夺取 考点延伸 1）阅读下面的句子，归纳与seize搭配的短语 The rumours were eagerly seized on/upon by the local press.当地报社迫不

22、及待地对这些传闻加以炒作。归纳：短语 seize_on/upon 意为“突然大为关注，抓住（可利用的事物）”。2）辨析seize和catch seize和catch都表示“抓住”，在笼统地说“抓住”时，这两个词可以换用。二者都可以用人作宾语，而且可用by短语表示抓住的部位。如：The thief was seized/caught.那个小偷被抓住了。I seized/caught him by the ear.我抓住了他的耳朵。在描写具体的“抓住”行为时，catch指经过追逐或一定的筹划后“抓住”；seize则指临时地、突然地“抓住”。如：He caught an enemy soldier

23、alive.他活捉了一个敌兵。Tom seized the reins of the horse.汤姆抓住了马的缰绳。即学即用 语法填空 1）_（seize）by the collar，Jane was dragged out of the vehicle by the tough guys and locked up in the dark room.完成句子，每空一词 2）His father asked him to _（抓住时机）to make some money.3）The critic _（抓住）my mistake and said I was ignorant.答案：1）Se

24、ized2）seize the chance/opportunity3）seized on/upon 7Only after you have had that recognition can you say that you are truly an inventor.只有你得到这种承认，你才可以说是一个真正的发明家。这是一个以only开头且倒装的主从复合句，can you say that you are truly an inventor是主句，after you have had that recognition 是时间状语从句。考点：only 状语 Only when you are

25、 forty and looking back will you realize that you havent done your best.只有当你四十岁回首往事的时候，你才意识到你并没有全力以赴。Only a week later did I receive an answer from her.一周之后，我才收到了她的回复。归纳：only修饰状语或状语从句在句首时，主句的主语和谓语要用部分倒装。Only Uncle Li knows how it hened.只有李叔叔知道这件事是怎么发生的。归纳：此句中only修饰主语，如果only修饰的不是状语，则句子不倒装。即学即用 完成句子 1

26、）Only after Mary read her position the second time _（她才注意到那个拼写错误） 2）Only after they had discussed the matter for several hours _（他们才作出一个决定） 答案：1）did she notice the spelling mistake2）did they reach a decision 8So I have filled in the form and filed my patent lication with the Patent Office.于是，我填了表，向专利局提交了申请书。考点：file n.文件；档案；文件夹vt.提交；将归档