选择性必修 第三册Unit 6 Nature in words作业课件ppt

阅读P68－69教材课文，选择最佳答案。

1．Why did many people get puzzled and disturbed?

A．Because they didn't speak of birds again.

B．Because the feeding stations were destroyed.

C．Because most birds were gone.

D．Because birds voices were unusual.

2．What can we learn about Rachel Carson?

A．She was born in 1962.

B．She was a writer by profession.

C．She thought pesticides were harmful.

D．She used too many pesticides daily.

3．What caused a great increase in the awareness of protecting the environment?

A．Carson's research.

B．The fire­ant program.

C．The green movement.

D．Some gypsy moths.

4．Who supported Carson's research strongly?

A．Most writers.

B．Most scientists.

C．Most critics.

D．Most officials.

[答案]　1－4　CCAB

Words And Phrases

　dozen n./number 一打；许多

(教材P69)The book also gives dozens of other examples of eradication programmes that did nothing to reduce the problems they were originally designed to solve.

该书还列举了许多其他的实例来说明一些根除方案根本没有采取任何措施来减少它们原本要解决的问题。

[例1]　I'd like three dozen altogether.

我一共想要3打。

[例2]　Dozens of people have been injured and many vehicles set on fire.

很多人受了伤，很多汽车起火。

[造句]　他已在这儿住了24年。

He has lived here for two dozen years.

[即学即练]　单句语法填空

①On her birthday，she always receives cards by the dozen.

②Dozens(dozen)of miles of railway track have been torn up.

③If you buy a dozen of these tins，we can take 5 percent off the price.

[名师点津]

(1)与具体数字连用时，不加复数词尾­s；若后接名词，通常也无需用介词of。

(2)若不与具体数字连用，而是表示不确定的泛指数时，则不仅要加复数词尾­s，而且要后接介词of，然后才能接名词。如：

There were dozens of people there.那里有许多人。

(3)当与a few，several，many等数目不很具体的词或词组连用时，带不带复数词尾­s均可，但是注意：若不带复数词尾­s，其后的介词of可以省略；若带复数词尾­s，则其后介词of不能省略。如：

several dozens of eggs＝several dozen eggs 几打鸡蛋

(4)若其后的名词被the，these，those等特指限定词的修饰，或其后接的是us，them 等人称代词时，则此时必须用介词of。如：

a dozen of his friends 他的12个朋友

two dozen of them 它们中的24个

　precise adj.精确的；一丝不苟的

(教材P69)The 50 or so pages at the end of the book list Carson's sources，showing how thorough and precise she was as a scientist.

书的最后50页左右列出了卡森的资料来源，显示了她作为一名科学家是多么地缜密和一丝不苟。

[例1]　A lawyer needs a precise mind.

律师需要有缜密的思考能力。

[例2]　There were not many—five，to be precise.

数量不多——准确地说，只有五个。

[造句]　她给了我清晰而准确的指示。

She gave me clear and precise directions.

[即学即练]　单句语法填空

①The shelf is about a metre long—well，98 cm，to be(be)precise.

②The problem is due to discipline，or，more precisely(precise)，the lack of discipline，in schools.

③You have to be precise about the numbers.

[小片段填空]

Not only can a cell's motions be ①precisely controlled with the device，but it can also provide very ②precise measurements of a cell's position.

　ban vt.禁止，取缔n.禁令

(教材P69)Its impact was immediate and far­reaching: the use of DDT was banned and the Environmental Protection Agency (EPA)was established in the US.

它的巨大影响是立刻显现的和深远的：DDT的使用被禁止，环境保护署(EPA)在美国成立。

[例1]　Britain's health experts are pushing for a ban on all cigarette advertising.

英国的健康专家正努力争取取缔任何形式的香烟广告。

[例2]　Smoking is now banned in many places of work.

现在许多工作场所禁止吸烟。

[造句]　老师严禁他在课上讲话。

The teacher banned him from talking in class.

[即学即练]　单句语法填空

①Chemical weapons are banned(ban)internationally.

②They are banned from swimming(swim)in the river.

③There is a ban on/against smoking in all indoor public places.

④The new rule has put/placed smoking under a ban.

[名师点津]

“禁止某人做某事”的表达：

ban sb.from doing sth.

prohibit sb.from doing sth.

forbid sb.from doing sth.

forbid sb.to do sth.

　launch n．推出，发起；使(船)下水；发动；发射

(教材P69)Silent Spring was therefore regarded as a milestone in the launch of the green movement in the Western world.

因此，《寂静的春天》被认为是西方世界发起绿色运动的里程碑。

[例1]　The launch of their new machines in this factory received much media coverage.

这个工厂投产的新机器广获传媒报道。

[例2]　Are you at the launch of the new ship?

新船下水时你在场吗？

[造句]　我昨天看了火箭发射。

I saw the launch of the rocket yesterday.

[即学即练]　单句语法填空

①She launched into an explanation of how the machine worked.

②She's decided she has enough experience to launch out on her own.

③She is signing copies of her book at the official launch.

Sentence Pattern

　more...than...与其说……倒不如说……

(教材P69)Some also said that her work was more emotional than scientific.

一些人还说，她的工作更多的是情感上的，而不是科学上的。

句式分析：句中more...than...意思为“与其说……倒不如说……”；另外，此结构意思还可以是“比……多，比……更”。

[例1]　The book seems to be more a dictionary than one on grammar.

与其说这是本语法书，倒不如说是一本词典。

[例2]　It is more a lyric than a folk story.

与其说这是个民间故事，不如说是首抒情诗。

[造句]　众所周知，行动比语言更有力度。

As we all know，actions are more powerful than words.

[知识拓展]

[即学即练]　完成句子

①This book is not more difficult than that one.

这本书不如那本书难。

②He's no more able to read Spanish than I am.

他和我都不懂西班牙语。

③He is more than a writer; he is also a professor.

他不仅仅是位作家，还是一名教授。

[小片段填空]

She is ①more a producer than an actress in this film.And she had to do ②more than others，which makes her ③more than tired.

词义猜测题

词义猜测题主要考查考生猜测文章中某个生词、短语或词块的含义，或考查该词(块)能被哪个单词、短语或词块代替。此外，也会涉及某一个熟词在不同语境中的不同含义。

★解题关键

词义猜测主要是从“已知”得出“未知”，即利用上下文的已知部分(尤其是该词语前后的内容)进行推理，有时还需要依靠常识和经验来猜测。

★解题思路

Step 1：快速查找与猜测相关的信息句 (□中句)

Step 2：详读——作者在读“战争”部分时几次合上书，把书放到一边，之后不得不再次从头开始阅读。

Step 3：尝试解答——由信息句可判断出，句中画线的“get bogged down”指的是陷入困境，停滞不前，没有进展。与make no progress同义，故选D。

[针对性练习]

A

Education takes time.We could insist that everyone study full­time until the age of 45 but that would surely be too much.And perhaps half the population studying until they're 21 is also too much.As for universities，they consume financial and intellectual resources—perhaps those resources might be better spent elsewhere.

What's the meaning of the word“consume”？

A．Use.　　　　 B．Provide.

C．Delight.     D．Raise.

A　[词义猜测题。根据“Education takes time.”可知，教育要占用时间，再结合画线词后的“financial and intellectual resources”可知，大学占用大量财政和智力资源，由此可知画线词词义为“占用、使用”，故A项正确。]

B

But a year ago when my relationship with my wife and career took a hit，I needed my dad to pull back the curtain so I could see him as real and accessible.I was facing serious problems，and I wanted to know whether he had faced them before and how he had found his way，because I felt like I had lost mine.In desperation，it occurred to me that sending an email might be the key，so I wrote him one，telling him about my regrets and fears，and I asked him to answer，if he felt like it.

The underlined part can be best replaced by________．

A．draw the curtain

B．become more optimistic

C．show his true self

D．clear the misunderstanding

C　[词义猜测题。根据“But a year ago when my relationship with my wife and career took a hit，I needed my dad to pull back the curtain so I could see him as real and accessible.但一年前，当我与妻子和事业的关系受到打击时，我需要父亲拉开帷幕，让我看到他是真实的、平易近人的”，可推知，需要父亲拉开帷幕则意为“展示真实的自己”。故C选项正确。]

C

The global figures reveal that even the Americans put Britain to shame when it comes to taking exercise.Britain has one of the most sedentary populations on the earth，with almost twice the proportion of people defined as“inactive”as in neighboring France.In the UK，63.3 percent of the population fails to meet recommended levels of physical activity，increasing their risk of conditions such as heart disease，diabetes and cancer.By contrast，40.5 percent of US citizens are inactive，despite more than 30 percent of them being obese.

Which of the following is closest in meaning to the underlined word“sedentary”？

A．Proud.     B．Inactive.

C．Silent.     D．Energetic.

B　[根据画线词所在句的下半句“with almost twice the proportion of people defined as‘inactive’as in neighboring France”几乎是邻国法国被定义为‘不活跃’的人口比例的两倍”可知，英国是拥有地球上最不活跃的人口的国家之一。故划线词sedentary与inactive最接近。故B选项正确。]