Unit10Theworldaroundus课文重难点解析

1、Unit 10 The world around us 课文重难点解析1 Experts tell us that we need to think about what we can do to keep animals and plants from becoming endangered.专家告诉我们，我们需要考虑能做些什么会使动植物免遭危难。(1) 本句结构为:tell sb.+that宾语从句,其中what we can do作从句中谓语动词think about的宾语, “to keep animals endangered”作目的状语。(2) keep sb. from doin

2、g sth.是"阻止某人干某事"的意思。如：We must keep them from making trouble.我们必须防止他们捣乱。表示阻止某人干某事还可以用下而两种形式：stop sb. (from) doing sth. /prevent sb. (from) doing sth.其中 from 可以省略,但在 keep sb. from doing 中from不可省略。如：What can stop me (from) going if I want to go?如果我要去,有什么能阻止我去(那里)呢?The heavy rain kept us from

3、going out.大雨使我们没法出去。解密：在表示阻止某人某事时，keep sb. from doing sth冲的from为什么不能省略呢？其原因是keep sb. doing sth.另有它意一一让某人一直干某事。如：He kept me standing with my face to the wall for half an hour他让我而向墙站了 半小时。2. Steve Jones is an environmental expert who tries to keep animals and plants from becoming endangered.(1) 句中 kee

4、p sb./sth. from doing sth表示"阻止某人/物干某事S 相当于 stop/prevent sb. from doing sth. 例如：Parents often keep their children from watching TV too much家长们经常不让他们的孩子看太多的电视。(2 ) keep on doing sth. keep on doing sth与 keep sb./from doing sth.keep doing sth强调动作的连续不断，不与表示瞬间动作的动词连用：而keep on doing sht.i调反复性 和决心，既可接瞬

5、间动作(表示反复)，又可接持续动作。例如：®He caught such a bad cold that he kept coughing all the day.他得了重感冒以至于一整天都在咳嗽。(2) Mr wang kept on explaining until the students understood王先生反复地解释直到学生们听懂了为止。3. They are all used to their environment.他们都习惯 了 他们的环境。Be used to (doing ) sth意为“习惯于某事”。该句式中to是介词，后只能跟名词，代词或动词的ing&#

6、176; Be used to do sth意为“被用于干某事”，该句式中to是不左式符号，后跟动词原形。Used to do sth 意为“过去常常干某事”。例如：They have been used to walking every evening.他们已习惯每晚散步。Bamboo can be used to build house in the south of China.在中国南方，竹子可以用来建房。 The peasants used to live a poor life before liberation.农民在解放前一直过着穷苦的生活。4. Many of the ear

7、th plants and animals have already died out, and several other species are endangered.句中die out是“灭绝”的意思。out是副词，意为''尽，消失”，作表语。例如：The fire is out火熄 了。be out, be out of，be out for-be 0山的意思是“不上班/学，外出，过时，岀来”等：be out of要接宾语，意为“从出来，失去, 在之外” :be out for接名词，意为“努力得到”。例如：®She is out because of her

8、 illness.她因病没上学。Long skirts are out长裙已不再流行了。get out of a room.从房间岀来。out of work 失业 out of sight 看不见He is just out foi* money.他拼命想赚钱。5. Filially he asked people to stop killing the milu deer and said that animals are living beings too and to love animals is to love ourselves.后他要人们停I匕猎杀糜鹿并且说动物也是生灵，爱护动

9、物就是爱护 自己。(1) ask sb. to do sth要求某人做某事。如:He asked us to sing a song他要我们唱首歌。(2) stop doing sth.停止做某事,即停止正在做的事。如:She stopped crying and listened to the music.她不哭 了 > 听起音乐来。注意区分stop to do Sth.意为"停下来去做某事”，即停下原来的事去做另一件事。如：Dr Clarke stopped to listen to the weather report.克拉克医生停下来去听天气预报。(3) that后而跟

10、两个从句，作said的宾语。当宾语从句陈述的是客观事实，科学真理、格言、谚语 时，宾语从句的时态句与主句时态不一致，用一般现在时。故这两个宾语从句用现在时。如：He said that light goes much faster than sound.他说光速比声速快。(4) 在"to love animals is to love ourselves"中，动词不定式在句中分别作主语及表语,此时动词不龙 式与动名词在句中作主语或表语意义上无差别。如：To see is to bclieve= Seeing is believing.眼见为实。注意：一般情况下动划词和不左式

11、都可以作主语，前者表示一般或抽象的多次性行为，后者表示具体 的一次性的动作。如：Playing with fire is dangerousTo play with fire will be dangerous6. Tlie good news is that there is a lot we can do to屁少那个好消息是我们能做许多事情来帮助这些动 物。(1) 此名为that引导的表语从句。在表语从句中we can do作先行词a lot的定语从句，这个左语从 句省略了关系代词that (作宾语)。(2) news作不可数需词，表示“新闻、情报、消息、奇闻”等，谓语动词用单数。“一则

12、新闻”则 用 a piece of news 表示。What's the news today?今天有什么新闻？Fve got some encouraging pieces of news for you all.我有些好消息告诉你们各位°(3) 由(hat引导的表语从句，虽然that没有词义，也不充当句子成分，但它不能省去。The trouble is that I have lost his address.麻烦的是我把他的地址弄丢了。(4) a lot=lots,表示“很多，多数，多量”的意思。She knew a lot about it.关于那件事她知道得很多。I

13、 have a lot (lots) to do today我今天有很多工作要做(许多事情待办)。注a lot (lots)作副词，表示“非常，相当”的意思。Thanks a lot真谢谢你。He's feeling a lot better today他今天精神好多了。a lot of=lots of ( 口语)“很多的、多数的、多量的”的意思。多用于肯左句，在否泄句、疑问句中 要用many或much。She spends a lot of money on dress.她在穿着上花钱很多。We had lots of rain this month.这个月雨真多。7 Profess

14、or Stevenson, who has devoted himself to protecting the milu deer, gave a talk to Chinese college students in Beijing.史蒂文逊教授，致力于保持麋鹿，在北京给中国大学生作了一个报告。（1）句中“who has-thc milu deer, M为非限左性泄语从句。give a talk表示“作报告”的意思。Make a speech,表示“作演讲”的意思。（2）devote意为“把献给、把用在”，常与介词to搭配使用，to后常接划词、代词或 v-ing形式，不可接动词原形。如：He

15、 devoted his whole life to studying the cause of cancer.他把一生都用在研究癌症的起因上。Every spare moment was devoted to study.每一点空余时间都用在学习上。devoted作形容词，意为''忠实的”。如：The death of his devoted friend made him sad.他的忠实的朋友去世使他很难过。用于成语devote oneself to致力于,献身于：devoted to专心致志于,献身于，忠于，热爱，很喜欢。 如：After I graduated. I

16、continued to devote myself to research.我毕业后继续献身于/致力于研究工作。For ten years he devoted himself to helping the poor十年来他一直献身于帮助穷人的工作 °He was still devoted to the study of chemistry.他仍在从事化学研究工作。He is very devoted to his wife他十分忠于（很喜欢）他的妻子。Mary told me she was quite devoted to the child.玛莉告诉我她十分喜欢这个孩子&#

17、169;Her son. to whom she is so devoted, went abroad last year, leaving her alone in the small village她计分疼 爱的儿子，去年出国了，留下她一个人在小村子里。8. He told the students that he hopes that more people would care about the milu deer and more centers would be built to protect this animaL他告诉同学们他希望有更多的人将会关注麋鹿，建立更多的保护中 心

18、以保持这种动物。（1）句中care about表示“关心”的意思。还可以作"喜欢”讲。多用于否定句，疑问句或条件句， 表示''介意，在乎，关心”等，有时省略about。He cares about music.他喜欢音乐。He doesn't care a bit about clothes.穿着方而他亳不在乎。She thinks only of herself： She doesift care about other people.她只考虑自己，从不关心别人。（2）care for表示“喜欢，关心，照顾”等意思。I don't care for

19、baseball.我不喜欢棒球。She cares for her sick mother.她照顾她生病的母亲。She cares only for herself and her family.她只关心她自己和家人*She cares for the children as if they were her own她照料这些孩子，就像自己亲生孩子一样。The sick must be cared for.病人必须有人照顾。（3）care构成其他短in： take care小心，注意:take care of照料，注意:have a care （口）小心,注 意：medical care 医疗；for all I care （ 口 ）我不在乎。9. When the habitat of a species is changed or destroyed, the animal or plant has to either adapt to the change