必修4 Unit 1重点词汇1. achieve【名师点拨】achieve v. 意为“完成；达到”，指经过长期努力而达到某目标、地位或标准等。
其名词形式为achievement，意为“成就；功绩”，a sense of achievement可指“成就感”。
如：He had finally achieved success.Even a small success gives you a sense of achievement.2. condition【名师点拨】condition 意为“环境；境况；条件”时，是可数名词，常用复数形式conditions；意为“状态；状况”时，是不可数名词，be in good condition表示“处于良好的状态”，be out of condition表示“健康状况不佳”。
如：We should pay more attention to the poor living under the bad conditions.The astronauts soon got used to the condition of weightlessness.My car is old but in good condition.He is overweight and out of condition.【知识拓展】condition意为“条件”时，常用短语on condition that，表示“如果；在……条件下”；在美国英语中，也经常用under the condition that。
如：I will come on condition that Peter is invited.They agreed under the condition that the matter be dealt with quickly.3. devote【名师点拨】devote vt. 意为“投入于；献身”，其宾语后常与介词to搭配，to后接名词、代词或动名词。
devote … to …意为“献身；致力于”，指把自己、时间、精力等奉献给某种工作或事业。
如：He has devoted his whole life to benefiting mankind.The girl, to whom he was devoted, died in a traffic accident by chance.After he has retired, he will devote himself to gardening.4. behave【名师点拨】behave vi & vt. 意为“举动；举止；行为表现”，如behave well / badly 等。
其名词形式为behaviour，指“行为；态度；举止”。
如：The parents encouraged the children to behave well in front of the guests.My camera has been behaving well since it was repaired.Everyone praises the children's good behaviour.5. worthwhile【名师点拨】worthwhile adj.意为“值得做的；值得出力的”，可作表语或定语。
be worthwhile to do / doing sth表示“值得做……”，在动词-ing形式的结构中，worthwhile 有时可以用来替代worth，特别是在表示“值得花时间”这一概念时。
如：I think teaching school is always a worthwhile job.The book referred to by the professor is worthwhile / worth reading.6. observe【名师点拨】observe vt. 意为“观察；观测；遵守”，可用observe sb do sth，observe + that从句。
其名词形式为observation。
如：I observed the man who murdered the boy enter the shop.He observed that we should probably have rain.Most information was collected by direct observation of the animals’ behaviour.7. argue【名师点拨】argue作动词时，意为“争论；争吵；争辩”。
argue for意为“为……辩护”；argue with sb about / over sth指“就某事和某人争论”；argue against意为“据理反对；争辩……”。
如：It is no use arguing for the plan because it has been rejected.We are always arguing with each other about money.Father argued fiercely against any increase in expenditure for the children’s annual party.9. care for【名师点拨】care for可以表示look after的意思，意为“照顾；照料”，且较正式；也可表示“喜欢”的意思。
如：His son cared for him when he was ill.In fact, I don’t really care for basketball.另外，在上面的句子中，explain意为“解释，说明”，后可接名词、代词、从句或wh + to do作宾语，可用explain sth to sb或explain to sb sth。
如：Will you explain to us how we can finish the work as soon as possible?【知识拓展】care about意为“介意；在乎”，表示是否认为某事是重要的，某事是否引起了某人的兴趣或使其忧虑。
最常用于疑问句或否定句中。
about用在宾语前面，但是在连词前面一般省掉。
I don’t care about your opinion.I don’t care whether it rains — I’m happy.10. intend【名师点拨】intend v. 意为“打算；计划；想要”。
intend to do sth意为“想干某事”；intend后也可以接动词-ing形式或that从句。
intend for表示“原打算给某人；准备让……干……”。
如：I intended to come to your house last night but it rained.I intend coming / to come back soon.He hadn’t really intended that they should be there.This gift is intended for you.重点句子1. She spent years observing and recording their daily activities.2. Only after her mother came to help her for the first few months was she allowed to begin her project.3. It seem that she had been very busy in her chosen career, traveling abroad to study as well as writing books and articles.4. Further reading made me realize that it was hard work and determination as well as her gentle nature that got her into medical school.5. Watching a family of chimps wake up is our first activity of the day.6. This means going back to the place where we left the family sleeping in the tree the night before.7. It was unusual for a woman to live in the forest.8. Her work changed the way people think about chimps.9. She actually observed chimps as a group hunting a monkey and then eating it.… helped her work out their social system.However the evening make it all worthwhile.We watch the mother chimp and her babies play in the tree.必修4 Unit 21. be satisfied (with): pleased because you have got what you want1) Jane isn't quite satisfied with the way the barber cut her hair.2) If you are not completely satisfied, you can get your money back.3) I am not really satisfied with the job you did.2. refer to : a) mention or speak about someone or somethingb) to look at a hook map, piece of paper, etc, for information1) We agreed never to refer to the matter again.2) Although she didn't mention any names, everyone knew who she was referring to.3) He gave the speech without referring to his notes even once.3. would rather: used to say what someone prefers1) It seems you would rather play than work.2)She would rather die than lose the children.3) I would rather starve than be dependent on anyone again.4. thanks to sb/ sth : because of sb./ sth.1) I was late thanks to the heavy traffic.2) It was thanks to his advice that I succeeded.3) We've collected $50,000 for the poor, thanks to the generosity of the public.5. rid of sb/sth: become free of1) Will science- finally rid us of this disease?2) Do you think it possible to rid the world of nuclear weapons?3) By working hard day and night, she is trying to rid herself of loneliness and sadness.6. lead a ...life: live in the way what you life is like1) Before liberation, my grandpa led a dog's life.2) If the operation succeeds, the patient will be able to lead a normal life.3) Mrs. Black is retired and leads a quiet and peaceful life in a mountain village.7. care about: love; be interested in; be concerned with1) Just listening to somebody shows you care about them.2) Your parents are only doing this because they care about you.3) The only thing this rich- and greedy man seems to care about is money.8. insist on sth/doing sth: to demand that something must be done or that you must have a particular thing1) The school insists on good behaviour from its students.2) John insisted on doing all the work himself, though he was in poor health.3) The old man insisted on helping me find a taxi even though I told him I didn't need any help.重点句子1. Dr Yuan Longping grows what is called super hybrid rice.2. The special strain of rice makes it possible to produce one-third more of the crop in the same field.3. Dr Yuan searched for a way to increase rice harvests without expanding the area of the fields.4. Dr Yuan is quite satisfied with his life.袁博士对生活非常满足。
