人教版英语必修三unit4知识点以及相应练习超级好

人教版高中英语必修三词汇表（含教材例句及词汇用法讲解）Book3 Unit41. astronomy / əˈstrɒnəmi / n.天文学△astronomer /əs'trɒnəmə/ n.天文学家2. △solar /'səʊlə/ adj.太阳的；日光的3. system /ˈsɪstəm/ n. [C]系统；体系；制度solar system n.太阳系a transport system 运输系统The present educational system is unsatisfactory. 目前的教育体制并不令人满意。

4. religion /rɪ'lɪdʒən/ n. [C,U ] 宗教；宗教信仰Buddhism is one of the world religions and one of its most famous religious buildings inChina is the Potala Palace in Tibet. 佛教是世界宗教之一，在中国最著名的宗教建筑是西藏的布达拉宫。

5. theory /'θɪərɪ/ n. [C]学说；理论However, according to a widely accepted theory, the universe began with a "Big Bang" that threw matter in all directions. 然而，一种普遍为人们所接受的理论是：宇宙起源于一次大爆炸，这次大爆炸将物质投射到四面八方。

（P25）the Theory of Relativity相对论in theory理论上Your plan sounds fine in theory, but will it work?你的计划在理论上听起来不错, 但行得通吗?6. △B i g Bang n.宇宙大爆炸, 创世大爆炸7. atom /'ætəm/ n.原子8. billion /'bɪljən/ pron.&n.&adj.万亿；十亿For several billion years after the "Big Bang", the earth was still just a cloud of dust. 大爆炸后好几十亿年过去了，但地球还只是一团尘埃。

SectionⅢUsing Language,Assessing Your Progress&Video Time课后·训练提升一、单词拼写.John stood out among the c and was chosen as chairman of the committee..It makes you read the next e to find out what’s going to happen in the novel..His sole m was to make her happy..She got into the car and started the m and set off for home.is one of the major sources of the Chinese culture..A fishing boat sank because of the r sea waves.skilfully guided the ship over the dangerous part of the sea..He made a c to pay the rent on time.1.万一她有个三长两短怎么办?anything should happen to her?2.这种化学变化能放出热和光。

by this chemical change.3.要是没有水,植物就无法生长。

water,no plant could grow.’t for4.作为保持健康的方式,没有什么比得上游泳。

swimming as a means of keeping fit.5.我必须做点什么去报答他的帮助。

.ALike many American people,I have a “bucket list”.It’s something along the lines of the “top-10-things-to-see-or-do-before-you-die” lists published on travel web sites.“Set foot on all seven continents” has always been on my list.This past February,after nearly six months of planning,I was fortunate to be able to knock off two—the most amazing being Antarctica,the other South America.I chose an optimal time to go—summer in the southern hemisphere(半球)—and found a tour company online that was able to accommodate my needs.It is a costly adventure,especially when travelling solo,but the company put together a package for me that was perfect.The company not only got me to the continent,but allowed me the opportunity to set foot on it.Many tour companies will put you on a ship that sails through the area,weaving between islands and giving views of the shore.But to actually set foot on the continent is a rare and impressive treat.One of the tour leaders on our boat estimated that the total number of people who have actually set foot on this land—tourists,scientists and explorers—would only fill a very large football stadium.This is because tourism to Antarctica didn’t really exist until roughly 15 years ago and has only recently taken off in popularity.There are also rules and restrictions for visiting set up by the International Association of Antarctica Tour Operators.Take nothing away,and leave nothing behind.My plan was simple.Arrive in Ushuaia,Argentina,and get on the M/V Orlova,an ice-strengthened Russian ship,to spend 10 days exploring Antarctica.We saw paradise in a frozen form.No traffic noise,no pollution,no road rage—just clear skies,fresh air and undisturbed beauty for miles.Months later,I still wish I could be there sitting with the penguins,taking it all in,smile firmly frozen in place.1.When the author started his travel,what season was it in America?A.Spring.B.Summer.D.Winter.“I chose an optimal time to go—summer in the southern hemisphere...”可知,作者是在美国是冬季的时候出发的。

Unit 4 Astronomy: the science of the stars 单元要点预览语言要点Ⅰ.词语辨析Ⅱ.词性变化Ⅲ.重点词汇1. system n.[c] 系统；体系；制度；方法systematic adj 有系统的; 有条理的[典例]1). The solar system includes the sun and its eight planets. 太阳系包括太阳和它的八颗行星。

2). Alcohol is bad for your system. 喝酒对身体有害。

[练习] 根据句子的意思完成句子。

1). The ______ ______ (教育系统) operates very differently in the US and China.2). He introduced us a well-designed ______ ______ (铁路系统).2. lay vt. (laid, laid, laying) 把放下；摆设；铺(地毯) ；产(蛋)[典例]1). He laid his hand on my shoulder. 他把手放在我的肩上。

2). Who should we lay the blame on? 我们该责备谁?[重点用法] lay短语：lay eggs 下蛋lay sth. aside 把某物放在一边；积蓄（钱）lay sth. down 把某物放下lay the blame on sb.责备某人lay the table 摆桌子lay emphasis / stress on sth. 把重点放在某事上[练习] 根据句子的意思在括号里填入适当的词或翻译。

1). The bird ______ its eggs in other birds’ nests.2). He is a political leader that _____ _____ _____ _____ (非常强调) individual responsibility.3). He ______ some money ______ for rainy days.3. harmful adj. 有害的；伤害的harm n.&vt. 伤害（某人）[典例]Many people are aware of the harmful effects of smoking.很多人都意识到吸烟的危害。

人教版高中英语必修三Unit4SpaceExploration重点归纳笔记单选题1、Many enterprising young people present their ideas________ getting investment and advice to start their own b usiness.A．at the cost ofB．by means ofC．as a result ofD．in the hope of答案：D考查介词短语辨析。

句意：许多有进取心的年轻人提出了自己的想法，希望得到投资和开始自己事业的建议。

A. at the cost of以……为代价；B. by means of 用；C. as a result of 由于；D. in the hope of怀着……的希望。

根据句意可知，年轻人提出自己的想法是希望得到投资和建议，故in the hope of符合题意。

故选D。

2、These products received good customer response, ______ in 4% comparable store sales growth in November. A．resultedB．to resultC．resultingD．having resulted答案：C考查非谓语动词。

句意：这些产品获得了良好的客户响应，使得11月份销售额增长了4%。

result in“导致，结果是”，为固定短语；句中一有个谓语动词received，且无连词，故空处应用非谓语动词作状语；表示自然的结果，应用现在分词；此处不表动作的完成，故排除D。

故选C。

3、Tu Youyou was awarded the Nobel Prize for her ________ in discovering a new cure for malaria (疟疾). A．differenceB．decisionC．procedureD．achievement答案：D考查名词词义辨析。

课时把关练Part I Reading and Thinking基础知识练Ⅰ. 单词拼写1. Holidays are expensive and，for those on low w（工资），they are often unobtainable.2.Losing the basketball match last week was a b（激烈而不愉快的）disappointment for the team.3. I said goodbye to my friend as he got a（上，登上）the train at Beijing Railway Station.4. They enjoyed an income and lifestyle that many people would e（羡慕）.5. He saw the corner of a magazine sticking out from under the b（毛毯）.6. We must find ways to assure our children a d（相当不错的）start in life.7. The reforms are motivated by a g（真正的）concern for the disabled.8. My heart s（下沉）because I thought he was going to leave me behind.Ⅱ. 用所给短语的适当形式填空1. The little girl has several invitations to star at shows in order to concentrate on her studies.2. Nowadays many young people from the countryside finding good jobs in big cities.3. During Spring Festival，people like to firecrackers and put up spring couplets on the door.4. At dusk，I walked as far as the lake and then I made up my mind to .5. Mr. Smith was thirty minutes late for the meeting because he had been traffic jam.6. Faced with challenges，you’d better a good state of mind.7. I don’t know why you are so concerned—it isn’t your problem .8. Young people，and vitality，are like the sun at eight or nine in the morning.Ⅲ. 单句语法填空1. In my opinion，there is no evidence indicating that he is a （qualify）doctor.2. Before I entered the competition，I had mixed program of strength and （endure）training.3. I was always an （enthusiasm）reader，sometimes reading up to three books a day as a child.4. Never will I forget my first （assign）at the office of a popular English newspaper.5. If you don’t have an aim，you will drift like an （abandon）ship at sea.6. He asked me to take fewer （belong）as there was little room left in our car.7. With faith and （persevere），Goodall finally overcame all the difficulties.8. They made a （resolve）to go climbing Mount Tai on Sunday.Ⅳ. 一句多译1. 我下火车时碰巧在下雨，因此只好乘出租车。

课时把关练Part II Learning About Language词汇专项练Ⅰ. 单词拼写1. Animal rights advocates argue that zoos are really animal prisons and very often c（残忍的）.2. In an attempt to find the lost treasure，they made a t（彻底的）search of the house.3. We thought of selling this old f（家具），but we’ve decided to hold on to it. It might be valuable.4. U（不幸地），her works did not attract much attention in the 1930s and 1940s.5. If you put on d（潮湿的）clothes in such weather，you will probably catch cold.6. All the family members need to have their own interests and r（娱乐活动）.7. I would like to apply for the position which was a（做广告）in yesterday’s newspaper.Ⅱ. 根据汉语提示完成句子1. The morning sun rises in the east，casting its rays （向四面八方）.2. I was very （对……热情）the lecture，but his remark on it made me disappointed.3.Mr. Johnson was grateful for and （为……感到骄傲）his son’s remarkable performance.4. We decided to （尽力）to solve the problem，however difficult it was.5.（在他的指导下），the workers finally managed to solve the problem ahead of schedule.6. Organized games can teach us how to （团队合作）and get along with others.7. All of us were shocked to hear the boy talking （以粗鲁的方式）.8. You have to learn to take down the key points （即使）you don’t take them in.语法专项练Ⅲ. 单句语法填空1. I’m sure you will do better in the test because you （study）so hard this year.2. Tom （work）in the library every night over the last three months.3. —We’ve spent too much money recently.—Well，it isn’t surprising. Our friends and relatives （come）around all the time.4. Mother wanted to be a good provider，a role she （shoulder）since her marriage to father.5. —Why，Jack，you look so tired!—Well，I （paint）the house and I must finish the work tomorrow.6. Joseph （go）to evening classes since last month，but he still can’t say“What’s your name?”in Russian.7. —Why do you want to work for our company?—This is the job that I （look）for.8. —Where is Peter? I can’t find him anywhere.—He went to the library after breakfast and （write）his essay there ever since.9. —Sir，I’m here.—Please listen. I （consider）asking your parents to come to our school，but I’d like to hear your opinion first.10. Little Tom should be up because he （sleep）for nine hours.Ⅳ. 根据汉语提示完成句子1. My sister （一直在寻找）a job for three months，and this is her formal interview.2. The kids are dirty all over because they （一直在玩）in the mud all the morning.3. —I’m sure Andrew will win the first prize in the final.—I think so. He （一直在做准备）it for months.4. —I have got a headache.—No wonder. You （一直坐在）in front of that computer too long.5. Cathy is taking notes of the grammatical rules in class at Sunshine School，where she（一直在学习）English for a year.6. It’s hard to tell exactly how many people agree with him，but research indicates that the numbers（一直在上升）for some time.V.语法填空AI 1 （hear）a strange sound for a while. It’s a deep，loud roar，like a lion’s. But there aren’t any lions here... Or are there? Soon I see what 2（make）the noise：a howler monkey. Now I feel less worried. Realising that something 3（move）on my shoulder，I turn my head to look at it. Oh no! It’s a giant spider!I brush it off and it runs under some leaves. I try to bat away the huge insects，which 4（fly）around my head in a black cloud for quite a while. I pull off the headset and I’m back in my living room. Thank goodness! I5 （give）the latest virtual reality headset and，for the last twenty minutes，I 6（use）it to explore the Amazon. This is an amazing experience and a reminder of how many species there are in the rain forest. We must do all we can to protect itBIt 1 _______________(estimate) that over 30 million people worldwide have lost arms or legs，and many of them fail to get the help that they need. For some time，they 2_______________(hope)for better-quality artificial limbs. Fortunately，one exciting new advance could help these physically disabled people lead a normal life again：robotic limbs.Over the last few years，scientists 3_______________(develop) new kinds of artificial limbs to help people overcome their disabilities. Robotic limbs can do much more than conventional artificial limbs. Some of the earliest artificial limbs were made of wood and leather，and until recently，artificial limbs 4_______________( only serve) basic functions. With the advancement in robotic technology，artificial limbs can now perform much more complex tasks and come closer to real human limbs. Not only can they make a much wider range of movements，but they can also be controlled directly by the brain and feed sensory information back into it.David Jones is one of a team of scientists devoted to making even better robotic limbs. “ We 5_______________( do) everything we can to advance this technology and we will not take out a patent on it，” said David. “Hopefully，more and more people in need of robotic limbs will be equipped with them and enjoy a higher quality of life.”课时把关练Part II Learning About Language参考答案Ⅰ. 1. cruel2. thorough 3. furniture4. Unfortunately 5. damp 6. recreations7. advertisedⅡ. 1. in all directions2. enthusiastic about3. proud of 4. try our best 5. Under his guidance 6. work as a team 7. in a rude manner8. even thoughⅢ. 1. have been studying句意：我确信你将在这次考试中做得更好，因为这一年你一直用功学习。

人教版高中英语必修三Unit4SpaceExploration知识点归纳总结(精华版) 单选题1、— I have heard that Cao Wenxuan had won the Hans Christian Anderson prize.— Great! His books always bring me to places I might not _______ have been either in thoughts or reality. A．regardlessB．otherwiseC．thereforeD．anyhow答案：B考查副词词义辨析。

句意：——我听说曹文轩获得了汉斯·克里斯蒂安·安德森奖。

——太好了！他的书总是把我带到一些地方，否则我可能无论是在思想上还是在现实中都不会到达的地方。

A. regardless不管； B. otherwise否则；C. therefore因此；D. anyhow不管怎样。

结合句中“either in thoughts or reality”可知，此处指在思想和现实中我都不会去到的地方，但他的书可以把我带着去这些地方。

故选B。

2、The difficult exercise was ________ the abilities of most of the class, making us upset. A．beyondB．besidesC．behindD．below答案：A考查介词词义辨析。

句意：这个困难的练习超出了班上大多数人的能力，这使我们很沮丧。

A. beyond超过，在……较远的一边；B. besides除……之外（还）；C. behind在……后面，落后；D. below在……下面，低于。

据句意和所给部分可知这里使用介词beyond意为“超出”，beyond the abilities of 意为“超出……能力”符合题意。

人教版高中英语必修三Unit4SpaceExploration题型总结及解题方法单选题1、________ a full discussion of the problem, the committee spent a whole hour exchanging their ideas at the meeti ng.A．HaveB．HavingC．HadD．To have答案：D考查非谓语动词。

句意：为了充分讨论这个问题，委员会在会上花了整整一个小时交换意见。

分析句子结构可知，have在句中应用非谓语动词形式，此处作目的状语，应用不定式。

故选D。

2、He never complains about the difficulties he has in life. ________, he always has ways to overcome them. A．HoweverB．OtherwiseC．InsteadD．Therefore答案：C考查副词词义辨析。

句意：他从不抱怨生活中的困难。

相反，他总是有办法克服它们。

A. However然而；B. Otherwise否则；C. Instead相反；D. Therefore因此。

根据句中complains和overcome可知，此处表达的是“相反”关系。

故选C。

3、Parents ______ much importance to education. They will do their best to give their children that priceless gift. A．contributeB．payC．linkD．attach答案：D考查动词词义辨析。

句意：家长们认为教育非常重要。

他们将尽全力去给他们的孩子们这个无价的礼物。

A.contribute贡献；B.pay付款；C.link联系；D.attach把…附加上。

attach importance to sth表“重视某事”,为固定短语。

2019-2020学年高中英语人教版必修三Unit 4 Astronomy: the science of the stars1. system n1 [C] 系统; 组合装置the nervous system 神经系统the digestive system 消化系统a railway system 铁路系统 a stereo system 立体声音响设备2 [C]（思想、理论、原则等的）体系, 体制, 方法, 方式a system of philosophy 哲学体系the democratic system of government 民主政体a good system of teaching languages 教授语言的良好方法3 [U] 制度; 步骤; 条理You'll find little system in his method of work. 他的工作方法无甚条理.We must introduce some system into our office routine. 我们须在我们日常公务中建立一些制度.4 the system [sing]（某社会、机构、企业等中）沿袭已久的方法、做法和规则You can't beat the system 老规矩触动不得（必须照办）.5 (idm 习语) get sth out of one's `system (infml 口) 宣泄强烈的感情或满足强烈的愿望He desperately wants to be an actor, so you'll have to give him time to get it out of his system.他渴望当演员, 你就得容他时间让他施展自己的抱负.2.the∙ory1.[C, U] 學說；論；說：According to the theory of relativity, nothing can travel faster than light.根據相對論，光比什麼都傳播得快。

SectionⅡLearning About Language课后·训练提升一、选词填空.As a saying goes,dogs don’t bite.tell the truth while some don’t.hurt his feelings..understanding of it..of the teachers.1.It is the most instructive lecture that I (attend) since I came to this2.The two friends (chat) on the Internet for three hours,and(ring) in the office all the morning.4.In order to find the missing child,villagers (do) all they can over5.The manager (tell) the workers how to improve the programmeWhat could driving a race car and pointing a camera at the Milky Way have in common? More than you might imagine.Race car driver Bubba Wallace and photographer Batak Tefreshi made a journey together to remote Gooseberry Mesa,for an adventure aimed at taking pictures of the night sky.Gooseberry Mesa,far from population centers,is protected from the nighttime light pollution,making it perfect for star photographers.Nature night environments such as this are rare.Camping,hiking,and shooting stars in mountainous Mesa stress the similarity between photography and racing.Bubba notes,“Once you start the engine there’s no turning back—I know I’ll be in that seat for more than three hours.” Batak agrees,“I have the same feeling as soon as I touch the wheel of my camera—I’m ready to continue through the entire night.” ForBubba,developing patience allowed him to become a better driver and it is equally important to his photography.Seizing the moment is crucial too.“Every minute things are changing—the Earth’s shadow,the moonlight,the rise of stars,” Batak explains.“If you lose the moment,it’s gone forever.” Bubba finds the physical and mental demands of racing as important when travelling in Utah’s rough landscapes under freezing temperatures.Think incoming clouds,wind,or mist will ruin your chance at a perfect photo? According to Batak,“With wide-angle nightscapes,every unexpected weather condition can be an opportunity.Our photos show oranges and blues around the moon you wouldn’t see under a clear sky.”The team discovered shared interests that go beyond photography.“We are both crazy about bringing cultures together and using our work to break down boundaries(边界),” says Batak.“The night sky has a unifying power.The sky connects the whole world under one umbrella.”1.Why did Bubba and Batak choose Gooseberry Mesa?A.It has a small population.B.It has perfect weather conditions.C.It is free from light pollution.,二人选择Gooseberry Mesa是因为那里没有光污染,适合星空摄影。

2019-2020学年高中英语人教版必修三Unit 4 Astronomy: the science of the stars 语言要点（模块）Ⅰ.词语辨析Ⅲ.重点词汇1. system n.[c] 系统；体系；制度；方法systematic adj 有系统的; 有条理的[典例]1). The solar system includes the sun and its eight planets. 太阳系包括太阳和它的八颗行星。

2). Alcohol is bad for your system. 喝酒对身体有害。

[练习] 根据句子的意思完成句子。

1). The ______ ______ (教育系统) operates very differently in the US and China.2). He introduced us a well-designed ______ ______ (铁路系统).Keys: 1). educational system 2). railway system2. lay vt. (laid, laid, laying) 把放下；摆设；铺(地毯) ；产(蛋)[典例]1). He laid his hand on my shoulder. 他把手放在我的肩上。

2). Who should we lay the blame on? 我们该责备谁?[重点用法] lay短语：lay eggs 下蛋lay sth. aside 把某物放在一边；积蓄（钱）lay sth. down 把某物放下lay the blame on sb.责备某人lay the table 摆桌子lay emphasis / stress on sth. 把重点放在某事上[练习] 根据句子的意思在括号里填入适当的词或翻译。

1). The bird ______ its eggs in other birds’ nests.2). He is a political leader that _____ _____ _____ _____ (非常强调) individual responsibility.3). He ______ some money ______ for rainy days.Keys: 1). lays 2). lays great stress on 3). lays/puts; aside3. harmful adj. 有害的；伤害的harm n.&vt. 伤害（某人）[典例]Many people are aware of the harmful effects of smoking. 很多人都意识到吸烟的危害。

高一英语必修三unit4第四单元知识点词汇部分wildlife /'waildlaif/ n.野生动植物protection /pr?'tek?n/ n.保护wild /waild/ adj.野生的；野的；未开发的；荒凉的habitat /'h?bit?t/n.栖息地（动植物的）自然环境threaten /'θret?n/ vt. & vi.恐吓；威胁decrease /di'kri:s/ vi. & vt.减少；（使）变小；或变少endanger /in'deind??/ vt.危害；使受到危险die out 灭亡；逐渐消失loss /l?s/ n.损失；遗失；丧失reserve /ri'z?:v/ n.保护区hunt /h?nt/ vt. & vi.打猎；猎取；搜寻zone /z?un/ n.地域；地带；地区in peace 和平地；和睦地；安详地in danger (of) 在危险中；垂危species /'spi:?i:z/ n.种类；物种carpet /'kɑ:pit/ n.地毯respond /ri'sp?nd/ vi.回答；响应；做出反应distant /'dist?nt/ adj.远的；远处的fur /f?:/ n.毛皮；毛；软毛antelope /'?ntil?up/ n.羚羊Zimbabwe /zim'ba:bwei/ n．津巴布韦(非洲东南部国家)relief /ri'li:f/ n.（痛苦或忧虑的）减轻或解除；减轻痛苦的事物in relief 如释重负；松了口气laughter /'lɑ:ft?/ n.笑；笑声burst into laughter 突然笑起来；大声笑了出来mercy /'m?:si/ n.仁慈；宽恕；怜悯certain /'s?:tn/ adj.确定的；某一；一定importance /im'p?:t?ns/ n.重要（性）WWF (World Wildlife Fund) 世界野生生物基金会rub /r?b/ vt.擦；摩擦protect … from 保护……不受……（危害）mosquito /m?'ski:t?u/ n.蚊子millipede /'milipi:d/ n．(=millepede)千足虫insect /'insekt/ n.昆虫contain /k?n'tein/ vt.包含；容纳；容忍powerful /'pau?fl/ adj.强大的；有力的affect /?'fekt/ vt.影响；感动；侵袭attention /?'ten?n/ n.注意；关注；注意力pay attention to 注意appreciate /?'pri:?ieit/ vt.鉴赏；感激；意识到succeed /s?k'si:d/ vi.成功vt.接替；继任Indonesia /ind?u'ni: ??;-zi?/ n．印度尼西亚(东南亚岛国) rhino /'rain?u/ n.犀牛secure /si'kju?/ adj.安全的；可靠的income /'i?k?m; 'ink?m/ n.收入employ /im'pl?i/ vt.雇用；利用（时间、精力等）harm /hɑ:m/ n. & vt.损害；危害Milu deer麋鹿bite /bait/ vt. & vi.(bit,bitten) 咬；叮；刺痛extinction /ik'sti?k?n/ n.灭绝；消亡dinosaur /'dain?s?:/ n.恐龙come into being 形成；产生county /'kaunti/ n.县；郡inspect /in'spekt/ vt.检查；视察unexpected /?nik'spektid/ adj.没料到的；意外的incident /'insid?nt/ n.事件；事变dust /d?st/ n.灰尘；尘土；尘埃according to 按照；根据……所说Mauritius /m?'ri??s/ n．毛里求斯(非洲东部岛国) disappearance /dis?'pi?r?ns/ n.消失fierce /fi?s/ adj.凶猛的；猛烈的so that 以致于；结果ending /'endi?/ n.结局；结尾faithfully /'feiθf?li/ adv.忠诚地；忠实地Colobus /'k?l?b?s/ monkey (非洲产)疣猴，髯猴词组部分1. as a result结果As a result of= because of 由于result in = cause导致result form 由于2. die out （动，植物物种）灭绝die o 死于…（多内因）die from死于…（多外因）die dow变弱；逐渐消失 be dying for 渴望得到…3. be at a loss = be puzzled at =be confused迷惑的，不解的suffer a loss (of) 蒙受损失 make up for a loss 弥补损失be lost in one’s thought(陷入沉思) lose heartlose one’s heart to sb4.in peace 平静的（地）；安静的（地）in silence/ in quiet/in surprise/in a hurry5.hunting for搜索; 搜寻6.be in danger of 有… 危险be out of danger脱离危险endangered adj. 濒危的 dangerous 危险的7.have / give an effect on / upon …take effect(生效)come / go into effect 生效；实施8.be concerned about担心.关心，挂念 9. get dressed穿上衣服get done强调动作，不能和表一段时间的状语连用;be done 表状态10.turn round : 转过去，围绕…旋转11.apply to应用be applied to被应用于apply for请求,申请….. apply to sb. for sth.12.protect ……from保护…..免受….危害prevent from阻止（stop/ keep from）13.have aeffect on对...有影响14.with a sad face looking at her. with + 宾语(O) + 宾语补足语/doc/dd5261298.html,e into being: 形成；产生；开始存在come into use：开始被使用come into one’s mind / head: 突然想到come into fashion: 开始流行come into consideration: 开始考虑必背知识点1. If the ir habitat is threatened or they can’t find enough food, their numbers may decrease. 如果他们的栖息地受到威胁或者他们找不到足够的食物，他们的数目就可能减少。

2019-2020学年高中英语人教版必修三Unit 4 Astronomy：the science of the stars知识点归纳I.Important phrases1．exist vi.存在；生存(1)exist in存在于……之中exist on 靠……为生There exists/existed ... 某地有……；存在……(2)existence n. 存在；生存come into existence 产生；成立；开始存在2．puzzle vt.使迷惑；使为难；使窘困；感到迷惑n.(游戏的)猜谜；难题；谜(1)puzzle over/about sth.苦苦思索；仔细琢磨……puzzle sth.out 琢磨出……的答案a puzzle to sb. 对……来说是个谜(2)puzzled adj. 迷惑不解的(常用来修饰人)be puzzled about 对……感到迷惑puzzling adj. 令人迷惑不解的(常用来修饰事物)3．pull n．& vt.拉(力)；拖；牵引力pull away(汽车等)开走pull down 拆毁；摧毁pull up 停下(车)来；阻止pull in (车辆)进站停靠；靠边停靠pull out 驶出；退出；(使)摆脱困境pull through 康复；痊愈4．force vt.促进；强迫n.力量；军队(1) force sb. to do sth迫使……做force sb. into doing sth. 迫使……做force one's way (into) 强行前进或进入force sth. on sb. 把……强加于某人(2)by force 依靠武力come into force (法律)实施in force 大批地；大规模地5．in time及时；终于；总有一天(1)in no time 立刻；马上at no time 绝不(位于句首，句子需倒装)at a time 每次；一次at one time 曾经；一度at the same time 同时from time to time 有时；偶尔(2)take one's time 别着急；慢慢来kill time 消磨时间6．in one's turn轮到某人；接着in turn依次；轮流；反之；反过来by turns 轮流；交替地take turns to do sth. 轮流做某事It is one's turn to do sth. 轮到某人做某事It turns/turned out that ... 结果……7．cheer up(使)高兴；(使)振奋；感到高兴；感到振奋(1)cheer sb. on(比赛中)以喝彩声鼓励；为某人加油cheer the victory 为胜利而欢呼(2) cheering adj. 能鼓舞人的；使人振作/高兴的cheerful adj. 快乐的；高兴的；兴高采烈的cheerless adj. 阴冷的；阴暗的；阴郁的；不快乐的(3) Cheers! (用于祝酒)干杯！8. solar system ; a social system; a railway system; the present education system9. lay eggs10. give birth to11. block out12. carbon dioxide13. manned spaceship14. watch out; watch out forII. Important sentence patterns1.make it＋adj.＋for sb.to do sth.“使某人做某事……”(it是形式宾语，形容词是宾语补足语，for sb.to do是真正的宾语)。