必修3Unit 4 Astronomy: the science of the stars要点梳理高效梳理·知识备考●重点单词1．astronomy n．天文学→astronomer n．天文学家2．system n．系统；体系；制度3．theory n．学说；理论→theoretical adj.理论上的4．globe n．球体；地球仪；地球→global adj.全球性的；全世界的5．violent adj.猛烈的；激烈的；强暴的→violence n．暴力→violently adv.猛烈地6．atmosphere n．大气层；气氛7．unlike prep.不同；不像→dislike vt.不喜欢8．presence n．出席；到场；存在→present adj. & n. & v．在场的；目前，现在；出席；颁发，授予9．harmful adj.有害的；伤害的→harm n．危害，害处→harmless adj.无害的10．exist vi.存在，生存→existence n．存在，生存11．puzzle n．谜；难题vt. & vi.(使)迷惑；(使)为难→puzzled adj.迷惑的→puzzling adj.令人迷惑的12．gravity n．万有引力；重力13．satellite n．卫星；人造卫星14．climate n．气候15．spaceship n．宇宙飞船16．pull n. & vt.拉(力)；拖；牵引力17．float vi. & vt.(使)浮动；(使)漂浮 n．漂浮物18．mass n．质量；团；块；大量；(复)群众●重点短语1．in time 及时；终于2．lay eggs 下蛋3．give birth to产生；分娩4．in one’s turn 轮到某人；接着5．prevent...from 阻止；制止6．block out挡住(光线)7．cheer up感到高兴；感到振奋8．now that 既然9．break out突发；爆发10．watch out密切注视；当心；提防11．cool down 冷却12．as well as 也；还有……13．depend on依靠；依赖，取决于14．get close to 靠近●重点句型1．This produced a chain reaction, which made it possible for life to develop. 这就形成一个连锁反应，使生命发展成为可能。
Unit 4 Astronomy：the science of the starsPeriod 1 Grammar points.一．语法要点主语从句：在复合句中作主句的主语的从句叫主语从句。
引导主语从句的词有连词that, whether；连接代词who, what, which；连接副词when, where, how, why等。
Eg: Which team will win the match is still unknown.主语从句放在句首，句子常显得笨重，因此一般把它放到句子后面，前面用引导词”it”来作主语。
Eg: It’s strange that he didn’t come yesterday.二．重点难点1．Nobody knew that it was going to be different from other planets going to be different from other planets going round the sun.going round the sun 为现在分词短语定语，表示一般的动作。
Eg: Men breaking the law will be punished.现在分词短语，也可表示进行的动作2. Weather life will continue on the earth for millions of years to come will depend on whether this problem can be solved.for millions of years to come 中不定式to come 作定语，与前面的名词有逻辑上的主谓关系。
Eg: She is the last person to tell lies.3．The problem was that the earth became violent because it was not clear whether the solid shape was to last or not.The problem was that …, that 引导表语从句，that 只起连接作用，无意义，但不能省略。
高中英语Unit4AstronomythescienceofthestarsSectionⅣGrammarⅠ.完成句子1．他在这场事故中幸免于难，真是奇迹。
That he survived the accident is a miracle.2．他为什么又是如何去了美国至今还是个谜。
How and why he went to America is still a mystery.3．学生们需要的是知识。
What the students need is knowledge.4．任何一个违反此规章制度的人都要受罚。
Whoever breaks the rule shall be punished.5．令人惊奇的是玛莉竟然获得了第一名。
It is surprising that Mary should have won first place.Ⅱ.阅读理解AHave you come across much western children's literature?Most English speaking children grow up with the same delightful set of fictional (小说的) characters.The Winnie the Pooh stories involve a strange selections of animals such as a kangaroo, a pig, a donkey, a tiger, an owl and a bear, who live together in a wood, leading fairy ordinary lives.Far more exciting and dangerous events take place in The Wind in the Willows，the story of the foolish Mr.Toad and all his adventures.Talking animals is also the main characters in The Jungle Book and the Just So Stories.In the latter we find lots of imaginative explanations as to why the world is like what it is.Far more laughter comes from Roald Dahi's Charlie and the Chocolate Factory.Whillie Wonka is the perfect adult in the eyes of children with all his clever ideas and endless supply of sweets.Also much loved is Bilbo Baggins, the funny little rabbit, who ends up having adventures with wolves and dragons.Of course, the stories go on in the much more serious The Lord of the Rings，better read a few years later.A new star in the world of magic and children's fiction is Harry Potter，the schoolboy who learns spells rather than maths.Adventures books remain popular, too.Although well over a century old now，Treasure Island is still an enthralling story with young Jim Hawkins dealing with secret maps and pirates.Such books make childhood a time of wonder and imagination.1．Which of these is NOT mentioned as a character in The Winnie the Pooh stories?【解析】细节理解题。
Unit4 Astronomy:thescienceofthestarsⅠ.阅读理解AYou'd like to employ a person to help take your business to th e next level, but you may find that there are a large number of employment websites on the Internet. Which one is your best choice? Here are four websites (in no particular order) that ca n help you get into a pool of job applicants (申请人)．LinkedInAs you probably already know, LinkedIn is a site where job applicants post resumes (简历) and exchange ideas. The site has more than 135 million members, many of whom may be looking for a new position. The cost to post a job opening on LinkedIn depends on the ge ographic location of the position. For example, in the Greater Pittsburgh area, a 30day job posting costs $195.CraigslistCraigslist isn't just a place for finding an apartment or sellingyour old couch. The website has an area devoted to employ ment in big cities. Employers can post jobs to find suitable em ployees. Posting in some markets is free, but in others, it cost s $25 to $75.MonsterFounded in 1994, Monster has grown to one of the most popu lar employment websites. It offers pages of advice about care er management and employment searches. Monster also pro vides apps for mobile phones, making it more convenient for people to post their job openings. Job postings on Monster co st from $210 to $395.JobsterJobster users can create interesting online profiles (简介) containing information about employment and educational history. The site uses an active method in which employers c an contact interested applicants. Employers can post as many jobs as they want for only $75 per month.【文章大意】本文主要介绍了四个可靠的招聘网站。
