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1、2022年高中英语人教版必修3 Unit 4 Astronomy：the science of the stars period5 教案1考点1System n. 系统，制度，体制【教材原句】In our solar system eight planets circle around the sun.在我们的太阳系中，有八个行星围绕太阳运转【例句研读】The present system of funding for higher education is unsatisfactory. 目前高等教育_的经费体制并不令人满意。【答案】制度【归纳拓展】(1) systematic adj sy
2、stematically adv考点2 theory n. 理 论，学说【教材原句】However, according to a widely accepted theory, the universe beagn.然而，根据一个被广泛接受的理论，.【例句研读】Students learned the practical application of the theory they had learned in the classroom 学生们学会了将课堂上学到的_付诸实际应用。【答案】 理论【归纳拓展】in theory理论上 theoretical adj. theoretically
3、 adv.考点3.violent adj. 猛烈的；激烈的；强暴的 【教材原句】The earth became so violent that it was not clear whether the shape would last or not .【例句研读】 The _winds buried the village in sand.狂风把村子掩埋在沙中。The struggle became_.斗争变得越来越激烈了。【答案】(1) violent. (2) more and more violent【归纳拓展】(1)violently adv.猛烈地；凶狠地(2)violence n
4、暴力，暴行；(感情)强烈violence against暴力对抗 take.by violence抢夺 with violence猛烈地；强有力地 考点4Unlike prep. 不同，不像【教材原句】Unlike the earth, it had disappeared later.不像地球，它出现的晚一些。【例句研读】1.It is unlike Tom to behave so rudely;he is a person with a gentle manner of speaking. 行为那么鲁莽可不像汤姆,他是一个谈吐文雅的人。 2._his brother,he has a s
5、trong sense of humour. 和他哥哥不同,他很有幽默感。 【答案】（1）不像（2）Unlike 【归纳拓展】like prep. 像 v. 喜欢 dislike v. 不喜欢 alike adj. 相同的，相似的 likely adj. 可能的 unlikely adj. 不可能的 Its unlike sb. to do sth.做某事不像某人平常的样子 It is likely / unlikely that .很可能 / 不可能 sb. / sth. be likely / unlikely to do 可能做 / 不可能考点5harmful adj. 有害的 【教材原
6、句】what many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids in the oceans and seas.许多科学家相信的是水的持续存在允许地球溶解海洋里的有害气体和酸【例句研读】1. Smoking is extremely _to your health. 吸烟对身体极其有害。2. Is this harmful to animals? 这对动物_吗？【答案】（1）harmful（2）有害【归纳拓展】h
7、armless adj. 无害的 harm n. & V. 伤害；损害对有害 be harmful to do harm to / do . harm 对某人并无恶意mean sb. no harm 答案：1.harmful 2. do后加to 考点6 lay vt. 下蛋，放置 (laying, laid, laid)【教材原句】They produced young generally by laying dggs.他们通过下蛋生产下一代。【例句研读】She _ (lay) her pen in the box.【答案】laid【归纳拓展】思维拓展lie vi. 躺，位于 (lying,
8、lay, lain) lie vi. 撒谎 (lying, lied, lied) lay a good foundation打好基础 tell a lie to sb. / lie to sb.向某人撒谎 lie in位于、在于考点7exist vi. 存在，生存 【教材原句】6.They laid eggs too and existed on the earth for more than 140 million years. 它们也生蛋,在地球上生存了一亿四千多万年了。 【例句研读】Others believe that the moon _before the earth was f
9、ormed. 另一些人认为,地球形成前月球就存在。 We cant exist without food or water. 没有食物和水我们是不能_的【答案】(1) existed (2) 生存【归纳拓展】existence n.靠生存(生活) exist on 某地有，存在There exists 产生，开始存在 e into existence = e into being 考点8puzzle n谜；难题 vt.& vi. (使)迷惑；(使)为难【教材原句】.is one of the biggest puzzles that scientists found hard to solve
10、.是科学家们发现难以解决的重要难题之一。 【例句研读】Why Mona Lisa is smiling is still_ _. 为什么蒙娜丽莎在微笑还是个谜。 How to get enough money for my business is still a puzzle. 如何弄到我生意上所需的足够资金仍然是个_。 【答案】(1) a puzzle (2) 难题【归纳拓展】a word puzzle字谜 be in a puzzle不知如何是好 puzzling adj. 令人迷惑不解的(常修饰事物) puzzled adj. 感到迷惑不解的(常修饰人) be puzzled about
11、对感到迷惑不解 a puzzled look / expression迷惑的表情 考点9pull n. & vt. 拉(力)；拖；牵引力【教材原句】As the rocket rose into the air, we were pushed back into our seats because we were trying to escape the pull of the earths gravity.随着火箭升空，我们被重重地向后推在座位上，因为我们在尽力地逃离地球的引力。She would never forgive him.她将永远也不会原谅他的。【例句研读】(1) Someone
12、 pulled her hair 有人_她的头发。(2)I _a knife and threatened her. 我拔出刀威胁她。【答案】(1) 扯 (2) pulled【归纳拓展】pull out拔出，抽出, (车、船) 驶出 ，pull down拆毁，拉倒,拉下，降低 ，pull up(使) 停下 ，pull in（车）停下，进站，船 (到岸) ，pull on穿，戴 pull through. 度过难关,恢复健康巧学妙记pull away (汽车等)开走 pull down 拆毁；摧毁 pull in (车辆)进站停靠；靠边停靠pull out 驶出；拉出，拔出 pull throu
13、gh 康复；痊愈 考点10. mass n质量；团；块；大量【教材原句】If you are right，my mass will be less than on the earth because the moon is smaller and I will be able to move more freely.要是你讲得对，我的重量就会比在地球上小，因为月亮比 地球小，而我就能更自由地活动了。【例句研读】Her garden is a mass of flowers.她的花园里种满了花。【归纳拓展】a mass ofmasses of 大量的；许多的in the mass 大体上；大致上
14、the masses 大众；民众the mass of. 大部分 a mass of 和 masses of 后面可以接可数或不可数名词，作主语时谓语动词的单复数与 mass 的单复数保持一致。Masses of money _ (need)答案：are needed二、重点短语考点1in time及时；迟早，终于 【教材原句】They were in time to produce carbon, nitrogen, water vapour and other gases, which were to make the earths atmosphere. 【例句研读】The doctor came _to save her life. 医生及时赶来救了她的命。 Ill succeed in time. 我_会成功的【答案】（1）in time（2）最终【归纳拓展】in no time立刻；马上 at no time绝不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
