Unit 3 The Earth单元知识归纳-2021-2022学年七年级英语上册牛津深圳版（广州沈阳通用).doc

1、沪教牛津版七年级上册Module2 The natural worldUnit 3 The Earth【目标】通过本单元的学习，学生的综合语言能力要达到以下语言能力目标:听:能听懂关于海洋的小测验说:能讨论我们能做什么来保护地球读:能读懂关于保护地球的小短文写:能运用所给信息写一篇关于保护地球的报告核心素养：目标了解中国古代有关自然、宇宙的神话故事【重点单词】掌握本单元重点单词的音、形、义、性、用101. earth地球2. quiz知识竞赛；小测验3. pattern模式；形式4. protect保护5. report报告6. part部分7. land陆地8. field田地；田野9. l

2、arge大的10. provide提供11. pollution污染12. burn燃烧13. energy能量；能源14. pollute污染15. into 到.里面；进入16. ground 地面17. kill 杀死18. must必须19. Important重要的20. fact事实21. kilometre公里22. own自己的23. catch捕捉24. few不多；很少25. away去别处26. problem问题；难题【重点短语】掌握本单元重点短语并能熟练造句1. provide. with.为.提供.2. put. into.把.倒入.3. throw away扔掉4

3、. be covered by由.覆盖5. on Earth在地球上6. in the sky在天空中7. make energy获取能源8. of course当然9. for example例如10. one quarter 四分之一11. three quarters四分之三12. at home在家13. throw.into.把.扔进.14. take a photo 拍照15. take a look at看一下16. come from来自17. how many多少18. find out查明19. different types of不同种类20. in the end 最后

4、21. stop doing sth停止做某事22. let sb. do sth.让某人做某事【经典句型】1. About 70% of the Earth is covered by water.2. There are also many people like you and me on Earth .3.The Earth provides us with air, water and food.4 We must stop doing these things5. It is important for us to protect the Earth for our future.

5、6. What is the weather like in different places on Earth?7.Do not throw rubbish into the river.8.Let me take a photo.9. H ere is a glass for you.10. What else can we do?【核心语法】熟练掌握本单元核心语法1.可数名词与不可数名词2. there be句型Period 1 Getting ready& Reading知识点一 protect 的用法Talk about what we can do to protect the E

6、arth.讨论我们能做什么来保护地球。protect在此处作及物动词，意为“保护”。We must protect the environment我们必须保护环境。拓展 protect的名词形式为 protection，意为“保护;防卫”。 protect sb./sth.from“保护某人/某物免受.”.练习:As common people，the medical workers choose to stand out and_others without thinking twice. They are the most beautiful angels. A. protect B. p

7、rotecting C. admire D. admiring知识点二 百分数的用法 About70% of the Earth is covered by water.地球大约70被水覆盖着。“百分数+of+名词”作主语时，谓语动词的单复数要与of后面名词的单复数保持一致。About 60% of the money is mine.大约60的钱是我的。90% of the students are good.90%的学生是好的。练习：用括号中所给词的适当形式填空。 60%of the teachers in our school_(be)young.知识点三 provide的用法The E

8、arth provides us with air, water and food.地球为我们提供空气、水和食物。provide在此处用作及物动词，意为“提供”，常与介词with/for连用， provide sb. with sth.= provide sth. for sb“为某人提供某物” The hotel provides guests with a shoe-cleaning service. The hotel provides a shoe-cleaning service for guests.该宾馆为客人提供擦鞋服务。拓展offer意为“提供”，强调“主动提供”，其常用短语

9、 offer sb.sth.= offer sth.to sb.意为“为某人提供某物”。练习： In the world,more than 30% of schools do not provide safe drinking water _about 570 million children.A. with B .for C. towards知识点四must的用法We must stop doing these things.我们必须停止做这些事情。must是情态动词，意为“必须”，没有人称和数的变化，其后跟动词原形。 I must study hard.我必须努力学习。拓展must的用法

10、:1)一般疑问句：将must提至句首，否定回答用 neednt/ dont have to/doesnt have to2)否定句:must后面加not, mustnt表“禁止”3)cant be表否定推测;must be:表示肯定推测,只用于肯定句中练习：一 Must I return the book to you now? _, you_.You can do it tomorrow. A. No, neednt. B. No, mustnt C .Yes,must知识点五句型It is+adj.+for sb.+to do sth.的用法It is important for us t

11、o protect the Earth for ou future.对于我们来说，为了我们的未来保护地球很重要。It is+adj.+ for sb.+ to do sth.意为“对某人来说做某事是.的”。其中it在句中作形式主语，后面的动词不定式短语作真正的主语。 It is important for us to learn English.对我们来说学英语很重要。拓展当形容词表示人的性格、品性时，介词用: of，It is +adj. +of sb.+to do sthIt is very kind of you to help me.你帮助我真是太好了。归纳总结It is+adj.+

12、for sb.+ to do sth.(adj.描述事物的特征）It is +adj. +of sb.+to do sth.(adj.描述人的品性及性格特征)练习：一 Do you like English?Yes. but I think_is a great challenge to learn the language well. A. that B. this C. it易错易混:对比辨析跳出陷阱 stop doing sth.与 stop to do sth.stop doing sth. sth.“停止做某事”，指停止stop后面的动作，doing sth.作宾语stop to d

13、o sth.“停下来做某事”，指停止做其他事情，开始stop后面的动作, to do sth.作目的状语练习： We must stop_ our rubbish int to the sea and under the ground. A. to put B. putting C. puts D. putPeriod 2 Listening& Grammar知识点一 分数的表达one quarter四分之一quarter为可数名词，意为“一刻钟;四等份之”three quarters四分之三拓展英语中分数用“基数词+序数词”表示，一般分子用基数词，分母用序数词;分子大于1时，分母用复数形式。

14、 one sixth六分之一 two thirds三分之二练习：There are fifty students in this class,_of them are boys, so the number of the boys is 30. A. three fifth B .three fifths C. three five二、 there be句型there be句型用法1)肯定式: There be+主语+介词短语.(注：be的选择由其后名词而定，有并列主语时，be动词采取“就近原则”)2)否定式: There be+not+主语+介词短语.肯定答句:Yes,there be.否定

15、答语:No, there+“be与not的缩写”.3)一般疑问式:Be+ there+主词+介词短语?4)一般将来时结构: There will be/There is going to be+主语+介词短语拓展there be与 have/has的区别: there be表客观存在，意为“某处有某人/物”;have/has表所属关系，意为“某人拥有某物”。 There is a computer on the desk.(并不说明电脑的主人是谁) I have a computer.(电脑是我的，无论它在什么地方)(注意)注意不要把 there be和have混用。 There has a

16、book on the desk. (错)练习：1.Sandy really likes eating meat,but she doesnt like eating_. A .breads B. vegetables C. chickens2. There_ more than two ways to solve this maths problem. A. am B. is C. are D. bePeriod 3 Speaking& Writing知识点一own的用法We can take our own shopping bags to the supermarket.我们可以带我们自

17、己的购物袋去超市。own作形容词，意为“自己的”。放在形容词性物主代词或名词所有格之后，加强语气。 I saw it with my own eyes.我亲眼看见的。拓展 on one s own意为“独自，独立地”。 Can you carry it on your own?你自己搬得动吗?可作及物动词，意为“拥有”。相当于have。 I own a new car.我有一辆新轿车。练习：根据汉语意思完成英语句子，每空一词。他能独立做这项工作。 He can do the work_ _ _.知识点二“比较级+and+比较级”结构fewer and fewer fish in the sea

18、 each year.每年海里的鱼越来越少 fewer and fewer意为”越来越少”，是“比较级+and+比较级”结构，用来表示事物本身程度逐渐变化的过程，意为“越来越.”。 The weather gets warmer and warmer.天气变得越来越暖和了。拓展“ more and more+形容词(部分双音节或多节词)原级”意为“越来越.”。I talked with my little uncle on the computer last night.The Internet makes the world_.A.small and small B. smaller and

19、 smallerC.small and smaller D. smaller and small知识点三 throw away的用法throw away a lot of rubbish every day每天扔掉很多垃圾。throw away意为“扔掉”，是“动词+副词”结构短语，若代词作宾语，则应将代词放在 throw和away之间。例：The books are very useful. Dont throw them away这些书很有用。不要把它们扔掉。 拓展throw.at.意为“朝.扔.”。例：You mustnt throw food at animals.你一定不能朝动物扔食

20、物。throw.to.投给 throw.at.投打练习：根据汉语意思完成英语句子，每空一词。在扔掉废物前进行分类是必要的。 Its necessary to divide the waste into different kinds before we_it_.易错易混:对比辨析跳出陷阱any与somesome常用在肯定句中，也可用于表示委婉请求或希望得到对方肯定回答的疑问句中均可修饰可数名词复数名词或不可数any常用在否定句和疑问句中I can do some kung fu .I cant do any kung fu.Can you do any kung fu?When Flight

21、3U8633 finally landed in Chengdu ,_of the women cried.Fortunately,_of the 1 19 passengers in the plane were hurt in the incident(事件).A. Some; none B. some; neither C. any; none D .any; neithertake,bring与gettake“带走;拿走”，指从说话处把某人或某物带走bring“带来”，指从别处把某人或某物带到说话者跟前get“去取或带来”，指去某地把某物取回来练习：Im sorry. I left m

22、y exercise book at home this morning.It doesnt matter. Dont forget_ it here this afternoon. A.to take B. get C. take D. to bringPeriod 4 More practice知识点一 keep的用法It keeps us alive.它让我们活着。“keep+sb./sth.:+形容词”结构意为“使某人或某物保持.”。 拓展keep的用法(1)keep+adj.保持.You should look after yourself and keep healthy.你应该照

23、顾自己并保持健康。(2) keep sb.doing sth.让某人一直做某事Please keep him waiting for me.(3) keep (on) doing sth.一直/继续做某事Dont keep watching TV.不要一直看电视。(4)keep sb.from doing sth.阻止某人做某事You shouldnt keep him from watching cartoons.你不该阻止他看卡通片。练习：We should keep the windows_in order to let the fresh air in. A.opened B. ope

24、ning C. open知识点二 in the end的用法In the end, only one sun remained.最后，只剩下了一个太阳。in the end意为“最后”，常常单独使用，其后不加of短语。相当于 at last或 finally In the end,we found the right way最后，我们找到了正确的路。 拓展 at the end of意为“在.末尾;在.尽头”，可指时间和地点。练习： How is your work going? It will be finished_ the end of this week. We must be on

25、time. A. at B. for C. on易错易混:对比辨析跳出陷阱三“找”：find out, find 与look for find out1)指经过观察、调查而发现真相、事实，含有“困难，曲折”之意;2)多指发现抽象的东西，其宾语常常是某种情况或事实 find非延续性动词,指“找到”，强调结果 look for延续性动词短语,强调“寻找”的动作练习：Tina comes to China in order to experience Chinese culture and _ which university is the best for her to attend. A. put out B. stay out C. find out D. run out