八年级英语Topic2ImsuretherearenoUFOs湘教版知识精讲

1、初二英语初二英语 topic 2 im sure there are no ufos 湘教版湘教版【本讲教育信息本讲教育信息】一. 教学内容： topic 2 im sure there are no ufos section c 1. we can use the internet for finding a job. 我们可以利用网络找工作。 use sth for sth / doing sth 利用某物来做某事。for 为介词，后面接名词、代词或动名词结构，在此表目的，for 也经常表示原因。 如：thanks for helping me. 谢谢你帮助我。 （表原因） we use

2、the knife for cutting things. 我们使用小刀来切东西。 （表目的） 2. we shouldnt spend too much time on the internet. 我们不应该在因特网上花费太多的时间。 spend 的主语经常是人，用来表示花钱买东西或花费时间做某事。 即：主语spendtime/ moneyon sth/（in）doing sth 如：i spent 5 yuan on the book. 我花了 5 块钱买了这本书。 i spent 10 minutes （in）drawing a dog. 我花了 10 分钟画了一只狗。 3. we ca

3、n do shopping at home. 我们在家就能购物。 do shoppingdo some shoppingshop“购物，买东西”类似结构。 do readingdo some readingread“看书，阅读” do washingdo some washingwash“洗一洗，洗衣服” do cleaningdo some cleaningclean“打扫卫生” do runningdo some runningrun“跑步” 4. im glad to tell you i learned how to use the english-chinese dictionary

4、. 我很高兴地告诉你，我学会了怎样使用英汉词典。 how to do sth 如何去做某事，怎样去做某事，动词不定式短语由特殊疑问词与动词不定式构成。 如：can you tell me how to cook? 你能告诉我怎样去做饭吗？ i dont know whom to ask. 我不知道该去问谁。 they dont know where to go. 他们不知道该去哪里。 5. the words in dictionaries are listed in alphabetical order. 词典的词是以字母顺序排列的。 （1）list 动词，把列入一览表（目录、清单） 如：c

5、an you list your favourite food? 你能把你喜欢的食物列出来吗？ （2）in alphabetical order 按照字母顺序 6. when you look up a word in the dictionary, pay attention to the first letter of the word. 你查字典时，应注意单词的第一个字母。 （1）look up 查询，查找 look up a word in the dictionary“查字典” （2）pay attention to.“注意，留意，当心” you must pay attention

6、 to the teacher. 你必须注意听老师讲课。 pay attention to what you are doing. 注意你正做的事。 7. when two words begin with the same letter, you have to look at the second letter to find the word. 当两个单词都是同一个字母开头时，你就得看第二个字母来查找单词。 begin with.start with.“以开始” 如：the concert began with a piano solo. 音乐会以一首钢琴独奏曲开始。 the day b

7、egan with rain. 天亮时下着雨。 8. you should buy a good dictionary and give it a try. 你应该买一本好词典并试试看。 give it a try 是美国英语，试试看have a try section d 1. i pressed the “on”switch but nothing happened. 我按了“开”键，但它没反应。 switch 名词，开关，电闸；动词，打开，接通 happentake place 动词，发生 happen to sb/ sth发生 如：how did the accident happen

8、? 事故是怎样发生的？ what happened to you?你发生什么了？ if anything happens to him, let me know. 如果他发生什么事，请让我知道。 2. youd better ask our computer teacher for help. 你最好向我们的计算机老师求助。 ask（sb）for sth 向要 如：she asked me for a phone card. 她向我要了张电话卡。 you can ask your parents for money. 你可以向你的父母亲要钱。 grammar focus: 形容词的比较等级形式

9、 1. 英语中大多数形容词有原级、比较级和最高级的形式，表示三种不同的程度。如：tall高，taller 更高，tallest 最高。 2. 形容词比较级、最高级的规则形式 （1）一般在词尾加 er，-est 如：highhigherhighestclevercleverercleverest （2）以 e 结尾的加 r，st 如：nicenicernicestlargelargerlargest （3）以辅音字母y 结尾的单词改 y 为 i，再加 er，est。 busybusierbusiestheavyheavierheaviest （4）重读闭音节结尾，而末尾只有一个辅音字母的词，双写

10、这个辅音字母后再加er，est。 如：thinthinnerthinnestwetwetterwettest bigbiggerbiggesthothotterhottest （5）多音节词和部分双音节词前加 more，most 如：famousmore famousmost famous beautifulmore beautifulmost beautiful seriousmore seriousmost serious 注意，形容词最高级前要加定冠词 the。 3. 有一部分的形容词比较级和最高级形式是不规则的。 （1）有些单音节词、双音节词用 er，est 或 more，most 皆

11、可 如：free, clear, glad, shy, pretty, lively （2）goodwellbetterbest bad ill badlyworseworst many muchmoremost little fewless least farfartherfarthestfurtherfurthest latelatterlastlaterlatest 4. 形容词比较级的句型 （1）甲和乙相同，用 as原级as. 如：he is as old as i. 他和我一样大。 i am as tall as you. 我和你一样高。 （2）甲不如乙，用“not so / as原

12、级as.” 如：you are not so/ as clever as your brother. 你不如你哥哥聪明。 he isnt so/ as tall as you. 他不如你个子高。 （3）甲超过乙，用比较级than. 如：he runs faster than you. 他比你跑得快。 he is earlier than you. 他比你早。 5. 形容词的最高级，三者或三者以上相比较时用最高级形式，形容词最高级前面通常用定冠词 the最高级形式in（或 of，among）介词词组，如： she is the best student in our class. 她是我们班上最

13、好的学生。 he is the tallest among the boys. 他是男孩中最高的。 he is the busiest of the three. 他是三个人中最忙的。 6. 形容词的比较级可以用 much 或 a lot“得多” a little“一点儿” ，even“甚至，更”等副词修饰表示 he is much taller than i. 他比我高得多。 yesterday it was cold, but today it is even colder. 昨天冷，但今天更冷。 7. 形容词比较级表示“越来越” ，用“形容词比较级and形容词比较级”和“more and

14、 more原级”表示 如：days are getting longer and longer.白天越来越长。 its more and more important to protect our environment. 保护环境越来越重要。 8. 表示越越用 the比较级，the比较级表示。 如：the more, the better.越多越好。 the more you eat, the fatter youll be. 你吃的越多，你就会越胖。【模拟试题模拟试题】 （答题时间：40 分钟） i. 单项选择 1. we spent the whole day _ trees on th

15、e hill. a. plantedb. to plantc. plantd. planting 2. jack likes to make people _ and play jokes _ his friends. a. laugh, onb. to laugh, toc. laugh, withd. to laugh, with 3. are you _ your answer? a. sureb. sure toc. sure ford. sure of 4. id like to read books _ by bill gates. a. writesb. writtenc. wr

16、oted. writing 5. i was drawing a cat _ the teacher came in. a. whenb. whilec. butd. what time 6. its too dark. lets _ the lights. a. switch offb. switch on c. turn outd. turn down 7. people often _ some objects _ a ufo. a. mistake, asb. mistake, for c. mistakes, asd. mistakes, for 8. which would you

17、 like, coffee or tea? _ is ok. a. bothb. anyc. eitherd. none 9. he _ very well that day. a. was feelb. did feltc. wasnt feelingd. feels 10. i used to _ school when i was young. a. walkb. walk toc. walk ind. walk for ii. 完形填空 i think the best place to go on sunday 1 the zoo. when you are 2 , you can

18、go there with your family 3 the zoo, there are many animals: elephants, pandas, 4 , tigers and other animals. elephants are the 5 animal on land. i 6 there is a baby elephant in our zoo. so i want to 7 at it. linda wants to go with me. she says. “ 8 we go there together? ” “sure!”i say. “we will hav

19、e a good time there. but lets make 9 half past four. i have 10 homework to do.”（ ）1. a. doesb. arec. isd. is going to（ ）2. a. busyb. freec. youngd. clean（ ）3. a. inb. onc. ford. near（ ）4. a. monkeysb. monkiesc. lionesd. peacock（ ）5. a. youngestb. heaviestc. biggestd. tallest（ ）6. a. listenb. listen toc. hear ofd. hear（ ）7. a. looksb. have a look c. seed. watch（ ）8. a. canb. couldc. shalld. would（ ）9. a. usb. itc. themd. you（ ）10. a. a fewb. littlec. muchd. many iii. 用括号内所给词的适当形式填空