9AUnit4知识点梳理

1、精品文档 九年级第一学期牛津英语知识点梳理 Unit 4 Computers i.词汇部分 1. 单词 考纲单词 1) scree n n. 屏幕 2) depend V. 依靠；依赖 3) com mon adj. 常见的；普遍的 4) kno wledge n. 知识；学问 5) print V. 印刷；打印 6) operate V. 操作；控制；使运行 7) spaceship n. 宇宙飞船；航天器 8) order n. & v. 订购 9) length n. 长度 10) seat n. 座位 11) dista nee n. 距离；间距 非考纲单词 12) * rec

2、og nize V. 辨认出；认识 精品文档 13) * desktop n. 台式电脑 14) * laptop n. 便携式电脑 15) * palmtop n. 掌上电脑 16) * tiny adj. 极小的；微小的 17) * unaware adj. 没意识到；未察觉 ) 18) * rarely adv. 罕有；很少；不常 19) * importantly adv. 重要地 20) * aeroplane n. 飞机 21) * meaning n. 意义；意思 22) * comma nd n. 命令；指令 23) * CD-ROM n. 只读光盘 24) * DVD-ROM

3、 n. 数字只读光盘 精品文档 25) * writing n. 文章；著作 26) * aware adj. 意识到 27) * blank adj. 空白的 28) * supply n. 贮备；供应量 29) * con tact n. 联系人 30) * referenee n. 编号；参考 31) * quantity n. 数量 32) * peak n. 山顶；山峰 33) * court n. 公寓大楼 依靠；依赖 暂时；眼下 如此以至于 玩耍，摆弄 能够（有能力） 例如 与 . 谈话 听 非考纲词组 9) * (be) un aware of 10) * com mon kn

4、owledge 11) *be small eno ugh to put in your pockets2. 词组 考纲词组 1) depend on 2) for the time being 3) so that 4) play with 5) be able to 6) for example 7) talk to 8) listen to 没意识到；未察觉 常识 足够小放进你的口袋 精品文档 12) *like a bar of chocolate 像一块巧克力 13) *operate railways 运行铁路 14) *fly areopla nes and spaceships

5、 开飞机和飞船 15) *call them electr onic brains 称它们为电脑 16) *the an swer to this questi on 这个问题的答案 17) *create new ideas 产生新想法 18) *raise some in terest ing questi ons 提出一些有趣的问题 19) *cha nge our lives 改变我们的生活 20) *help you recog nize your voice 帮助你识别你的声音 21) *obey your comma nds 遵循你的指令 22) *write your lett

6、ers 写你的信 23) *hold millions of pages of writing 容纳成千上万页文章 24) *read about 读到；查阅到 25) *since the n 自此以后 3.英英解释 II.重点难点 1. 重点词汇 考纲词汇 1) knowledge n.知识 1) obey V. follow a comma nd or order 服从；听从；顺从 2) operate V. use or con trol a mach ine 操作；控制；使运行 3) type V. write using a keyboard of typewriter 打字 4)

7、 realize V. become aware 意识到 5) raise V. put forward 提出 6) depe nd on n eed 依靠；依赖 7) for the time being for now and some time into the future; at prese nt 暂时；眼下 非考纲词汇 8) * comma nd n. order or in struct ion 命令；指令 9)* desktop n. a full-sized computer with a separate mon itor and keyboard 台式电脑 10)* la

8、ptop n. a small computer that you can carry around easily 便携式电脑 11)*rarely adv not ofte n; seldom 罕有；很少；不常 12)*recog nize V. know and ide ntify 辨认出；认识 13)*super adj. excelle nt 优秀的；极好的 14)*t iny adj. very small 极小的；微小的 15)*program n. a set of in struct ions which can make a computer work 程序 16)*com

9、mon kno wledge someth ing known by most people 常识 考纲词汇 17)* un aware of not knowing about 没意识到；未察觉 精品文档 know (kn ew, known) v. 了解；知道；认识 2) calculator n.计算器 calculate v. 计算 3) importantly adv.重要地 important adj.重要的 importanee n.重要性 4) meaning n. 意思 mean (mea nt, meant) v. 意味着；意思是；表示 . 的意思 5) able adj.

10、能够的；有能力的 unable adj. 无能的 enable v.使 . 能够 ability n. 能力； 才能 6) interesting adj.有趣的 interested adj.感兴趣的 interest n.兴趣；趣味 7) life n.生命 lives pl. 8) write v.写 writer n. 作家 writing n. 文章；著作 非考纲词汇 9) unaware adj.没意识到；未察觉 aware adj.意识至察觉 (be) unaware of/(be) aware of没意识到；未察觉/意识到；察觉 10) probably adv.可能地 pro

11、bable adj.可能的 11) rarely adv.罕有；很少；不常 rare adj.罕有的 2. 重点句型 1) Since then computers have become smaller and smaller. ? 连系动词 be, become, get, turn, Iook, feel, sound, smell, taste, seem + adj. e.g. It will get hotter this summer. The moon cake tastes too sweet. 学生易将其当行为动词，后跟副词，可尝试变为词组来识记，并配以练习反复操练。 2)

12、 They are small enough to put in your pocket like a bar of chocolate. ? adj. /adv. + eno ugh + n. 足够 e.g. The boy is not old eno ugh to drive the car. We have eno ugh time to finish our homework. 学生易将形容词和名词与 enough的位置搞错，可尝试用举例或比较等方法区分。 3) Other kinds of computers are so tiny thaLyou may be un aware

13、of them. ? sothat+否定句=tooto 如此 . 以至于;太 不 so that + 肯定句=adj./adv.+ eno ugh (for sb.) to e.g. He is so young that he can go to school. 他不够年龄上学。 =He is too young to go to school. =He is not old eno ugh to go to school. 学生在句型转换中易用错 tooto和adj./adv. + enough (for sb.) to，提醒学生先读懂 句意，再判断用何种结构。 4) What kind

14、of jobs can a computer do? 精品文档 ? 问种类用 what kind of提问 e.g. What kind of films do you like to watch? 提醒学生注意 what kind of跟可数名词复数。 5) It is a com mon kno wledge that computers are super calculators. ? It is a com mon kno wledge that =As we all know, 众所周知 提醒学生后跟句子，并注意单词拼写。 6) However, one day computers

15、may be able to do most things that a huma n brain can do and even do them better. ? be able to能够(有能力) 帮助学生通过举例和比较的方法区别 be able to与can的用法： be able to强调通过努力而获得的能力，而 can则强调自身已具有的能力。 e. g. She can sing the song in English.她能用英语唱这首歌。 He will be able to si ng this song in En glish in a few minu tes too. 几

16、小时之后，他也能用 英语唱这首歌。 be able to各种时态均有；而 can只有一般现在和一般过去两种时态。 e.g. I could help you last ni ght, but you did n 昨天晚上我能帮你，而你又没来。 Can you see it there?你能看见它在那儿吗？ He is / was / will be able to help you. 他能帮你的忙。 can可用于表示可能性，推测，允许等情况，而 be able to通常不这样用。 7) For example, they may be better tha n doctors at doing

17、 their job. ? be good/poor at doing sth.擅长/不擅长做某事 e.g. He is good at singing. She is poor at swim ming. 学生易用错介词 at,或不用动词-ing形式，可尝试变为词组来识记。 8) What will happe n itcomputers can do our jobs? ? if引导条件状语从句，主句用一般将来时，从句则用一般现在时。 e.g. If it doesn rain tomorrow, we will go to the park to have a picnic. 学生易用错

18、时态，识记口诀“主将从现” ，并配以练习反复操练 9) Computers may cha nge our lives, but will they make them better? ? make sb. /sth. + adj.比较极 使. 更. e.g. Let try our best to make our city better. 学生易用错该结构，尝试通过举例和操练帮助其掌握用法。 10) A DVD-ROM can hold millions of pages of writi ng, and can also contain pictures, videos and soun

19、 ds. ? hundred/thousand/million前无具体数字后加 s和of,前有具体数字则不加。 e.g. Hun dreds of stude nts will go abroad to further their studies. Two thousa nd people watched the show. 学生易多加或漏加 s和of,提醒学生看清前是否有具体数字。 11) For example, you can use your computer to_read about a famous pers on from history. ? use sth. to do s

20、th. = use sth. for doing sth.用某物做某事 精品文档 sth. be used to do sth. = sth. be used for doing sth.某物被用来做某事 e.g. You can use a dictionary to look up new words.= You can use a dictionary for looking up new words. A dict ionary can be used to look up new words. = A dict ionary can be used for look ing up n

21、ew words. 帮助学生通过举例和操练掌握结构间的转换，注意动词的变化。 3. 语法：Comparison of adjectives/adverbs形容词、副词的比较级和最高级 1）形容词、副词的比较级和最高级的构成规则 一般单音节词和双音节词，比较级在原级后面加 -er，最高级在后面加-est e.g. small 宀 smaller smallest; short shorter shortest clever cleverer cleverest; n arrow n arrower n arrowest 以不发音e结尾的单音节词，比较在原级后加 -r，最高级在原级后加-st; e

22、.g. larger largerlargest; nice nicernicest 在重读闭音节（即：辅音+兀音+辅音）中，先双写末尾的辅音字母，比较级加 -er,最 高级加-est; e.g. big 宀 bigger 宀 biggest; hot hotter hottest; fat fatter fattest 以“辅音字母+ y”结尾的双音节词， 把y改为i，比较级加-er，最高级加-est; e.g. eas尸 easier easiest; heavy heavier heaviest; busyf busier busiest; happy happier happiest

23、一般多音节词，比较级在前面加 more，最高级在前面加 most; e.g. beautiful 宀more beautiful most beautiful; different more different most different 2）形容词、副词的比较级的用法：主要用来表示二者人或事物的比较，表示“更”的 意思。 “ A + be +比较级+ than + B ” 意思为“ A比B更 . ”。 e.g. This tree is taller than that one.这棵树比那棵树高。 “比较级 + and +比较级”或“ more and more +原级”表示“越来越 .

24、” e.g. It becomes warmer and warmer whe n spri ng comes. The wind became more and more heavily. 在含有or的选择疑问句中，如果有两者供选择，前面的形容词要用比较级形式。 e.g. Who is taller, Tim or Tom? “ the +比较级 . ,the+比较级”，表示“越 . 越 . ”。 e.g. The more money you make, the more you spe nd. The soon er, the better. 可修饰比较级的词有 a bit, a lit

25、tle, rather, much, far, a lot, any, still, even 等。 为了避免重复，在从句中常用 one, that, those等词来代替前面提过的名词。 e.g. The weather here is warmer tha n that of Shan ghai. The radios made in our factory are better tha n those in your factory. 3）形容词、副词的最高级的用法：主要用来表示三者或三者以上人或事物的比较，表示 “最”的意思。 句子中有表示范围的词或短语。如： of the three, in our class等等。 精品文档 e.g. He is the tallest in our class. 序数词修饰最高级。 e.g. Africa is the sec ond largest con ti nent. 4）形容词