9AUnit4知識點梳理

1、九年級第一學(xué)期牛津英語知識點梳理Unit 4 Computersi. 詞匯部分1. 單詞考綱單詞1) scree nn.屏幕2) dependv.依靠；依賴3) com monadj.常見的；普遍的4) kno wledgen.知識；學(xué)問5) printv.印刷；打印6) operatev.操作；控制；使運行7) spaceshipn.宇宙飛船；航天器8) ordern. & v.訂購9) len gthn.長度10) seatn.座位11) distaneen.距離；間距非考綱單詞12) *recognizeV.辨認(rèn)出；認(rèn)識13) *desktopn.臺式電腦14) *laptopn

2、.便攜式電腦*palmtopn.掌上電腦*tinyadj.極小的；微小的*un aware)adj.沒意識到；未察覺*rarelyadv.罕有；很少；不常*importan tlyadv.重要地*aeroplanen.飛機(jī)*meaningn.意義；意思*commandn.命令；指令*CD-ROM*DVD-ROM*writingn.n.n.只讀光盤數(shù)字只讀光盤文章；著作*awareadj.意識到*blankadj.空白的*supplyn.貯備；供應(yīng)量*con tactn.聯(lián)系人*referencen.編號；參考*quan tityn.數(shù)量*peakn.山頂；山峰*courtn.公寓大樓15)16

3、)17)18)19)20)21)22)23)24)25)26)27)28)29)30)31)32)33)2. 詞組考綱詞組1)depend on依靠；依賴2)for the time being暫時；眼下3)so that如此以至于4)play with玩耍，擺弄5)be able to能夠（有能力）6)for example例如7)talk to與談話8)listen to聽非考綱詞組9)* (be) un aware of沒意識到；未察覺10)*com mon kno wledge常識11)*be small eno ugh to put in your pockets足夠小放進(jìn)你的口袋1

4、2)*like a bar of chocolate像一塊巧克力13)*operate railways運行鐵路14)*fly areopla nes and spaceships開飛機(jī)和飛船15)*call them electr onic brains稱它們?yōu)殡娔X16)*the an swer to this questi on這個問題的答案17)*create new ideas產(chǎn)生新想法18)*raise some in terest ing questi ons提出一些有趣的問題19)*cha nge our lives改變我們的生活20)*help you recog nize y

5、our voice幫助你識別你的聲音22) *write your letters寫你的信23) *hold millions of pages of writing容納成千上萬頁文章24) *read about讀到；查閱到25) *since then自此以后遵循你的指令21) *obey your comma nds3. 英英解釋考綱詞匯1)obeyV.follow a comma nd or order服從；聽從；順從2)operateV.use or con trol a mach ine操作；控制；使運行3)typeV.write using a keyboard of typew

6、riter打字4)realizeV.become aware意識到5)raiseV.put forward提出6)depend onn eed依靠；依賴7)for thetimefor now and some time in to the暫時；眼下beingfuture;at prese nt8)*comma nd n.order or in struct ion命令；指令9)*desktopn.a full-sized computer with a臺式電月腦非考綱詞匯separate mon itor and keyboard10)*l aptopn.a small computer t

7、hat you can便攜式電腦carry around easily11)*rarelyadv.not ofte n; seldom罕有；很少；不常12)*recog nizeV.know and ide ntify辨認(rèn)出；認(rèn)識13)*superadj.excelle nt優(yōu)秀的；極好的14)*t inyadj.very small極小的；微小的15)*programn.a set of in struct ionswhich can程序make a computer work16)*com monsometh ing known by most people常識kno wledge17)*

8、 un aware ofnot knowing about沒意識到；未察覺II.重點難點1. 重點詞匯考綱詞匯1) knowledge n.知識know (kn ew, known) v. 了解；知道；認(rèn)識2) calculator n.計算器calculate v.計算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.意味著； 意思是； 表示 的意思5) able adj.能夠的；有能力的unable adj. 無能的 enable v. 使能夠 ab

9、ility n. 能力； 才能6) interesting adj.有趣的in terested adj.感興趣的 in terest n.興趣；趣味7) life n.生命lives pl.8) write v.寫writer n. 作家 writing n. 文章；著作非考綱詞匯9) unaware adj.沒意識到；未察覺aware adj. 意識至U;察覺be) unaware of/(be) aware of 沒意識到；未察覺/意識到；察覺10) probably adv.可能地probable adj.可能的11) rarely adv.罕有；很少；不常rare adj. 罕有的2

10、. 重點句型1) Since the n computers have become smaller and smaller.+ adj.連系動詞 be, become, get, turn, Iook, feel, sound, smell, taste, seeme.g. It will get hotter this summer.The moon cake tastes too sweet.學(xué)生易將其當(dāng)行為動詞，后跟副詞，可嘗試變?yōu)樵~組來識記，并配以練習(xí)反復(fù)操練。2) They are small enough to put in your pocket like a bar of c

11、hocolate.? adj. /adv. + eno ugh + n. 足夠e.g. The boy is not old eno ugh to drive the car.We have eno ugh time to finish our homework.學(xué)生易將形容詞和名詞與enough的位置搞錯，可嘗試用舉例或比較等方法區(qū)分。3) Other kinds of computers are so tiny that you may be un aware of them.? sothat+否定句=tooto 如此以至于;太不so that + 肯定句=adj./adv.+ eno u

12、gh (for sb.) to e.g. He is so young that he can 'go to school.他不夠年齡上學(xué)。=He is too young to go to school.=He is not old eno ugh to go to school. 學(xué)生在句型轉(zhuǎn)換中易用錯tooto和adj./adv. + enough (for sb.) to ，提醒學(xué)生先讀懂句意，再判斷用何種結(jié)構(gòu)。4) What kind of jobs can a computer do? 問種類用 what kind of提問e.g. What kind of films d

13、o you like to watch?提醒學(xué)生注意 what kind of 跟可數(shù)名詞復(fù)數(shù)。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,眾所周知 提醒學(xué)生后跟句子，并注意單詞拼寫。6) However, one day computers may be able to do most things that a huma n brain can doand even do them better.? be a

14、ble to 能夠(有能力) 幫助學(xué)生通過舉例和比較的方法區(qū)別be able to與can的用法： be able to強(qiáng)調(diào)通過努力而獲得的能力，而can則強(qiáng)調(diào)自身已具有的能力。e. g. She can sing the song in En glish.她能用英語唱這首歌。He will be able to si ng this song in En glish in a few minu tes too.幾小時之后，他也能用英語唱這首歌。 be able to各種時態(tài)均有；而 can只有一般現(xiàn)在和一般過去兩種時態(tài)。e.g. I could help you last night, bu

15、t you didn 'come.昨天晚上我能幫你，而你又沒來。Can you see it there?你能看見它在那兒嗎？He is / was / will be able to help you.他能幫你的忙。 can可用于表示可能性，推測，允許等情況，而be able to通常不這樣用。7) For example, they may be better than doctors at doing their job.? be good/poor at doing sth.擅長/不擅長做某事e.g. He is good at singing.She is poor at s

16、wim ming. 學(xué)生易用錯介詞 at，或不用動詞-ing形式，可嘗試變?yōu)樵~組來識記。8) What will happe n if computers can do our jobs? if引導(dǎo)條件狀語從句，主句用一般將來時，從句則用一般現(xiàn)在時。e.g. If it doesn 'rain tomorrow, we will go to the park to have a picnic.學(xué)生易用錯時態(tài)，識記口訣“主將從現(xiàn)”，并配以練習(xí)反復(fù)操練9) Computers may change our lives, but will they make them better? mak

17、e sb. /sth. + adj. 比較極 使更e.g. Let ' try our best to make our city better.學(xué)生易用錯該結(jié)構(gòu)，嘗試通過舉例和操練幫助其掌握用法。10) A DVD-ROM can hold millions of pages of writing, and can also contain pictures, videos and soun ds.? hundred/thousand/million前無具體數(shù)字后加 s和of,前有具體數(shù)字則不加。e.g. Hun dreds of stude nts will go abroad t

18、o further their studies.Two thousa nd people watched the show.學(xué)生易多加或漏加s和of,提醒學(xué)生看清前是否有具體數(shù)字。11) For example, you can use your computer to read_about a famous person from history.? use sth. to do sth. = use sth. for doing sth.用某物做某事sth. be used to do sth. = sth. be used for doi ng sth.某物被用來做某事e.g. You

19、can use a dictionary to look up new words.= You can use a dictionary for look ing up new words.A dictionary can be used to look up new words. = A dictionary can be used for look ing up new words.幫助學(xué)生通過舉例和操練掌握結(jié)構(gòu)間的轉(zhuǎn)換，注意動詞的變化。3. 語法：Comparison of adjectives/adverbs形容詞、副詞的比較級和最高級1）形容詞、副詞的比較級和最高級的構(gòu)成規(guī)則 一般單

20、音節(jié)詞和雙音節(jié)詞，比較級在原級后面加-er，最高級在后面加-este.g. small smaller smallest; short shorter shortestclever cleverer cleverest; narrow narrower narrowest 以不發(fā)音e結(jié)尾的單音節(jié)詞，比較在原級后加-r，最高級在原級后加-st;e.g. large Targer Targest; nice Feer nicest 在重讀閉音節(jié)（即：輔音+兀音+輔音）中，先雙寫末尾的輔音字母，比較級加-er，最高級加-est;e.g. big Tbigger Tbiggest; hot Tiott

21、er Tiottest; fat TatterTattest 以“輔音字母+ y ”結(jié)尾的雙音節(jié)詞，把y改為i，比較級加-er，最高級加-est;e.g. easy Teasier easiest; heavy Tieavier Tieaviest;busy Tbusier Tbusiest; happy Tiappier Tiappiest 一般多音節(jié)詞，比較級在前面加more，最高級在前面加 most ;e.g. beautiful Tmore beautiful Tmost beautiful; differentTmore different Tmost different2）形容詞、

22、副詞的比較級的用法：主要用來表示二者人或事物的比較，表示“更”的意思。 A + be +比較級+ than + B ”意思為“A比B更”。e.g. This tree is taller than that one.這棵樹比那棵樹高。 “比較級+ and +比較級”或more and more + 原級”表示“越來越”e.g. It becomes warmer and warmer when spring comes.The wind became more and more heavily. 在含有or的選擇疑問句中，如果有兩者供選擇，前面的形容詞要用比較級形式。e.g. Who is t

23、aller, Tim or Tom? the +比較級，the+比較級”表示"越越”e.g. The more money you make, the more you spe nd.The sooner , the better. 可修飾比較級的詞有 a bit, a little, rather, much, far, a lot, any, still, even 等。 為了避免重復(fù)，在從句中常用one, that, those等詞來代替前面提過的名詞。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）形容詞、副詞的最高級的用法：主要用來表示三者或三者以上人或事物的比較，表示 “最”的意思。 句子中有表示范圍的詞或短語。如：of the three, in our class 等等。e.g. He is the tallest in our class. 序數(shù)詞修飾最高級。e.g. Africa is the sec ond largest con ti nent.4）形容詞、副詞的原級的用法 兩者相比（A=B ）,用as+原級+as "