【知識點詳解】仁愛八年級Unit4topic1知識點詳解及練習

1、unit4 our worldtopic1 which do you like better,plants or animals?一重點短語：1.成千上萬的 thousands of 2 . 滅絕 die out 3.以.為食 feed on4.越來越少 less and less 5. 處于危險狀態(tài) be in danger 6. 考慮，思考think of /about 7.在農(nóng)村 in the countryside 8. 給某人提供某物provide sth for sb 9.與.分享.share sth withsb10.在.扮演重要角色 play an important part

2、 /role 11.和.一起玩 play .with12. be important to sb 對某人來說是重要的13.in the south ofchina在中國的南部14. 在數(shù)量上越來越少 become fewer and fewer in number15欣賞自然之美 enjoy the beauty of nature16. 為了他們的毛皮和骨頭殺了他們 kill them for their fur and bones16. 眾所周知 as we know 18. 儲存水 hold the water 19.保持水循環(huán) keep the water cycling 20.控制氣

3、候 control the climate二重點句子：1. i think the countryside is much quieter than the city.1. he is lazier than me.1. i think roses are the nicest of all the flowers.2. as we know ,they are both important to us .5. we share the same world with them.6. because animals are our friends .they make me happy.7.

4、which kind of animals do you like better, frogs or snakes? 8.熱帶雨林的重要性的句子。課本 p85三. 基礎詞匯和句型： think about意為 “考慮，思考”時， 與 think of 可以互換使用。后面所接動詞要用 ing 形式。注意： think of 還有 “認為，想起 ”,這時二者不能互換使用。 1. i am thinking about _ (get)a new dictionary.2. 讓我考慮一會兒。let me _ _ it for a while.3. 你覺得這場籃球賽怎么樣？what do you _ _

5、 the basketball match?2. 她 經(jīng) 常 想 起 她 的 朋 友 安 娜 。 she often _ _ her friend,anna.鏈接 : think over 仔細考慮write down your answers.e.g. you had bettter think it over and then in the countryside 在鄉(xiāng)村 in the city 在城市 enjoy sth. 喜歡.，享受.；enjoy doing sth. 喜歡做某事；enjoyoneself =have a good time 玩得開心lots of people en

6、joy _(listen ) to music to relax themselves. nature 名詞， “ 自然，自然界 ” 。 e.g. its important for us tokeep the balance (平衡)of nature.natural 形容詞， “自然的，天生的” e.g. he is a natral musican. lucy dances very well ,she is a_(nature) dancer. “of all/the +基數(shù)詞”,表示 “在所有/三者或三者以上之中” ,應用最 高級。e.g. kate runs the fastest

7、 of all.he is _ of all. a.tall b.taller c. the tallest sheep 綿羊，單復數(shù)同形，類似的詞還有 deer, chininese ,japanese as we know ,they are both important to us1. as we know 眾所周知 e.g. as we know, water is very important to us.2. both 兩者都，常用的結(jié)構(gòu)有 both .and , 其后的謂語動詞要用復 數(shù)。both he and his father _ (want) to visit beiji

8、ng on holiday. 3. be important to sb 對某人來說是重要的。your idea is very important _ us. we should follow it. share .with 意為 “與.分享.，和.共用” e.g. would you liketo share the cake with your brother?外面下雨了，你愿意我和你共用一把傘嗎？ its raining outside, would you like to _ your umbrella _ me. or 的用法1. 意為 “或者”時,表示選擇關(guān)系2. or 還意為

9、“否則 ”,表示轉(zhuǎn)折關(guān)系。but “但是 ”,表示轉(zhuǎn)折。and 表示并列或承接關(guān)系。a. be quick,_ well miss the flight to hainan island. a.or b.but c.anda. studay hard, _ you will fall behind.(or,but ,and)a. money is very important ,_ its not be the most important thing. (or,but ,and)b. which do you like better, the moon _ the sun? (or,but

10、,and) like .better “更喜歡 .”,常用于兩者之間的比較。e.g. which doyou like better, basketball or football?like.best “最喜歡”,常用于最高級中。e.g. which subject do you like best? 譯：_which kind of music do you like _(good) ,pop music or classical music? cover 作動詞，意為 “ 覆蓋，遮蓋 ” 。 e.g. she covered her face with her hands. 譯：_ 作名詞

11、，意為 “蓋子，封面 ” ,e.g. the book needs a new cover. 譯：_be covered with “ 被.所覆蓋” e.g. the road was covered with snow. 譯：_most of the earth is _ with water. a. cover b. covered c.covering earth 1.the earth 地球 2.泥土 e.g. sandy earth 沙土on earth 1.（用于加強語氣）究竟，到底 e.g.what on earth is the problem? 譯：_2. 在世界上,=in

12、the worldon the earth1.在世界上，= in the world 2.在地球上e.g. he is the luckiest man on （ the) earth. 譯 ： _ wood 作不可數(shù)名詞，意為“ 木材，木料 ” 。 e.g. the chair ismade of wood.譯：_ 意為“樹林”，可數(shù)名詞 e.g. there is a wood near my house. _譯：形容詞是 wooden “木制的，木頭的” e.g. a wooden chair .譯： _i like the _(wood ) table very much .its v

13、ery nice. hundred,thousand,million 的用法1. 這些詞表示不確定數(shù)目時，可與 of 構(gòu)成短語，但要切記，這些 詞之后要加 “s” ,e.g. millions of2. 表示確定數(shù)目時，要在這些詞前加具體的數(shù)目，但這些詞之后 不加“s”, 且不需要加 of.a. 我的 mp4 花了我 200 元。 my mp4 cost me two _ yuan.a. _ parts make up the machine. a.hunderds of b.hundred of c. two hunderds of they play an important part i

14、n controlling the climate.1.play an impotant part/role in (doing) sth 的角色。在.中扮演著重要電腦正在我們的日常生活中扮演著重要的角色。computers _ _ _ _ _ inour daily life2. control 動 詞 ， “ 控 制 ” ， 過 去 式 controlled , 現(xiàn) 在 分 詞 controlling, smaller and smaller “ 越來越小” 比較級+and+ 比較級，表示“越來越.fatter and fatter 譯：_ stronger and stronger 譯：

15、 _鏈接： 部分雙音節(jié)或多音節(jié)的形容詞要表達“越來越.”時，則要同 “more and more +多音節(jié)的形容詞”e.g. more and more interesting 譯：_ moreand more beautiful 譯：_如果要表達“越來越不.，則用 “l(fā)ess and less +多音節(jié)的形容詞”e.g. less and less careful 譯：_ provide sth for sb =provide sb with sth 為某人提供某物練習：1.政府為他們提供了房子。the government _ them _ houses.=the government _

16、 houses_ them.2. 超市應該為我們提供各種健康食品。_ us _ _ _ healthy food.supermarket should3. 120 必須為病人提供及時的救助。120 must _ help _ the patients _ _. feed 作動詞，意為 animals.“ 喂，飼養(yǎng) ” e.g. my job is to feed thefeed on 以.為食 e.g. sheep feed on grass.the animals _ grass best. kate likes them very much. a. feed on b.feeds on c

17、. fed on be in danger “處于危險中”，be in +名詞，用來表示“某人/某物處于.中。類似的短語還有 be in trouble，danger 是名詞，形容詞是 dangerous1. tigers are _ animals .(dangerous,danger)2. she is a kind woman, and she often helps people_. a.in dangerous b.in trouble c.in the trouble wolf 意為 “狼”，復數(shù)形式是 wolvesw_ are dangerous animals .you sho

18、ul keep away from them. in number 在數(shù)量上 in the south of 在.的南方。 類似的還有 in the east/west/north of在.的東方/西方/北方in the south of china =in south china “ 在華南 ” in 表示“在.范圍之內(nèi)”e.g. guangzhou is in the south of china.我們都知道四川在中國的西部。we all know sichuan is _ _ _ of china.四語法：形容詞，副詞的比較等級1.大多數(shù)形容詞和副詞有三個比較等級：1) 原級，即原形。e

19、.g. im tall.2) 比較級，表示“較” ,用于兩者之間的比較。 e.g. im taller.3) 最高級，表示 “最 ” ，用于三者或三者以上的比較 e.g.im the tallest.2.形容詞比較級最高級構(gòu)成：1) 規(guī)則變化1 一般在詞尾加 -er 或 -est. e.g. young -younger- youngest； long-longer-longest2 以字母 e 結(jié)尾的詞，加-r 或-st. e.g. large-larger-largest3 以“輔音字母y” 結(jié)尾的雙音節(jié)詞，先改“y”為 “i”，再加-er 或 -est.e.g. easy-easier-

20、 easiest；hungry- hungrier-hungriest重讀閉音節(jié)只有一個輔音字母時，應先雙寫輔音字母，再加 -er 或-est.e.g. big -bigger -biggest ；red- redder- reddest部分雙音節(jié)詞或多音節(jié)詞前面加 more ,most.e.g. interesting-more interesting-most interesting; famous-more famous-most famous2）不規(guī)則變化：good/well-better-best；bad/ill-worse-worst；many/much-more-mostlitt

21、le-less-least ； far-farther/further-farthest/furthest; old-older/elder-oldest/eldest兩好，兩多、兩壞、兩多、 一少、一老 、一遠.3.形容詞、副詞比較等級的用法1) 原級:可用 very, quite, so, too,等詞修飾. jim is _ tall.(very, much)2) 比較級:1 可用 much ,even, a lot ,a little 等修飾. he is _ richer than me. (very, much)2 主要句型有：a. 比較級+than e.g mary is muc

22、h younger than sue.b. 疑問句+動詞+比較級, a or b? e.g. who draws better ,tom or jim?b. 比較級+ and+比較級 e.g. the days are getting shorter and shorter.c. more and more+原級（多音節(jié)/雙音節(jié)）e.g. the girl is becoming more and more beautiful.e. 比較級+than the other + 名詞復數(shù)e.g. he is taller than theother boys in our class.f. 比較級

23、+than any other + 名詞單數(shù) other boy in our class.in our class.e.g. = he is taller than any=he is the tallest boyg. 數(shù)字+比較級+than+比較對象 me.e.g. he is one year older thanh. the +比較級 ， the +比較級越就越 e.g. the more you eat ,the fatter you will be.the more, the better.越多越好。i. the +比較級 of the two/ twins 二者/雙胞胎中比較的

24、那個。e.g. lucy is the _ of the twins. 露西是雙胞胎中比較 高的那個。he is the _ _ of the two. 他是兩個 人比較帥的那個。3）最高級 : 形容詞的最高級要加定冠詞 the , 副詞最高級可省略 the, 主要句型有:1 the + 最高級 + in/of e.g. my mother is the busiest in my family.2 疑問句+最高級， a, b or c? e.g. which book is the most interesting，lucys ,lilys or toms?3 the + 序數(shù)詞 + 最高級

25、 表示 “ 第幾 .” e.g. huanghe is thesecond longest river in china.表示 “ 最 之一 ” one of + 最高級 + 復數(shù)名詞 huanghe is one of the longest rivers in china.4.使用比較級和最高級的幾個注意點1 原級，比較級和最高級前的修飾詞不可誤用.2 最高級后的介詞 in 與 of.e.g.a. in 表示 “ 在 內(nèi) ( 指某范圍內(nèi) )” 可以跟表示單位 ,組織 , 時間等 單數(shù)名詞. e.g. in my family ,in our class, in china.b. of 表示

26、屬性(指在同類的人,物中)后可接+基數(shù)詞+名詞復數(shù) / all +the +復數(shù)名詞/allthe +基數(shù)詞 / thee.g. of the three, of the three boys, of all, of all the animals 形容詞的最高級前要用 the配套練習：i.改錯1. lesson 9 is more easier than lesson 10.2. my mother is younger than your.3. he is one of tall boys in his class.4. the boy doesnt draw much well.5. b

27、etty is the youngest on the three girls.6. tom runs faster than the other boy in his class.7. mother is the busiest of my family.8. jim is shorter of the two boys.9. you can jump very higher on the moon than on the earth.ii.單項選擇：( )1.jay chou is one of _ singers in china? a. popular b.more popular c

28、. the most popular( )2.changjiang river is the third _ cities in the world. a. long b. longer c. longest( )3.which room do you like _ ,this one or that one? a. well b. better c. best( )4.who runs _ of the students? a. quick b. quicker c. most slowly( )5.aunt mary has _ money, but her husband has _.

29、a. many；more b. much; more c. lots of; most( )6.the pen is than that one. a. more cheap b. quite cheaper c. much cheaper( )7.its toofor you to do that. a. easy b. more dangerous c.harder( )8.linlin is _ girl in this class. a. beautiful b. more beautiful c. the most beautiful( )9.this story is _ of t

30、he two. a. exciting b. more exciting c. the more exciting( )10.lucy is taller than any other _ in her class. a. girl b. a girl c.girls五鞏固練習i.單項選擇：( )1.-guangan is a beautiful city, isnt it? -yes. there are about two _ visitors here every week.a. thousands of b. thousands c. thousand( )2.you can choose to watch tv at home_ go shopping with me. a. and b. but c. or( )3. farmers have become _ in our hometo