與enoughto與sothat的區(qū)別

1、too.to. 與 enough.to. 與 so.that.的區(qū)別 too+adj./adv. to+v.太.而不能做某事 例：He is too young to go to school. 他年紀(jì)太小還不能上學(xué)。 2.adj./adv.+enough to +v.足夠.而能做某事 例：He is old enough to go to school. 他足夠大了能上學(xué)了/他已到了上學(xué)的年齡了。 3.so +adj./adv.+that從句 如此.以致 例：He is so old that he can go to school. 通常來說，這三種句型可用于同義句轉(zhuǎn)換，具體如下： too

2、.to. =not 反義詞 enough to =so.that 否定句 例：He is too young to go to school. = He is not old enough to go to school. = He is so young that he can't go to school.too to . ; not enough toStep 1 看圖說話 利用課本P36頁的圖畫和提示詞練說 tooto do 和not enough to do 句子。如：1. The snake / dangerous/ hold . / The boy not braveTh

3、e snake is too dangerous to hold. The boy is not brave enough to hold it . 板書 tooto do 和not enough to do并讓學(xué)生明確這兩個(gè)短語的中文意思是 “太 而不能”。提醒學(xué)生觀察這兩個(gè)句子結(jié)構(gòu)中的形容詞用什么形式，to do中的do 可否變換形式。在準(zhǔn)確理解的基礎(chǔ)上繼續(xù)看圖說話。2. The girl / short / get on the elephant. / she / not / tall .3. The elephant / heavy / carry. / The boy / not s

4、trong.4. The elephant / fat / go through the gate. / The gate / not wide.5. The monkey / far away / get the bananas. / The bananas / not near.6. The cat/ slow/ catch the bird./ It / cannot run/ fast .Step 2 拋磚引玉 板書The snake is too dangerous to hold. The boy is not brave enough to hold it . (改為同義句)Th

5、e snake is so dangerous that the boy _ hold it.學(xué)生在理解的基礎(chǔ)上探求答案，在探求答案的過程中獲得新知。板書 so that + 含有cant / couldnt do的否定句等同于tooto do; not enough to do 同步操練：1. The girl is too short to get on the elephant. (改為同義句) The girl _ to get on the elephant. The girl _that she _ get on the elephant. The elephant is so t

6、all_ that the girl cant get on it . The elephant _ enough _ the girl _ get on. The elephant _tall _ the girl _ get on.完成句子后求異：與原句比較后發(fā)現(xiàn)：由too to do 結(jié)構(gòu)轉(zhuǎn)換為not enough to do 結(jié)構(gòu)時(shí)，要找到句中形容詞的反義詞。與比較后發(fā)現(xiàn)：so that + 含有cant / couldnt do的否定句結(jié)構(gòu)的句子，若主從句的主語不一致時(shí)，改寫為too to do 或not enough to do 結(jié)構(gòu)時(shí), 要在不定式to do前添for sb ，若

7、主從句的主語一致，則不須添for sb。如： He is so young that he cant go to school. (改為同義句)He too young to go to school .He not old enough to go to school.觀察 、 兩句可得：在too to do 或not enough to do 的句子中，若to do 的賓語與句子的主語相一致時(shí)，須省略it。 發(fā)散思維：若把句子改為過去時(shí)，應(yīng)該怎么辦？1. The girl was too short to get on the elephant. (改為同義句)The elephant w

8、as so tall_ that the girl couldnt get on it .2. He ran very fast. He couldnt stop. He ran too fast to stop. He ran so fast that he couldnt stop. (方法是句型轉(zhuǎn)換時(shí)要注意時(shí)態(tài)一致。)Step 3 鏈接中考 The panda is so fat that it cant go through the hole.(改寫為同一意思的句子)The hole _ such a fat panda to go through.The ice on the lak

9、e was so thin that people couldnt skate on it. (改寫為同一意思的句子)The ice on the lake was not _ enough _ people _.Mr. King is very busy at work. He cant take a holiday.(改為同義句)Mr. King is _ take a holiday.My grandfather is too old to travel around. (改為同義句)My grandfather is _ old _ he _ travel around any _.S

10、tep 4 鞏固練習(xí)My brother was so clever that he could work out the problem. (改為同義句)My brother _ work out the problem.The box isnt light enough for him to carry. (改為同義句)The box _ for him _ carry.He is very short . He cant reach the book on the shelf.(合并為一句)He is _ reach the book on the shelf.The water was

11、 so dirty. We cant drink it. (改為同義句)The water was too _ .The water in this river is very dirty. Fishes cant live in it.The water in this river is _ that fishes _ in it.My brother got up late yesterday. He was late for school.My brother got up _ thatPractice One :1. a. The box is so heavy that I can&

12、#39;t carry it. b. The box is _ heavy_ _ _ carry. c. The box is not _ _ for me to carry.2. a. The maths problem isn't easy enough for me to work out. b. The maths problem is _ difficult _ I can't work it out. c. The maths problem is _ difficult _ _ _ work out.3. a. The book is interesting en

13、ough foreverybody to read. b. The book is _ interesting_ everybody likes to readit. Practice Two:He is old enough to go to school. He is _ _ that _ _ go to school.2. She was so weak that she couldnt take care of her baby.She was _ weak _ take care of her baby.Practice Three:1She is so young that she

14、 cant go to school. She is _ _ _go to school.2The box is so heavy that he cant carry it. The box is_ _ _ _to carry3Xiao Lin is so old that he can go to school. Xiao Lin is _ _ _go to school.4The box is so light that he can carry it. The box is _ _ for him to carry.5The man is so old that he cant go

15、to work. The man _ _ _to go to work.6The desk is so heavy that I cant move it. The desk _ _ _for me to move.7He is not old enough to do the work. He is _ _ to do the work.8The problem is too difficult for me to work out. The problem _ _ _for me to work out.Practice Four:1. The book is interesting en

16、ough for everybody to read.The book is _ interesting _ everybody likes to read it.2. The boy is so short that he cant reach the buttons of the lift.The boy is _ short _ _ the buttons of the lift.The boy isnt _ _ _ _ the buttons of the lift.Too.to sothat enoughto 練習(xí)He is too young to go to school. 他太

17、年幼了以至于不能上學(xué)。= He isn't old enough to go to school. 他的年紀(jì)還沒有大到足以上學(xué)。= He is so young that he can't go to school. 他是如此的年幼，以至于他不能上學(xué)。1. He is old enough to go to school. He is _ _ that _ _ go to school.2. She was so weak that she couldnt take care of her baby. She was _ weak _ take care of her baby

18、. 一、sothat與tooto的轉(zhuǎn)換 當(dāng)that引導(dǎo)的從句為否定式且從句主語與主句的主語相同時(shí)，sothat可轉(zhuǎn)換為tooto結(jié)構(gòu)；若從句主語與主句的主語不相同時(shí)，sothat可轉(zhuǎn)換為toofor sb to結(jié)構(gòu)。例如： She is so young that she cant go to school. She is too young to go to school. The box is so heavy that he cant carry it. The box is too heavy for him to carry.二、sothat與enough to的轉(zhuǎn)換 1. 當(dāng)tha

19、t引導(dǎo)的從句為肯定式時(shí)，若從句主語與主句主語相同時(shí)，sothat可轉(zhuǎn)換為enough to結(jié)構(gòu)；若從句主語與主句主語不相同時(shí)，sothat可轉(zhuǎn)換為enough for sb to結(jié)構(gòu)。例如： Xiao Lin is so old that he can go to school. Xiao Lin is old enough to go to school. The box is so light that he can carry it. The box is light enough for him to carry. 2. 當(dāng)that引導(dǎo)的從句為否定式時(shí)，若從句主語與主句主語相同時(shí)，so

20、that可轉(zhuǎn)換為enough to的否定結(jié)構(gòu)；若從句主語與主句主語不相同時(shí)，sothat可轉(zhuǎn)換為enough for sb to的否定結(jié)構(gòu)。同時(shí)要注意，轉(zhuǎn)換后的形容詞（副詞）要用其相應(yīng)的反義詞。例如： The man is so old that he cant go to work. The man isnt young enough to go to work. The desk is so heavy that I cant move it. The desk isnt light enough for me to move.三、enough to的句式為否定式時(shí)，enough to可以

21、轉(zhuǎn)換為tooto結(jié)構(gòu)。但轉(zhuǎn)換后的tooto結(jié)構(gòu)中的形容詞（副詞）要用其相應(yīng)的反義詞。例如： He is not old enough to do the work. He is too young to do the work. The problem is too difficult for me to work out. The problem isnt easy enough for me to work out.改寫同義句，每空一詞。    1. The book is interesting enough for everybody to read.&#

22、160;   The book is _ interesting _ everybody likes to read it.    2. The boy is so short that he cant reach the buttons of the lift.    The boy is _ short _ _ the buttons of the lift.    The boy isnt _ _ _ _ the buttons of the lift.八年級(jí) so.that;

23、.enough.;too.to專項(xiàng)練習(xí)1.He is old enough to go to school. He is _ _ that _ _ go to school.2. She was so weak that she couldnt take care of her baby. She was _ weak _ take care of her baby.3.She is so young that she cant go to school. She is _ _ _ go to school.4.The box is so heavy that he cant carry it

24、. The box is _ _ for him_ carry.Xiao Lin is so old that he can go to school. Xiao Lin is _ _ _ go to school.6.The box is so light that he can carry it. The box is _ _ for him _ carry.7.The man is so old that he cant go to work. The man _ _ old _ go to work.8.The desk is so heavy that I cant move it.

25、 The desk is _ _ for me _move.He is not old enough to do the work. He is _ _ _ do the work.10.The problem is too difficult for me to work out. The problem isnt _ _ _ _ to work out.11. The book is interesting enough for everybody to read. The book is _ _ _ everybody likes to read it.12. The boy is so

26、 short that he cant reach the buttons of the lift. The boy is _ _ _ _ the buttons of the lift. The boy isnt _ _ _ _ the buttons of the lift.13.The water was so dirty that we couldn't drink it The water was _ dirty for us _ drink14.The child is so young that he can't put on his clothes The ch

27、ild isn't _ _ _ put on his clothes 15.The problem is too difficult for me to work out The problem isn't _ _ _ for me to work out He is so young that he can't go to school He is _ young _ go to school 17.The box is so heavy that he can't lift it The box is _ heavy _ _ _ lift Tom is so

28、 old that he can go to school Tom is _ _ to go to school 19. The box is so light that the child can lift itThe box is _ _ _ the child to liftsothat 、suchthat、so that的用法練習(xí)題一用so,such填空he was_excited that he couldn't get sleepthis teacher is_kind that we all like himhe ran_quickly that we all could

29、n't catch up with himthis is_interesting a book that we all ebjoy reading itthey are_intereting books that we all enjoy reading themhe has_many books that I can't count themthis is_ an interesting book that we all enjoy reading itthere was _much food that we couldn't eat it allI have_lit

30、tle money that I cannot afford a carhe is _a good student that we alll like him.he is _good a student that we alll like him.it was _bad weather that he had to stay at home.I've had _many falls than i'm blick and blue all over二填空The little boy saved every coin_ _he could buy his mother a pres

31、ent on Mother's day .當(dāng)球迷們看到貝克漢姆的時(shí)候，他們?nèi)绱思?dòng)以致于大喊大叫。(根據(jù)中文意思完成句子，每空一詞。)(2003北京市海淀區(qū))When the football fans saw Beckham, they got_excited_they cried out. David was so careless that he didn't find the mistakes in his test paper. (變?yōu)楹?jiǎn)單句)(2003福州市)David was_careless_find the mistakes in his test paper

32、.A：The boy is so young that he can't look after himself.B：The boy is not_to look after himself.(改寫句子，使B句與A句意思相近) . The stone is so heavy that I can't lift it up.It is_a heavy stone_I can't lift it up.(改寫句子)The book is_ interesting_I want to read it againIt was_a fine day_we couldn't

33、wait to go out for a walkJim is _clever_he can work out this difficult problem easilyMy cousin ran_fast _I couldn't catch up with himHe left in_a hurry_he forgot to close the windowThey are_lovely students_the teacher like them very muchMr Zhang is_good a teacher_all the students like himBob has

34、_few friends_he often feels lonely三單項(xiàng)填空。She bought a digital camera online she would save a lot of time. (2003揚(yáng)州市)A.so that B.as soon as C.no matter D.such that ._fine day it is today! Yes,the sunshine is_beautiful that I'd like to go swimming in the sea. (2003青島市) A. How, such B. What a, very C

35、. How, so D. What a, so The camera is _expensive_ I can't afford it. (2004年遼寧省)A. so, that B. such, that C. so, as to D. enough, that . Miss Gao asked a question, but it was_that nobody could answer it.A.very difficult B. too difficult C. difficult enough D. so difficult To my surprise,he could

36、get over _ difficult problems that he succeeded at last.A.so B.such一用so,such填空sososososuchsosuchsososuchsosuchso二填空so thatso，thattoo , toold enoughsuch, thatso.that.such.that.so.that.so.that.such.that.such.that.so.that.8.so.that. 三單項(xiàng)填空。AD DABso.that. 如此以致于.so that. 以便于，為了“so.that.”句型的意思是“如此/這么以致于”，常

37、引導(dǎo)結(jié)果狀語從句，但“so.that.”是個(gè)愛“變臉”句型，你一不留意就會(huì)出錯(cuò)?！皊o.that.”句型及其轉(zhuǎn)換也是中考的熱點(diǎn)，現(xiàn)將其用法總結(jié)歸納如下，讓我們一起來看看它是怎樣變的吧。 一、 so. that.句型中的so是副詞，常常用來修飾形容詞或副詞，常用句型為：主語+謂語+so+adj. / adv. + that從句。例如： 1. he is so young that she can't look after herself. 2. The boy ran so fast that I couldn't catch him. 3. He was so angry th

38、at he couldn't say a word. 二、 在“such. that.”句型中，such修飾名詞，意思也是“如此以致于”但當(dāng)名詞前有many、much、(a) few、(a) little等詞修飾時(shí)，句子中要用“so.that.”而不能用“such.that.”。例如： 1. He has so much money that he can buy what he wanted. 2. I've had so many falls that I have pains here and there. 3. There is little water in the

39、glass that I can't drink any more. 三、 so與that也可連起來寫，即變成：. so that .(以便 / 為了)，引導(dǎo)目的狀語從句。例如： 1. I got up early so that I could catch the early bus. 2. Please open the window so that we can breathe fresh air. 3. You must go now so that you won't be late. 四、以“so.that”引導(dǎo)的結(jié)果狀語從句可以轉(zhuǎn)換成不定式的簡(jiǎn)單句，即可轉(zhuǎn)換為“.

40、enough to.”或“.too.to”句型，但這種轉(zhuǎn)換必須符合下列條件： 1. 當(dāng)主句和從句的主語一致，且that從句是肯定句時(shí)，可用“enough to do sth.”來轉(zhuǎn)換。如： The man is so strong that he can lift the heavy box. The man is strong enough to lift the heavy box. He was so clever that he can understand what I siad. He was clever enough to understand what I siad. 2.

41、當(dāng)主句和從句的主語不一致，且that從句是肯定句時(shí)，可以用“enough for sb. to do sth.”來替換，但須注意不定式的賓語要省略。例如： The question is so easy that I can work it out. The question is easy enough for me to work out. The box is so light that he can carry it. The box is light enough for him to carry. 3. 當(dāng)主句和從句的主語一致，且that從句是否定句時(shí)，可以用“too.to”來替換

42、。例如： The girl is so young that she can't dress herself. The girl is too young to dress herself. I was so tired that I couldn't go on with the work. I was too tired to go on with the work. 4. 當(dāng)主句和從句的主語不一致，且that從句是否定時(shí)，如果要用“too.to.”替換“so.that.”，則用介詞for引出動(dòng)詞不定式的邏輯主語，可以用“too.for sb. to do sth.”來替換

43、，注意不定式的賓語要省略。 The bag is so heavy that she can't move it. The bag is too heavy for her to move. It is so hot that we can't sleep. It is too hot for us to sleep. tooto ,enoughto 及sothat的句型轉(zhuǎn)換tooto太以致于enoughto足夠 sothat如此以致于sothatso后面既可以跟形容詞也可以跟副詞，that后跟結(jié)果狀語從句，常與情態(tài)動(dòng)詞can連用。例如：The boy is so strong

44、 that he can carry the heavy suitcase . The weather is so sunny that we can go hiking . The bus is running so fast that everyone will fly . My mother is so beautiful that we all like her .enoughto :enough既可以修飾名詞也可以修飾形容詞和副詞，但是修飾名詞時(shí)既可以放在名詞之前也可以放在名詞之后，而修飾形容詞和副詞必須放在他們之后。例如：The tree is short enough for u

45、s to climb . I have enough time to finish our work . The pretty girl does her homework carefully enough to get her teachers praise .如果主語是物的，可以在to之前加for somebody 。tooto to是表否定，與enough to 相同的是如果物體作主語，在to的前面加for somebody 。例如：The children are too smart to scold so much . We are too small to reach the ap

46、ples . The speaker said too fast for them to hear clearly .練習(xí)題：They are so happy that they forget the time .（用tooto和enough to互換）We are old enough to dress ourselves . （用tooto和 so that 互換 ）The problem is so difficult that nobody can work it out（用tooto和enough to互換）These oranges are so delicious that t

47、he visitors cant wait .（用tooto和enough to互換）The sweater is too small for my sister to wear .（用enough to和so that互換）Too to專練：一、變換下列句型：1、The boy is so young that he can't look after himself.The boy is _ young _ _ after himself.2. a. The box is so heavy that I can't carry it. b. The box is _ heavy_ _ _ carry. c. The box is not _ _ for me to carry.3. a. The maths problem