1、too.to. 與 enough.to. 與 so.that.的區別too+adj./adv. to+v太而不能做某事例： He is too young to go to school. 他年紀太小還不能上學。2.adj./adv.+enough to +vJ£ 夠.而能做某事例：He is old enough to go to school.他足夠大了能上學了 /他已到了上學的年齡了。3.so +adj./adv.+that從句 如止匕以致例： 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換，具體如下：too.t

2、o. =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 to Step 1看圖說話 利用課本P36頁的圖畫和提示詞練說 too to do和notenough to do句子。如： 1. The snake / dangerous/ hold . / The boy not braveThe snake

3、 is too dangerous to hold. The boy is not brave enough to hold it .板書too to do和notenough to do并讓學生明確這兩個短語的中文意思是太 而不能”。提醒學生觀察這兩個句子結構中的形容詞用什么形式，to do中的do可否變換形式。在準確理解的基礎上繼續看圖說話。2. The girl / short / get on the elephant. / she / not / tall .3. The elephant / heavy / carry. / The boy / not strong.4. The

4、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. ()The snake is so

5、 dangerous that the boy hold it.學生在理解的基礎上探求答案，在探求答案的過程中獲得新知。板書 so that + 含有 can' t / couldnU俅d定句等同于 too - to 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 tall_ that the gi

6、rl can' t get on it . The elephant enough the girl get on. The elephant tall the girl get on.完成句子后求異：與原句比較后發現：由tooto do 結構轉換為notenough to do吉構時，要找到句中形容詞的反義詞。與比較后發現：sothat +含有can' t / couldn'白錦8定句結構的句子，若主從句的主語不一致時，改寫為 tooto do或notenough to do 結構時，要在不定式to do前添for sb ,若主從句的主語一致，則不須添 for sb。

7、如：He is so young that he can ' t go to?SChoO（句）He too young to go to school .He not old enough to go to school.觀察、 兩句可得：在tooto do 或notenough to do的句子中，若to do的賓語與句子的主語相一致時， 須省略 it 。 發散思維： 若把句子改為過去時， 應該怎么辦？1. The girl was too short to get on the elephant.改為同義句）The elephant was so tall_ that the gi

8、rl couldn t get on it .2. He ran very fast. He couldn t stop.He ran too fast to stop.He ran so fast thathe couldn ' t stop.法是句型轉換時要注意時態一致。）Step 3 鏈接中考The panda is so fat that it can' t go throughthe hole思的句子）The hole such a fat panda to go through.The ice on the lake was so thin that people

9、couldn. （改寫為同一意思的句子 t skate on it ）The ice on the lake was not enough people .Mr. King is very busy at work. He can' t takeaWojday.（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 Step 4 鞏固練習My brother was so clever that he

10、 could work out the problem. 改為同義句（）My brother work out the problem.The box isn t lighotuegnh for him to carry. （改為同義句）The box for him carry.He is very short . He can ' t reach the book ontheshefj（）He is reach the book on the shelf.The water was so dirty. We can'（改 drink斑句）The water was too

11、.The water in this river is very dirty. Fishes can t 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't carry it.b. The box is heavycarry.c. The box is not for

12、 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 enough for everybody to read.b. The book is interestingeverybody likes to read it.Practice

13、Two:He is old enough to go to school.He is that go to school.2. She was so weak that she couldn t take care of her baby.She was weak take care of her baby.Practice Three:1 She is so young that she can t go to school.=She is go to school.2 The box is so heavy that he can t carry it.=The box isto carr

14、y3 Xiao Lin is so old that he can go to school.=Xiao Lin is go to school.4 The box is so light that he can carry it.=The box is for him to carry.5 The man is so old that he can t go to work.=The man to go to work.6 The desk is so heavy that I can t move it.=The desk for me to move.7 He is not old en

15、ough to do the work.=He is to do the work.8 The problem is too difficult for me to work out.= The problem for me to work out.Practice Four:1. The book is interesting enough for everybody to read.The book is interesting everybody likes to read it.2. The boy is so short that he can he bu ttot nresaocf

16、hthte lift.The boy is short the buttons of the lift.The boy isn t the buttons of the lift.Too.to so - that enough to練習He is too young to go to school. 他太年幼了以至于不能上學。= He isn't old enough to go to school. 他的年紀還沒有大到足以上學。=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。1. He is old en

17、ough to go to school.He is that go to school.2. She was so weak that she couldn t take care of her baby.She was weak take care of her baby.一、sothat與too心的轉換當that引導的從句為否定式且從句主語與主句的主語相同時，sothat可轉換為too - to 結構；若從句主語與主句的主語不相同時，sorhat可轉換為too - for sb to結構。例如：She is so young that she can ' t go to=sChe

18、(osi too young to go to school.The box is so heavy that he can ' t=cTihry bo x is too heavy for him to carry.二、sothat 與 enough to的轉換1 .當that引導的從句為肯定式時，若從句主語與主句主語相同時，sothat可轉換為enough to結構；若從句主語與主句主語不相同時，sothat可轉換為enough for sb to結構。 例如：Xiao Lin is so old that he can go to school. = Xiao Lin is ol

19、d 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that引導的從句為否定式時，若從句主語與主句主語相同時，sothat可轉換為enough to的否定結構；若從句主語與主句主語不相同時，sothat可轉換為enough for sb to 的否定結構。同時要注意，轉換后的形容詞（副詞）要用其相應的反義詞。例如：The man is so old that he cant go 4olWerkian isnt young

20、 enough to go to work.The desk is so heavy that I cant mTohveediet.sk isnt light enough for me to move.8三、enough to的句式為否定式時，enough to可以轉換為tooro結構。但轉換后的too to結構中的形容詞（副詞）要用其相應的反義詞。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.

21、= The problem isn ' t easy enough for me t( work out.改寫同義句，每空一詞。1. The book is interesting enough for everybody to read.The book is interesting everybody likes to read it.2. The boy is so short that he can t reach the buttons of the lift.The boy is short the buttons of the lift.The boy isn _t th

22、e buttons of the lift./I年級 so.that; .enough.;too.t比項練習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.2 .She is so young that she can t go to school.She is go to school.4 .The box is so heavy tha

23、t he can t carry it.The box is for himcarry.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 can t go to work.The man old go to work.8 .The desk is so heavy that I can t move it.The

24、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 isn t 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 short that he can t reaocf h

25、thtehelifbt.uttonsThe boy is the buttons of the lift.The boy isn t the buttons of the lift.13 .The water was so dirty that we couldn't drink itThe water was dirty for us drink14 .The child is so young that he can't put on his clothe sThe child isn't put on his clothe s15 .The problem is

26、too difficult for me to work out The problem isn't for me to work outHe is so young that he can't go to schoo lHe is young go to schoo l17 .The box is so heavy that he can't lift itThe box is heavy liftTom is so old that he can go to schoo lTom is to go to schoo l19 . The box is so light

27、 that the child can lift itThe box is the child to liftsothat、suchthat so that的用法練習題一.用so,such填空he wasexcited that he couldn't get sleepthis teacher iskind that we all like himhe ranquickly that we all couldn't catch up with himthis isinteresting a book that we all ebjoy reading itthey arein

28、tereting books that we all enjoy reading themhe hasmany books that I can't count themthis isan interesting book that we all enjoy reading itthere was much food that we couldn't eat it allI have_little money that I cannot afford a car he is a good student that we alll like him.he is good a st

29、udent 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 coinhecould buy his mother a present onMother's day .當球迷們看到貝克漢姆的時候，他們如此激動以致于大喊大叫。 （根據中文意思完成句子，每空一詞。 ）（2003 北京市海淀區 ） When the footba

30、ll fans saw Beckham, they gotexcitedthey cried out.David was so careless that he didn't find the mistakes in his test paper.變為簡單句）（2003 福 州市 ）David wascarelessfind the mistakes in his test paper.A ： The boy is so young that he can't look after himself.B ： The boy is notto look after himself.

31、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 isinterestingI want to read it againIt wasa fine daywe couldn't wait to go out for a walkJim is cleverhe can work out this difficult problem easilyMy cousin ranfast I coul

32、dn't catch up with himHe left ina hurryhe forgot to close the windowThey arelovely studentsthe teacher like them very muchMr Zhang isgood a teacherall the students like himBob hasfew friendshe often feels lonely三單項填空。She bought a digital camera online she would save a lot of time. （200揚州市3）A.so

33、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. How, so D. What a, soThe camera is expensive_ I can't afford it. （2004年遼寧省）A. so, that B. such, that C. so, as to

34、D. enough, that. Miss Gao asked a question, but it wasthat nobody could answer it.A.very difficult B. too difficult C. difficult enough D. so difficultTo my surprise,he could get over difficult problems that he succeeded at last.A.soB.such.用 so,such填空 8.so.that三單項填空。soAsoDsoDsuchAsoB suchsososuchsos

35、uchso二填空so thatso， thattoo , toold enoughsuch, thatso.that. such.that.so.that.so.that. .such.that. .such.that. .so.that.50.1. that 如止匕以致于.so that.以便于，為了“so.that.句型時意 思是 如此/這么以致于”，常引導結果狀語從句，但“ so.that.是個愛.”“變臉 ”句型，你一不留意就會出錯。“ so.that.句型及其轉換也是中考.”的熱點，現將其用法總結歸納如下，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

36、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 that 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”但當名詞前有 many、 much、 (a) few 、 (a) little 等詞修飾時，句子中要

37、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 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)，引導目的狀語從句。例如：1. I got up early so that I

38、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.thatl導'的結果狀語從句可以轉換成不定式的簡單句，即可轉換為".enoughto.或” .too.t畫型，但這種轉換必須符合下歹！J條件：1 .當主句和從句的主語一致，且that從句是肯定句時，可用“enough to do st俅車換。如：The man is so strong that h

39、e can lift the heavy box.7The man is strong enough to lift the heavy box.He was so clever that he can understand what I siad.7He was clever enough to understand what I siad.2 .當主句和從句的主語不一致，且that從句是肯定句時，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.

40、7The question is easy enough for me to work out.The box is so light that he can carry it.7The box is light enough for him to carry.3 .當主句和從句的主語一致，且that從句是否定句時，可以用“too.t沫替換。例如：The girl is so young that she can't dress herself.7The girl is too young to dress herself.I was so tired that I couldn

41、9;t go on with the work.7I was too tired to go on with the work.4 . 當主句和從句的主語不一致，且 that 從句是否定時，如果要用“too.to.替換”“so.that.,則用介tfor引出動詞不定式的邏輯主語，可以用 “toofor sb. to do st俅替 換，注意不定式的賓語要省略。The bag is so heavy that she can't move it.7The bag is too heavy for her to move.It is so hot that we can't sle

42、ep.7It is too hot for us to sleep. too to ,enough to sothat 的句型轉換 too - to 太 以致于 enough t捉夠 sothat如此 以致于 so that - so面既可以跟形容詞也可以跟副詞，that后跟結果狀語從句，常與情態動詞 can 連用。例如： The boy is so strong that he can carry the heavy suitcase .The weather is so sunny that we can go hiking .The bus is running so fast that

43、 everyone will fly .My mother is so beautiful that we all like her .enough to: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 us to climb .I have enough time to finish our work .The pretty girl does her homework carefully enough to get her teach

44、er s如果主語是物的，可以在 to 之前加 for somebody 。too心to!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 apples .The speaker said too fast for them to hear clearly . 練習題：They are so happy that they forget the time .（用 too to 本口 enough

45、to 互換）We are old enough to dress ourselves .（用 too to 和 sothat 互換）The problem is so difficult that nobody can work it out （用 too to 禾口 enoughto 互換）These oranges are so delicious that the visitors can （用 too to'和 wno ugh to 互換）The sweater is too small for my sister to wear.（用 enough- - to 和 sothat 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