Unit 20 Playing games

【重点、难点点拨】

 1. 学习祈使句。
 祈使句是用来表示请求,命令,提出建议,邀请别人做某事或不做某事的句子。祈使句通常省略主语you。动词用原形。有时可加please表示客气的请求。

例如:
 Come in, please 请进来。
 Do it like this. 像这样做(这件事)。
 否定形式是Don't + 动词原形。

例如:
 Don't worry. 别着急。
 Don't throw it like that. 别那样扔。
 另外,祈使句还有let's + 动词原形,或let + 某人 + 动词原型,表示请求对方同自己一起做某事,或请求对方的许可让某人做某事。

例如:
 Let's go to school.   让我们上学去吧。
 Let's go and play games. 我们去做游戏吧。
 Let me help you. 让我帮助你吧。
 Let me carry the box for you. 我来帮你搬这只箱子吧。

 2.学习there be句型。
 There is / are + 某物/某人+某地,大致相当于汉语“某地有某物”。这里的“有”表示“存在”的意思。动词be(is / are)要与后面所跟名词(即主语)在“数”上保持一致。

例如:
 There is a river in the picture. 图画中有一条河。
 There are some trees near the river. 河的附近有一些树。
 Is there any water in the bottle? 瓶子里有水吗?
 There aren't any pencils in the pencil-box. 铅笔盒里没有铅笔。

3.学习情态动词can。
 can是情态动词,有一定的词义。(本单元表示询问“能力”)和另一动词一起构成谓语。在各种人称后都用同样的形式。can 后面须跟动词原形。否定式在 can 后面加not。(cannot=can't) 

例如:
  I can swim.       我会游泳。
  She can't play football.    她不会踢足球。
  Can you carry this heavy box?  你能搬动这只箱子吗?

【重点、难点例题解析】

改错。下列句中,四处中有一处是错的,请找出。
  1. Arethere two boatsin the river? Yes, theyare.
  2. Thereisabig bird onthe tree.
  3. There area glassand four bottlesof orangeon the table.
  4. Notplayfootballinthe street(街道).

解析:
  第一句D是错的。there be句型的简略回答不用代词加be 动词。要用there加be。
  第二句D是错的。短语on the tree是指树本身所长或具有的。例如:
 The apples on that tree are still green. 那棵树上的苹果还是绿的。而in the tree
是指不是树本身所长的。
 第三句A是错的。当there be句型后面跟有两个或两个以上名词时,动词be 通常与最靠近
它的名词在“数”上保持一致。本题应把there are改为there is.
  第四句A是错的。祈使句的否定形式是在动词原形前面加Don't。
  Don't = Do not.而且祈使句的否定形式要用其缩略形式。再如:
 Don't worry. 不要担心。

【重点、难点练习题】
 1. 用括号内所给词的适当形式填空。
  (1)_____(not throw) it like that. _____(throw) it like this.
  (2)Let me _____(put) these bottles away.
  (3)There _____(be) some milk in the glass.
  (4)I want _____(take) these books to the library(图书馆).
  (5)She can _____(fly) a kite very well.
  (6)It's time for us _____(play) basket ball. 
 2.按要求完成下列各句。
  (1)Swim in the river.(改为否定句)
  _____ _____ in the river. 
  (2)There is a cat under the table.(改为复数句)
  There _____ _____ _____ under the table. 
  (3)There are ten books on the desk.(根据划线部分提问)
  _____ _____ books _____ _____ on the desk? 
  (4) Can you make a cake.(作否定回答)
  _____, _____ _____. 
  (5)There are some boats in the river.(改为一般疑问句)
  _____ _____ _____ boats in the river? 

【全方位单元综合练习题】

Ⅰ. 从下列各组单词中,找出划线部分读音与其他三个不同的词。
  1. A. jump    B. cup    C. must  D.duty
  2. A. ride    B. swim    C. sing  D.frisby
  3. A. make    B. same   C. any  D.cake
  4. A. easy    B. tea    C. meat  D.great
  5. A. window   B. throw   C. brown  D. row
  6. A. car    B. class? C. hard  D. catch
  7. A. go     B. do  ?  C. whose  D. shoe
  8. A. some    B. worry   C. mother  D. sorry
  9. A. give    B. rice   . kite  D. mine
  10. A. there   B. where   C. here  D. chair

Ⅱ.词组互译。

  1.骑自行车 _____     2. 打篮球 _____
  3.制做蛋糕 _____     4. 放风筝 _____
  5. 踢足球 _____      6. near the house _____
  7. want a go _____    8. in the picture _____
  9. run with it _____    10. in the sky _____ 

Ⅲ.选择填空。
 1. There _____ a big table in the room.
  A. am B. is C. are D. has 
 2. I can't swim. It's too _____.
  A. easy B. hard C. near D. high 
 3. There _____ some oranges in the basket.
  A. is B. are C. am D. have 
 4. There are some trees _____ the river.
  A. on B. under C. over D. near 
 5. I can't see _____.
  A. any B. some C. only D. something 
 6. Look! The kite is _____ in the sky.
  A. easy B. hard C. high D. over 
 7. Run _____ the kite like this.
  A. with B. on C. in D. for  
 8. _____ something to drink?
  A. Are you like B. Do you likeC. Can you like D. Would you like 
 9. Can you make a cake?
  _____. It's easy.
  A. No, I can't B. Yes, I amC. No, I'm not D. Yes, I can 
 10. Hello Wei Hua. Can you _____ the frisby?
  A. fly B. play C. throw D. carry 
 11. There aren't any doors _____ the wall of this room.
  A. in B. on C. for D. with 
 12. There is _____ on the table.
  A. some oranges B. two glasses of orange
  C. an orange D. any orange 
 13. Let's go and play _____ basketball.
  A. a B. an C. the D. / 
 14. _____ there _____ meat on the plate?
  A. Is, any B. Is, someC. Are, any D. Are, some 
 15. I can't throw a frisby, but I want _____.
  A. go B. a go C. throw    D. a throw 

Ⅳ.介词填空。
 1. Don't throw it _____ that.
 2. What's wrong _____ your bike?
 3. There is a boat _____ the river.
 4. There are some trees _____ the river.
 5. Run _____ the kite _____ this.
 6. Look _____ the picture _____ the back wall _____ the room.
 7. She is climbing the hill _____ Mary.
 8. You must look _____ your things.
 9. Today Han Meimei is _____ a yellow sweater. 
 10. The balls are _____ the door. Can you see them? 

Ⅴ.根据中,英文提示,填入所缺单词,补全对话。
 1. 墙上有两张地图。
  _____ _____ two maps _____ the wall. 
 2. 图画中有树吗?
 _____ _____ _____ trees in the picture?  
 3. 我的父亲在上班。
 My father _____ _____ _____. 
 4. 你想试一试吗?
 Do you _____ _____ _____? 
 5. 你想喝点什么吗?
 _____ you _____ something _____ _____? 
 6.我想放风筝。
 I _____ _____ _____ a kite. 
 7.不要那样扔。
 _____ _____ it _____ that. 
 8.房间里有多少女人?
 How many _____ _____ _____ in the room? 

Ⅵ.改错。下列句中,四处中有一处是错的,请找出。
  1.I think it's an easy.
  2.Would you like something eat?
  3.What about drink a cup of tea?
  4.Can you play the football?
  5.Is there some milk in the bottle?
  6.It time to study English.
  7.Not eat too much.
  8.How many babys are there in the room?

Ⅶ.补全对话。每空一词。
  Lucy: Hello, Han Meimei! That  (1)  a nice bike.
  Meimei: Oh, hello, (2) . Yes, it's new.  (3) you want a go?
  Lucy: Yes, but I don't think I can ride it. I think it's too  (4) .
  Meimei: No. It's  (5) . Here, have a try(试试). Let me help  (6) . 
  Lucy: Like this?
  Meimei: Yes, that's right. Good! Now, go!
  Lucy: I am going! It's great. Oh…(She fell down)
  Meimei: Lucy, are you  (7)   (8) ?
  Lucy: Don't worry. I'm  (9) . But what (10)  the bike? Is it  (11) ?
  Meimei: No, don't worry. It's OK. It's  (12)  broken.

参考答案