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1、动词ing形式的用法及变化规则二动词现在分词由动词原形在词尾加ing构成，其规则如下：1）一般情况下直接加ingthink-thinkingsleep-sleepingstudy-studyingspeak-speakingcarry-carryingsay-saying2）以不发音的字母e结尾的单词，去掉字母e，再加ingwake-wakingmake-makingcome-comingtake-takingleave-leavinghave-having3）以重读闭音节结尾，呈现“辅，元，辅”结构的动词，先双写末尾的辅音字母，再加ing初中学过的这类词有：begin，cut, get, h
2、it, run, set, sit, spit, stop, swim, beg, drop, fit, nod, dig, forget, regret, rid,等。visit不是以重读闭音节结尾，不用双写travel虽然重读第一音节，词尾音节不重读，但是现在分词仍要双写末尾辅音字母，然后再加ing，如：travel-travelling.初中阶段此类词只有这一个。4）以y结尾的动词直接加ingcarrycarryingenjoyenjoying5）以ie结尾的动词，把ie改为y，再加ingdie-dyinglie-lying动词第三人称单数的变化规则及练习一、 变化规则1、直接在动词后+
3、s 例如： like- likes play-plays 2、以s, x, sh, ch, 接尾的动词：+es 例如： wash-washes3、以辅音+o接尾的动词：+es 例如： go-goes4、以辅音+y接尾的动词：变y为i+es 例如： fly-flies英语名词单数变复数的规则一、绝大多数的可数名词的复数形式，是在该词末尾加上后辍-s。读音变化：结尾是清辅音读s，结尾是浊辅音或元音读z。例：friendfriends; catcats; stylestyles; sportsports; piecepieces二、凡是以s、z、x、ch、sh结尾的词，在该词末尾加上后辍-es构成复
4、数。读音变化：统一加读iz。例：busbuses; quizquizzes; foxfoxes; matchmatches; flashflashes三、以辅音字母+y结尾的名词，将y改变为i，再加-es。读音变化：加读z。例：candycandies; daisydaisies; fairyfairies; ladyladies; storystories四、以-o结尾的名词，如果不是外来词或缩写，就加-es，否则加-s构成复数。读音变化：加读z。例：tomatotomatoes; potatopotatoes; torpedotorpedoes; bingobingoes反例：silosi
5、los; pianopianos（外来词）; photophotos; macromacros五、以-f或-fe结尾的名词，多为将-f或-fe改变为-ves，但有例外。读音变化：尾音f改读vz。例：knifeknives; lifelives; leafleaves; staffstaves; scarfscarves反例：roofroofs十一、部分单词的复数形式不变。读音变化：保持原音。例：fishfish; sheepsheep; cattlecattle; deerdeer; salmonsalmon十二、极少数单词，其复数形式没有任何规律。读音变化：没有规律。例：manmen; wo
6、manwomen; childchildren; personpeople; oxoxen十五、有些名词是单数、复数不分的例：deer; fish; cannon; sheep; salmon 鲑鱼; trout 鳟鱼十九、若表达具体数目，要借助数量词例：pair(对，双); suit(套); a pair of glasses; two pairs of trousers练 习一.写出下列动词的现在分词形式work_visit_play_study_dance_have_take_drop_ lie_ sing_shop_swim_二选择题练习1. Who _ over there now?
7、A. singingB. are sing C. is singingD. sing2. Its eight oclock. The students _ an English class.A. haveB. havingC. is havingD. are having3. Listen! The baby _ in the next room.A. crying B. criedC. is cryingD. cries4. Look! The twins _ new sweaters.A. are wearingB. wearingC. are wearD. is wearing5. Do
8、nt talk here. Grandparents _.A. is sleepingB. are sleepingC. sleepingD. sleep三.填空：1. Miss Li _ (like) sleeping in the day.2. Listen! Who _ (talk) with your parents3. The girl _ ( not dance ) on Wednesday. She dances on Friday.5. Everyone _(say) she is a good shop assistant.8. Lets _ (eat) lunch toge
9、ther(一起).9. Look! A cat _ (run) up the tree.10. Its 6:30. My brother _ (see) a movie.11. Sam _ (go) to school at 7:00 every day.12. Peggy is _ (clean) the bedroom now. She is a good girl.13. - Where _ Mr. Green _ (live) - He _ inLondon.14. - _ you _ (clean) your bedroom - No, Im not. Im cleaning the
10、 living room.15. - _Nancy_ (talk) on the phone - No, she isnt. She _ (eat) lunch now.名词由单数变成复数的练习写出下列名词复数leaf_ puppy_ box_ knife_ fly_ fox_ bus_ bench_ brush_ kiss_ church_ dish_ ruler_ peach_ glass_ pencil_ boy_ zoo_ man_ roof_ sheep_ knife_ lady_ key_ story_ watch_ bamboo_ city_ family_ day_ apple
11、_ eraser_ speech_ thief_ mouse_ fish_ goose_ people _ ox_ Chinese _ deer _ foot_ child_ tooth_ guy_ hero_ spy_ boss_ monkey_ city _ goat _ radio _ horse _ dog _用所给的单词的复数的正确形式填空：1There are so many_ (wolf) in the forest.2There are three _ (chair) in the classroom.3These _ (tomato) are red. 4_ (hero) a
12、re great.5My brother looks after two _ (baby)6There are some _ (deer) eating the grass.7My father likes to eat _ (potato).8Chinese _ (people)like to eat noodles.9I have a lot of _ (toy) in my bedroom.10I help my mother wash _ (dish) in the kitchen.11I have two _ (pencil-box). 12There are some _ (bus)in the street.13Peter has eight _ (foot). 14Linda has three _ (tooth).15There are some _ (child) in the garden.16
