1、第三课时 Section A(Grammar Focus4c)used to do sth.的用法一、定义used to do sth.表示“过去常常做某事”，将过去和现在进行对比，暗示现在不这样做了。to为动词不定式符号，后接动词原形。eg：He used to go to school at six oclock.他过去常常六点钟去上学。二、结构1.used to do sth.的否定形式：主语usednt to do sth.主语didnt use to do sth.eg：He used to play computer games all day.他过去常常整天玩电脑游戏。He us
2、ednt to play computer games all day.He didnt use to play computer games all day.他过去不常整天玩电脑游戏。【注意】usedntused not2.used to do的一般疑问句形式及其答语：Used主语to do.？回答：Yes，sb.used to./No，sb.usednt to.eg：Used Tom to watch TV？汤姆过去常常看电视吗？Yes，he used to./No，he usednt to.是的，他看。/不，他不看。Did主语use to do.？回答：Yes，sb.did./No，sb
3、.didnt.eg：Did you use to do homework after school？你过去常常放学后做家庭作业吗？Yes，I did./No，I didnt.是的，我做。/不，我不做。3.used to do的反义疑问句形式也有两种，类似于否定句形式。eg：They used to see English movies on Sundays，usednt/didnt they？他们过去常常在周日看英文电影，不是吗？Yes，they used to./No，they usednt to.或Yes，they did./No，they didnt.是的，他们是。/不，他们不是。4.u
4、sed to也可用于there be结构，表示“过去常有”。eg：There used to be a meeting every Monday morning last month.上个月每个星期一上午总要开会。三、used to do sth.，be used to doing sth.，be used to sth.和be used to do/for doing sth.的辨析1.used to do sth.意为“过去常常做某事”。指过去的习惯性动作或状态，与现在形成对比。eg：I used to water flowers in the morning.我过去常常早上浇花。2.be
5、 used to doing sth.意为“习惯于做某事”。指习惯性的状态或动作。eg：I am used to staying here.我已经习惯了待在这里。3.be used to sth.意为“习惯了某物”。eg：Lily is used to rice now.莉莉现在习惯吃米饭了。4.be used to do/for doing sth.意为“被用来做某事”。eg：It is used to sweep/for sweeping the floor.它是用来扫地的。一、单项选择。()1._ you _ to play the guitar？Yes.But now I play t
6、he piano.AAre；usedBDid；usedCWere；usedDDid；use()2.There _ many kinds of birds around here，but now I seldomsee them because of the cold weather.Ause toBuse to haveCused to beDused to haveDC语法精练()3.She hardly used to ride her bike to school，did she？_.She always took the bus.AYes，she didBYes，she didntCN
7、o，she didDNo，she didnt()4.Oscar _ in this room when he was a student，but it _old things now.Ais used to study；used to keepBused to study；is used for keepingCused to study；used to keepDis used to studying；is used to keepDB()5.I _ in the past，but now I have to get used to _ for my health.Aoften stay u
8、p；going to bed earlyBused to stay up；go to bed earlyCoften stayed up；go to bed earlyDused to stay up；going to bed earlyD二、按要求完成下列句子。6.Did you use to play soccer after school？(作肯定回答)_，_ _7.I used to be afraid of snakes.(改为否定句)I _ _ _ _ _ be afraid of snakes.8.He used to be really friendly.(改为一般疑问句)_
9、he _ to be really friendly？YesI diddidnt useto/used not toDiduse9.I used to go to school by bus(对画线部分提问)_ _ you _ _ go to school？10.They used to play basketball on the playground.(补全反义疑问句)They used to play basketball on the playground，_ _？How diduse todidnt/usednt they三、根据句意及汉语提示写单词。11.There is a _(
10、欧洲的)girl in our class.She is very friendly.12.We can see two _(非洲的)lions in the zoo.13.The man made many funny mistakes in his _(发言).14.The waste from the factories is bad for _(公众的)health.15.Although American people and _(英国的)people speak the same language，their cultures are quite different.Europea
11、nAfricanspeech课时精练publicBritish四、根据汉语意思完成下列句子。16.我们的校长下周一将就学生的安全问题进行发言。Our headmaster will _ _ _ about students safety next Monday.17.琳达很害羞，她不敢在公众面前讲话。Linda is very shy.She is afraid to speak _ _.18.我弟弟一周至少打三次篮球。My younger brother plays basketball _ _ three times a week.19.苏珊过去留长发，但是现在留短发。Susan _ _ _ long hair，but now she has short hair.give aspeechin publicat leastused to have
