unit 4
语法篇。used to do sth.用法小结。
to do sth.表示“过去常常做某事”,只表示过去和现在对比,暗示现在不做了。to为动词不定式符号,后接动词原形。
eg:he used to go to school at six o’clock.
2. used to do sth.的否定形式: usedn’t to do sth.
主语+ used not to do sth. /didn’t use to do sth.
eg; he used to watch tv all day. →he usedn’t to watch tv all day. =he didn’t used to watch tv all day.
注意:usedn’t= used not
3. used to do的疑问形式及其答语:
1)used+主语+to do...
回答:yes,sb. used to./no,sb. usedn’t to.
eg:tom used to read books.一used tom to read books?
yes,he used to./no,he usedn’t to.
2) did十主语+use to do...
回答:yes,sb. did./no,sb. didn’t
eg:i used to do homework after school.
→did you use to do homework after school? yes,i did. /no,i didn’t.
to do的反意疑问句形式也有两种,类似于否定句形式。
eg:-they used to go to the concert on sunday,usedn’t/didn’t they?
一yes,they used to./no,they usedn’t to.
一yes,they did./no,they didn’t.)
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.
6.拓展:sb. get/be used to ( doing) sth.
use sth. to do sth.
used to do sth.
be used for(doing) sth.
be used by sb.
反意疑问句:
陈述部分的主语为 this, that, 疑问部分主语用it; 陈述部分主语用 these, those, 疑问部分用they 做主语。
例: this is a new story, isn’t it? those are your parents, aren’t they?
陈述部分是 there be 结构, 疑问部分仍用 there
例: there was a man named paul, wasn’t there?
i am 后的疑问句, 用aren’t i ? 例: i am in class 2, aren’t i?
陈述部分与含有 not, no, never, few, little, hardly, seldom, neither, none 等词时,疑问部分用肯定。例: few people liked this movie, did they?
但陈述句中若带有否定前缀或后缀的单词时, 这个句子仍视为肯定, 后面仍用否定。
例: your sister is unhappy, isn’t she?
陈述部分的主语若为不定式或 v-ing 短语, 疑问部分主语用it.
例: to spend so much money on clothes is unnecessary, isn’t it?
陈述句中主语是 nobody, no one, everyone, everybody 等指人的不定代词时,疑问部分用they做主语; 若陈述部分主语是 something, anything, noting, everything 等指事物的不定代词时, 疑问部分用it 做主语。
例: nobody says one word about the accident, do they?
everything seems perfect, doesn’t it?
当主语是第一人称i时, 若谓动为think, believe, guess 等词时, 且其后跟宾丛,这时疑问句部分的人称, 时态要与宾语从句保持一致, 同时还要考虑否定转移。
例: i don’t think he can finish the work in time, can he?
前面是祈使句, 后用 will you? (let’s 开头时, 后用shall we?)
1 therea restaurant here.
a. used tob. used to be c. used to h**e d. is used to be
2 he showed __in english last year. and he is __in english.
a. interest, much interested b. interest, more interested c.
interesting, much interest d. interesting, more interested
3. i often sleep __windows __all year round.
a. with, close b. with, open c. h**ing, close d. le**ing, opened
'thea)用括号所给代词的正确形式填空。
1.two students of___came to see __last sunday.(
2.“is this your brother's cap?” yes, it's___he)
3.the teacher will help __with __english.(she)
4.i love my garden. they love___they)
5.tom doesn' t like to go there __he)he wants to go there with some friends.
b)选择方框中的代词填空。
6.she bought two jackets. one is for her father, _is for her mother.
7.my parents and i __enjoy watching basketball matches.
8.all the people left the room after the meeting. there is __in the room now.
9.__has taken my bag away. i can't find __
10.if you need a ruler, i'll lend you___
11.“this sweater is too big.” can you show me___one?”
12.“what does the word “well” here meanmeans “in good health”
c)完成句子。
改为一般疑问句philip___toplaysoccerverywell?
改为反意疑问句) missliuusedtobeeasygoing
(改为同义句) aliceinplayingtheviolin.
改为否定句) itobeoutgoing.
17. mariausedtohelpmomdohousework.(对画线部分提问) what___maria___todo?
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