初一语法专项练习。
一．频度副词（一般现在时态的标志）
always>usually>often>sometimes>seldom> never，once a week, twice a month, three times a year, everyday等等。
对频度的提问，应该用how often
）1.—how often does your sister surf the internetabout __
a. three time b. three times c. three time every day d. three times a day
）2. —he is going there __july 28th.
a. on b. at c. in d. to
）3. thank you for __me find my little cat yesterday.
a. help b. helps c. helped d. helping
） you good at
a. swim b. swimming c. to swim d. swam
）5. —could i use your computer
a. yes, i can. b. yes, you can’t c. sorry, you can’t d. no, i can’t.
）6does it take you to watch tv?
about forty minutes.
a. how long b. how much c. how often d. how many
）7. when it rains, ia taxi.
a. take b. ride c. by d. sit
）8are you staying in ottawa? —for two weeks.
a. how long b. how many c. how often d. how much
）9. does babara go to workbus orfoot?
a. to; by b. with; on c. by; on d. on; on
）10. my birthday is in___
a. tuesday b. april c. march 3rd d. monday
二．交通方式的表达：
by+交通工具或动词短语构成by bike, by bus, by car , by plane , by train , by subway，by land, by air, by sea, by water, on foot,ride a bike, take a bus, take a plane, take a train, take the subway, walk to）
问交通方式则应该用how, 如：
how does he go to school? how do you go to the park? how does she go to work?
1. my mother goes to work by bus.(同义句)
my mother goes to work
2. my grandma often goes home by subway. (就划线部分提问)
does your grandma oftenhome?
yang walks to work everyday . 改为同义句)
miss yang goes to workeveryday?
grandma usually takes the subway home. （就划线部分提问）
your grandma go home?
三、现在进行时：
1. 定义：表示（说话瞬间）正在进行或发生的动作。
经常与now, at the moment, look, listen等词连用。
2. 基本结构：be (am/ is/ are)＋v-ing （动词的现在分词） i’m watching tv now.
3. 现在分词的构成：
1）一般情况下在动词词尾加ing。
go→going ask →asking look→looking
2）以不发音的e结尾的动词，去掉e加ing。
h**e →h**ing take→taking make→****** write→writing
3）以一个辅音字母结尾的重读闭音节，双写最后一个字母，再加-ing。
get→gettingswim→swimming begin→beginning shop→shopping
4. 现在进行时态的肯定式、否定式、疑问式及简略回答。
1）肯定式：be＋v-ing she is singing in the next room.
2）否定式：be＋not＋v-ing the students aren’t cleaning the room.
3）一般问句：be动词提前。
肯定答语yes，主语＋be，否定答语no，主语＋be not。
5.特殊疑问问句：疑问词＋be ＋主语＋doing＋其他？(疑问词＋一般疑问句)
. 写出下列动词的ing形式。
1. clean___2. read3. play___4. h**e___5. get___
6. eat___7. take___8. make___9.
.句型转换。
1. amy is playing computer games. (一般疑问句，肯定回答)
are doing their homework.（一般疑问句否定句）
3. the students are cleaning the classroom . 一般疑问句，否定回答)
4. i’m playing football on the playground .(画线提问)
5. tom is reading books in his study . 画线提问)
四．现在进行时与一般现在时的区别：
一）一般现在时。
定义：表示经常性的动作。 经常与频率副词（时间状语）连用：
often经常， usually通常， always总是， every每个， sometimes有时， at…在几点钟等。 只有第三人称单数用动词三单形式，其余动词均用原形 。
二）现在进行时。
1. 定义：表示（说话瞬间）正在进行或发生的动作，。经常与now, at the moment, look, listen等词连用。
1.现在进行时表示动作的暂时性，而一般现在时表示动作的习惯性和经常性。
i am watching tv now. （暂时性）
i watch tv every day. （经常性）
2.现在进行时可表示短暂性动作，而一般现在时表示长久性动作。
lucy is living in beijing.（短时间居住）
lucy lives in beijing. （长久性居住）
．用动词的适当形式填空。
1. we often___play) in the playground.
2. he __get) up at six o’clock.
3. -who___sing)a songli ying is.
5. danny __study) english, chinese, math, science and art at school.
6. mike sometimesgo) to the park with his sister.
7mike___read) english every day?
8. look,the boyrun)fast.
9. -what are you doingido) my homework.
10. look！ the boy over there___play) a model plane.
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