内容正文:
优型
学练优八年级英语下(RJ)
优超
第三课时(Grammar Focus~4c)
语法精讲
(一)动词不定式
基本形式是“+动词原形”,有时也可以不带0。没有人称和数的变化,在句子中不能作
形式
谓语。否定形式是在动词不定式前加not。如:Lily asked me not to use her computer.
作主语:一般位于句首,谓语动词用单数。为了避免句子“头重脚轻”,常用作形式主
语。而把真正的主语(动词不定式)放在句尾。如:It took me half an hour to walk there
作宾语:①及物动词后直接跟带to的不定式。如:I decide to spend the summer in Yunnan.
②“及物动词+疑问词+带to的不定式”结构。如:He told me how to learn English well,
动词不定式
用
作宾语补足语:常接不定式作宾语补足语的动词有tell,ask,want,teach,order,.advise
等。如:Mom asks me to sleep early.
作表语:放在系动词之后。如:His dream is to be a teacher..
作定语:放在被修饰词之后。如:Would you like something to eat?
作状语:常作目的状语。如:He raised his voice to be heard clearly.
在使役动词之后,如have,make,let等。
在感官动词之后,如feel,hear,see,watch,notice等。
省略to
的情况
help后的不定式可省略to,也可以带上to。
在其他固定搭配中,如had better do sth.,why not do sth.等。
(二)动词短语
动词+介词
相当于及物动词,可直接跟宾语。look after照顾;hear froml收到…的来信
相当于及物动词,代词作宾语时,放在动词和副词之间。hand out分发;give away赠送
动词+
副词
相当于不及物动词。grow up长大;get upi起床
动词短语
动词+副词+介词
相当于及物动词,宾语位于介词之后。look forward to期盼;come up with想出
动词+名词+介词
相当于及物动词,宾语位于介词之后。take part in参与;make fun of取笑
相当于及物动词,宾语位于介词之后。be interested in对…感兴趣
be+形容词+介词
动词+名词
相当于不及物动词。take place发生
课时精练
[,用括号内所给单词的适当形式填空。
1.Don't forget
look)after the flowers and
animals when I'm away.
2.(2023·天水)Let me(
(tell)you about my
favorite book.
3.We were glad
(meet)our old classmates
when taking a trip in Beijing.
4.It's necessary for us
talk)to our parents
when we have problems.
5.We all think he is the best man (do)the job.
优
6.As a volunteer,my first job is
make)sure
of the students'safety(安全).
7.At the end of that year,Frank played his new music
(thank)his teachers and friends.
优
Ⅱ.单项选择。
(
)1.敬业精)神It
was
but Mr.
Yang was still thinking about the teaching
plan.
A.evening
B.midnight
C.morning
D.afternoon
优@
(
)2.Those volunteers work so hard to
money for the charity(慈善机构).
A.spend
B.give
C.raise
D.change
(
)3.(2023·绥化改编)一The old man lives
so he may feel
-We should visit him twice a month.
A.alone;lonely
B.lonely;alone
C.alone;alone
D.lonely;lonely