内容正文:
Unit3 Topic1
语法快递:小议“used to”
used to 意为“过去常常;曾经”,其中to是不定式符号。“used to +动词原形”意为“过去经常做某事”,它强调“过去的习惯(过去经常反复发生的动作)或状态(现在已经不复存在)”,它只是一种形式,即过去式,可用于所有人称,没有人称和数的变化。
如: Li Ming used to be a doctor,but now he is a worker.
李明过去是一名医生,但是现在他是一名工人。
used to 构成否定式和疑问式时,通常有两种方法:即借助助动词did或直接将used用作助动词。其否定式是didn't use to或used not to。
如: Did you use to paint by the river.你过去常在河边画画吗?
She didn't use to/used not to get up early.她过去不习惯于早起。
语法延伸
(1) be used to doing sth的意思是“习惯于做某事。”其中to是介词,后可接名词、代词或动名词等。表示某种状态,并没有特指过去习惯。如:I am used to listening to music now.我现在习惯听音乐了。
(2) become/get used to doing sth. 侧重于“变得习惯做某事”,它表示动作。
be used to doing…与get used to doing…一般可以互换。
(3) be used to意为“被用来……”,是动词use的被动语态,其中to是动词不定式符号,后接动词原形。如 A hammer is used to drive nails.锤子是用来钉钉子的。
学以致用
选择适当的短语并用其适当形式填空。
1. There______________ be a lake near the river.(used to/be used to)
2. Wood can______________ make desks.(used to/be used to)
3. I_____________ drinking a cup of water before going to bed.(used to/be used to)
词汇集锦
such as和for example两者都可以表示“例如”。但用法有所不同。
1. such as用来列举事物时,一般列举同类人或事物中的几个例子。插在被列举的事物和前面的名词之间。as后不可有逗号。
2. for example用来举例说明某一论点或情况,一般只列举同类人或物中的“一个”为例,做插入语,用逗号与句子其他成分隔开,可位于句首、句中或句末。
1. The farm grows many kinds of crops,_______________ wheat,corn,cotton and rice.
2. Some students,____________, Jorn, live in the city.
3. What would you do if you met a wild animal, a lion,_______________.
4. _________________, air is invisible.
5. Some boys___________________ Tom and Mike like to play football.
一、选择题。
( )1.Wu Rui likes keeping clean very much. She _______ a bath twice a week.
A.takes B.take C.have D.washes
( )2.Wang Yanbo’s mother is fond of _______.
A.cook B.cooker C.cooking D.cooked
( )3.Why _______ go out for a walk after supper?
A.don’t B.didn’t C.not D.doesn’t
( )4.Hobbies can _______ us happiness, friendship and knowledge, so we have hobbies.
A.get B.take C.took D.bring
( )5.—What’s your hobby?
—I _______ listen to music, but now I enjoy dancing.