unit3重点讲解
1.“看起来”两不“像”:look like, look the same
as you can see, in some ways we look the same, and in some ways we look different.就像你看到的那样，在某些方面我们看起来一样，在某些方面我们看上去不同。
look like, look the same都可以表示“看起来像”之意。
（1）look like是由“不及物动词look+介词like”构成的动词词组，后面需接一个宾语。若表示“某人（物）十分相像”可用very much修饰。
lily looks like your younger sister very much. 莉莉看上去很像你妹妹。
（2）look the same是一个固定词组，表示主语所包含的两个或两个以上的事物看起来一样，主语一定是复数，其动词look不可能出现looks形式。look the same后面不再接其他成分，也不能用very much修饰。
are you twins? you look the same. 你们是双胞胎吗？你们看起来一样。
【练习】
（1）lucy looks _______her mother.
a: same b: the same c: as d: like
（2）although they are sisters, they don't _______ ________ ________（看起来一样）.
2.all, both“都”不同
we both have black eyes...我们都有黑色的眼睛......（p33）
both 与all的用法相似。both强调两者都，而all则强调三者或三者以上都。
both可用作形容词、代词和副词，其用法如下：
词条 区别 例句
代词 “两者，双方，两人”，与of连用 both of them are teachers.他们两都是老师。
both of the students are here.=both the students are here.
=the students are both here. 两个学生都在这儿。
副词 “两者，两者都”，位于行为动词之前，be动词、助动词、情态动词之后。 they both went shopping last sunday. 上周日他们俩都去购物了。
the twins are both students.这对双胞胎都是学生。
形容词 “两者的，双方的” she wants both dictionaries.这两本书她都想要。
both the answers are wrong.这两个答案都是错的。
连词 “......和....都”“既......又......”，用于连接两个并列成分；连接两个并列主语时，谓语动词用复数。 he speak both english and french. 他既会说英语，也会说法语。
both you and i were wrong.你和我都错了。
【练习】
1、选词填空（all/both）
（1）_________of the twins study in no.1 middle school.
（2）_________tom and john came over to our house for dinner.
（3）_________the students in his class went to the park last sunday.
2、那对双胞胎都喜欢运动。
they twins ________ ________ sports.
3、 至于其他科目，我全都喜欢。
as for other subjects, i likes them ________.
3.“无论如何”however
however, we both enjoy going to parties. 不过，我们两个都喜欢参加聚会。（p33）