A．                      B．                   C．                      D．

4．若的值为                                                      （    ）

       A．1                        B．                    C．2                        D．

3．已知关于x的二项式展开式的二项式系数之和为32，常数项为80，则a的值为                       （    ）

       A．               B．                 C．                    D．3

2．已知抛物线的焦点与双曲线的一个焦点重合，则该双曲线的离心率为                        （    ）

       A．              B．               C．               D．

1．已知全集        （    ）

39. It seems that Yu Mei has changed a lot.  俞梅似乎变化很大。

动词seem是“看起来像”，“似乎”的意思，其常用的句型有：

◎It seems+that 从句It seems that he would never be able to work out the question.

看来他好像永远无法解决那个问题。

◎seem+形容词    Your father seems quite happy. 你的父亲看起来很高兴。

◎seem+动词不定式  Li Fang seems to know everything.李芳好像什么都知道。

 “It seems+that 从句”通常可以转化成“名词/代词+seems+动词不定式短语”这一简单句型，如果动词不定式短语是“to be+形容词”，to be可以被省略。

It seems that his temperature is all right.

=His temperature seems (to be) all right. 他的体温似乎很正常。

It seems that she doesn’t get on well with her classmates.

=She doesn’t seem to get on well with her classmates. 她似乎与同学们相处的不好。

38. go to sleep 入睡        be asleep       fall asleep