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问题 单项选择题

“当18世纪来临的时候英国正在孕育人类历史上一种崭新的生产方式”。这种“崭新的生产方式”指（）

A.家庭手工业

B.工场手工业

C.大机器生产

D.星系自动化

答案

参考答案：C

阅读理解
阅读理解。根据卡片内容，判断正(T)误(F)。
    My four friends talked about their weekends. And they wrote something on these cards.
    I stayed at home and studied over the weekend. I studied for my English course on Saturday.
Yesterday I wrote a history paper (考卷). In the evening I talked to my pen pal on the phone.
What did you do?
                                                                                                                                Judy
    I had a good time. On Saturday morning I played tennis, in the afternoon I went to the zoo,
and in the evening I went to Nancy's birthday party. On Sunday I went to the mountain with my
friend. 
                                                                                                                                Tim
    Oh, your weekend was great. But mine was boring. I stayed at home the whole weekend. I
cleaned my room and washed my clothes. I helped my mother do some housework. Did you
go out?
                                                                                                                                Mary
    No, I didn't. I stayed at home and watched TV on Saturday. Yesterday I watched a movie,
Last Blue Ballet. It was very exciting. 
                                                                                                                                Dave
( ) 1. Tim went to the zoo last weekend.
(     ) 2. Mary washed the clothes last weekend.
(     ) 3. On Sunday night, Judy watched a movie, Last Blue Ballet.
( ) 4. Dave played tennis last weekend.
(     ) 5. In the evening , Judy talked to her pen pal on the phone.
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解答题
已知向量
a
=（sinx，cosx），
b
=（cosx，-cosx），设函数f（x）=
a
•（
a
+
b
）．
（1）求f（x）的最小正周期；
（2）求f（x）的单调增区间；
（3）若函数g（x）=f（x）-k，x∈[0，
π
2
]，其中k∈R，试讨论函数g（x）的零点个数．
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