6.In our daily life, everyone fails every now and then. It is how you react that makes a ______.
A.development B.difference C.progress D.life
5.--- Jim managed to get into his house without the key._______?
--- I don't know. He might have asked someone for help.
A.What for B.So what C.Guess how D.Who knows
4.The ______ amount of money was not known though they knew it was large.
A.real B.exact C.possible D.great
3.--- When did you last hear _______ Jay?
--- He phoned me this morning, and we agreed ______ a time and place to meet.
A.of ; to B.about; with C.from; with D.from; on
2.Jack recommended me a few foreign movies, but _______ was to my taste.
A.all B.neither C.some D.none
第一节:单项填空(共20小题,每小题0.5分,满分10分)
从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项标号涂黑。
1.Thank you for sending us ______ fresh vegetables of many kinds. You have done us ____ great service.
A./;a B.the;a C./;/ D.the;/
22.已知函数(为常数)是实数集R上的奇函数,函数是区间[-1,1]上的减函数。
(1)求的值.
(2)若上恒成立,求的取值范围.
21.已知函数.
(1)求函数的单调区间
(2)若,求证:直线不可能是函数图像的切线.
20.已知的三个内角A、B、C所对的边分别为,向量,且 .
(1)求角A的大小;
(2)若,试求当取得最大值时角B和角C的大小.
19.已知向量,其中,已知函数的周期,且
(1)求的值;
(2)把的图象向左平移个单位,得到函数的图象,求在上的单调递增区间。
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