7.Perseverance is a kind of quality-and that’s_______it takes to do anything well.
A.what B.that C.which D.why
6.The young man managed to save a boy and received a medal in _______for his bravery.
A.award B.reward C.turn D.honor
5.She couldn’t come up with a solution to the problem, so she ________me for help.
A.asked for B.called at sulted with D.appealed to
4.He get well-prepared for the job interview ,for he couldn’t risk______the good opportunity.
A.to lose B.losing C.to be losing D.being lost
3.One thousand dollars a month is not a fortune but would help cover my living _______.
A.bills B.expenses C.prices D.charges
2.The boy has an amazing appetite ______American country music.
A.to B.on C.with D.for
第一节 单项选择(共25小题;每小题1分,满分25分)
从每题所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选项。
1. Everyone touched ______words after they heard her moving story.
A.beyond B.without C.of D.in
22.(12分)已知
是一元二次函数,不等式
的解集是(0,5),且
在区间[-1,4]上的最大值为12
(1)求
的解析式
(2)是否存在自然数
,使得方程
在区间(
,
+1)内有且只有两个不等实根?若存在,求
的值;若不存在,请说明理由。
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21.(12分)设数列{
}的前
项和![]()
(1)证明{
}是等比数列;
(2)证明
是等差数列;
(3)求数列{
}的通项公式
20.(12分)设函数![]()
(1)对于任意实数
,
≥
恒成立,求实数
的最大值
(2)若方程
有且仅有一个实根,求实数
的取值范围
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