5.能较灵活的应用不等式的基本知识、基本方法,解决有关不等式的问题.
4.通过证明不等式的过程,培养自觉运用数形结合、函数等基本数学思想方法证明不等式的能力;
3.通过复习不等式的性质及常用的证明方法(比较法、分析法、综合法、数学归纳法等),使学生较灵活的运用常规方法(即通性通法)证明不等式的有关问题;
2.掌握解不等式的基本思路,即将分式不等式、绝对值不等式等不等式,化归为整式不等式(组),会用分类、换元、数形结合的方法解不等式;
1.在熟练掌握一元一次不等式(组)、一元二次不等式的解法基础上,掌握其它的一些简单不等式的解法.通过不等式解法的复习,提高学生分析问题、解决问题的能力以及计算能力;
不等式,不等式的基本性质,不等式的证明,不等式的解法,含绝对值不等式
二、考试要求
1.理解不等式的性质及其证明。
2
掌握两个(不扩展到三个)正数的算术平均数不小于它们的几何平均数的定理,并会简单的应用。
3.掌握分析法、综合法、比较法证明简单的不等式。
4.掌握简单不等式的解法。
5.理解不等式|a|-|b|≤|a+b|≤|a|+|b|。
19. Lee Yu chun was titled as the top thin beauty in Ansia , _______ caused a lot of disagreements in the field of entertainment.
A. that B. which C as D it
20 There were so many attractions in Disney Park. After lunch we came to a place, _______ stood a big tower.
A. which B. that C. / D. where
16. Was it in the waiting room ______ only allows mothers-to-be to enter that you lost your wallet?
A. / B. where C. that D. when
17 Obama, _______ life was once hard when he was young, were elected President of American.
A. for whom B. who C. to whom D. /
18 _______ has been announced, our government will take more measures to make the falling economics recover as soon as possible.
A That B As C It D What
15. The Beatles, ________ many of you are old enough to remember, came from Liverpool.
A. what B. that C. how D. as
14. Women _______ drink more than two cups of coffee a day have a greater chance of having heart disease than those ________ don’t.
A. who ; 不填 B. 不填 ; who
C. who ; who D. 不填; 不填
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