7.求证:一个三角形中,至少有一个内角不小于,用反证法证明时的假设为“三角形的 ”.
答案:三个内角都小于
6.使不等式成立的条件是(
)
A. B.
C.,且
D.
,且
答案:D
5.以下数列不是等差数列的是( )
A. B.
C. D.
答案:C
4.求证:.
证明:要证,只需证
,即证
,
,
,
原不等式成立.
以上证明应用了( )
A.分析法
B.综合法 C.分析法与综合法配合使用 D.间接证法
答案:A
3.若是不全相等的实数,求证:
.
证明过程如下:
,
,
,
,
又不全相等,
以上三式至少有一个“
”不成立,
将以上三式相加得
,
.此证法是(
)
A.分析法 B.综合法 C.分析法与综合法并用 D.反证法
答案:B
2.用反证法证明一个命题时,下列说法正确的是( )
A.将结论与条件同时否定,推出矛盾
B.肯定条件,否定结论,推出矛盾
C.将被否定的结论当条件,经过推理得出的结论只与原题条件矛盾,才是反证法的正确运用
D.将被否定的结论当条件,原题的条件不能当条件
答案:B
1.下列说法不正确的是( )
A.综合法是由因导果的顺推证法
B.分析法是执果索因的逆推证法
C.综合法与分析法都是直接证法
D.综合法与分析法在同一题的证明中不可能同时采用
答案:D
某英文杂志就“建立和谐家园、和谐社会”为主题征文。请以“My family and I”为题,为该报写一篇征文。征文应包括以下要求:
①.家庭成员及其基本情况。
②.家庭成员对你的关心、帮助、理解。(举例说明)
③.家庭对你的重要性。
注意:1.词数:100词左右。2.文章中不能出现学校名称、姓名等个人信息。
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新建二中2010-2011学年度第一学期第一次月考答题纸
高三英语
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] |
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] |
36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] |
56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [A] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [B] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [C] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [D] [E] [E] [E] [E] [E] [F] [F] [F] [F] [F] [G] [G] [G] [G] [G] |
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新建二中2010-2011学年度上学期高三英语第一次月考
A.I’ve got two t 76 for the rock concert tomorrow evening. Would you like to go with me?
B. Sorry, I don’t like r 77 music very much.
A. What k 78 of music do you like?
B. Pop music especially country music.
A. Why do you like l 79 to the country music?
B. Well, the country singers often play the guitar while s 80 the songs. And I like playing the guitar.
A. What’s country music about?
B. It’s about c 81 things for everyone.
A. How a 82 rock music?
B. It expresses true f 83 about society、friend and even war.
A. What’s the greatest d 84 between pop music and rock music?
B. Most pop singers take music as their career, w 85 rock singers make music their life.
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