24. Whom ______ Tom saw it in the park last week?
A. it was that B. it was whom C. was it that D. was it whom
23. A great many books _______every year, and large quantities of them ______ well.
A. have published; sells B. have been published; sell
C. have been published; sells D. has been published; sell
22. ----I saw Jane and her boyfriend in the park at eight yesterday evening.
----Impossible. She ______ TV with me in my home then.
A. watched B. had watched C. would watch. D. was watching
第一节 单项填空(共15小题;每小题1分,满分15分)
21. While Kate was studying biology in France, she developed taste for fine wines.
A. the; a B. 不填;不填 C. 不填;a D. the; the
21、(本小题满分14分)
已知函数f(x)=x2,g(x)=|x-a|.
⑴当a=2时,求不等式f(x)>g(x)的解集;
⑵设a>1,函数h(x)=f(x)g(x),求h(x)在x∈[1,2]上的最小值.
安徽省两地三校2010届高三元旦联考数学(文)试卷
20、(本小题满分13分)
在数列{an}中,a1=1,an+1=(1+)an+.
(1)、设bn =,求数列{bn}的通项公式;
(2)、求数列{an}的前n项和Sn
19、(12分)在ΔABC中,∠A,∠B,∠C的对边分别为a,b,c
⑴设向量=(sinA,cosA),=(-sinB,-cosB)若‖,判断ΔABC的形状
⑵设向量=(2sinA,cosA),=(sinB,-cosB)若⊥,求的最大值
18、(本小题满分12分)已知数列{an}的通项an=n,数列中的项按下列数表排列:
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
……
⑴求第n行第一个数;
⑵求前n行各数之和。
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