8. Washington, a state of the USA, was named one of the greatest American presidents. A. in honor of B. in case of C. in favor of D. in spite of
7. -Have you known Dr Johnson for a long time? -Yes, since he the Chinese society. A. has joined B. joins C. had joined D. joined
6. Are there any DVDS on American history? If so, I want to borrow . A. them B. one C. it D. that
5. precious A. process B. function C. commercial D. article
第二节 语法和词汇知识(共15小题,每小题1分,满分15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
4. extra A. expensive B. excellent C. extreme D. exactly
3. nature A. natural B. vacation C. grammar D. courage
2. conclusion A. prison B. musician C. newspaper D. pleasure
第一节 语音知识(共5小题,每小题1分,满分5分)
从A、B、C、D四个选项中,找出其划线部分与所给单词划线部分读音相同的选项。
1. warm A. harm B. quarter C. dollar D.harmony
22. (14分)数列{an}中,a1=1, n≥2时,其前n项的和Sn满足:Sn2=an(Sn-) ⑴求Sn的表达式; ⑵(文)设bn=,求数列{bn}前n项和Tn (理)设bn=,数列{bn}前n项和Tn,求:Tn.
21. (12分)如图,线段AB经过x轴的正半轴上一点M(m, 0),两端点到x轴距离之积为2m,以x轴为对称轴,过A、O、B三点作抛物线. ⑴求抛物线方程 ⑵若tan<AOB=-1,求m的最大值.
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