27.The red flag looks extremely beautiful the blue sky and white clouds.
A.through B.across C.against D.beyond
26.How long do you think __________ the computer company turns out a new product?
A.it will be that B.will it be until
C.will it be since D.it will be before
25.- Good morning.How much should I pay for these books __________ to Alabama?
- Hmm, about ten dollars.
A.to be sent B.being sent C.sent D.having been sent
24.China’s new food law provides for a food recall system __________ producers have to stop production if their food isn’t up to standards.
A.where B.that C.when D.which
23.- Do you think the weather is good enough for the picnic?
-Yes.You couldn’t hope for __________ day at this time of the year.
A.a nice B.the nice C.a nicer D.the nicest
22.- What about Mr.Brown’s speech?
- I understood most of what he said, but not __________ word.
A.any B.each C.every D.one
第一节 单项填空 (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,并在答题卡上将该项涂黑。
例:It is generally considered unwise to give a child ___________ he or she wants.
A.however B.whatever C.whichever D.whenever
答案是B。
21.- Really? Who will give __________ lecture next Saturday?
- Mr.Wang, __________ professor from Nanjing University.
A.the; 不填 B.the; a C.a; the D.a; a
22.(本小题14分)
已知函数在处取得极值。
(Ⅰ)求函数的解析式;
(Ⅱ)求证:对于区间上任意两个自变量的值,都有;
(Ⅲ)若过点可作曲线的三条切线,求实数的取值范围。
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