13. __________ in the traffic jam, he was likely to be late for the job interview.
A. Being stuck B. Having stuck C. Stuck D. Got stuck
12. There is a lot of love in today’s world and I’m convinced that this is still the most powerful ______ in the world.
A. power B. energy C. force D. strength
11. In the action adventure movie Avatar, James Cameron, ______director of Titanic, takes us to __________ new world beyond our imagination.
A. a; the B. the; a C. a; a D. the; the
10. ----The last one _____ pays the meal.
----Agreed!
A. arrived B. arrives C. to arrive D. arriving
9. _________school work, I spend most of my spare time singing and dancing.
A. Together with B. In terms of C. In exchange for D. Apart from
8. My brother has been preparing carefully for the English exam, so that he can be sure of passing it at his first _______
A. request B. attempt C. promise D. purpose
7. I’m sorry you’ve been waiting so long, but it’ll still be some time ______ Smith gets back.
A. before B. since C. till D. after
6. ----How long will you stay in Peking University?
---- I don’t know. ________.
A. It depends B. Not at all C. It doesn’t matter D. Never mind
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的划线部分读音相同的选项,并在答题卡上将该项涂黑。
例:have A. gave B. save C. hat D. made
答案是C。
1. burst A. survival B. confirm C. govern D. advertise
2. steak A. great B. wealth C. appeal D. react
3. otherwise A. cloth B. thirst C. clothing D. throat
4. attach A. technology B. machine C. school D. charge
5. punish A. cushion B. quantity C. conclude D. unable
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,并在答题卡上将该项涂黑。
例:We ______ last night, but we went to the concert instead.
A. must have studied B. might study
C. should have studied D. would study
答案是C。
45.(11分)现有4个纯合南瓜品种,其中2个品种的果形表现为圆形(圆甲和圆乙),1个表现为扁盘形(扁盘),1个表现为长形(长)。用这4个南瓜品种做了3个实验,结果如下:
实验1:圆甲×圆乙,F1为扁盘,F2中扁盘:圆:长 = 9 :6 :1
实验2:扁盘×长,F1为扁盘,F2中扁盘:圆:长 = 9 :6 :1
实验3:用长形品种植株的花粉分别对上述两个杂交组合的F1植株授粉,其后代中扁盘:圆:长均等于1:2 :1。综合上述实验结果,请回答:
(1)南瓜果形的遗传受 对等位基因控制,且遵循 定律。
(2)若果形由一对等位基因控制用A、a表示,若由两对等位基因控制用A、a和B、b表示,以此类推,则圆形的基因型应为 ,扁盘的基因型应为 ,长形的基因型应为 。
(3)为了验证(1)中的结论,可用长形品种植株的花粉对实验1得到的F2植株授粉,单株收获F2中扁盘果实的种子,每株的所有种子单独种植在一起得到一个株系。观察多个这样的株系,则所有株系中,理论上有1/9的株系F3果形均表现为扁盘,有 的株系F3果形的表现型及数量比为扁盘:圆 = 1 :1 ,有 的株系F3果形的表现型及数量比为 。
唐山一中2009-2010学年度第二学期期末考试
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