13. My son has been _________ this dream for a long time, and he is very interested in performing. I just want to help him fulfill his dream.
A. holding up B. holding back C. holding on D. holding on to
12. A huge earthquake struck central Chile, ________ widespread destruction and 799 deaths.
A. causing B. to cause C. caused D. having caused
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. Nowhere in the world are fireworks so much a part of people’s culture as they are in China, _______ they’ve been in use for more than 2,000 years.
A. where B. when C. why D. what
9. _____ you have tried your best, I don’t care about the final result. A. As soon as B. As well as C. So far as D. So long as
8. Once environmental damage _________, it takes many years for the system to recover. A. has done B. is to do C. does D. is done
7. World No. 2 badminton player Lin Dan of China has _________ the quarter-finals of the men’s singles at the All-England Open.
A. got B. reached C. played D. included
6. -I am terribly sorry to have knocked over your soup.
-________!You didn’t mean to, did you?
A. All right B. Forget it C. Not at all D. Take it easy
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. trade A. native B. majority C. manner D. damp
2. southern A. worth B. breath C. thought D. smooth
3. mirror A. technique B. unite C. silver D. silence
4. experience A. experiment B. example C. exercise D. explanation
5. blanket A. wound B. finger C. sudden D. stranger
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。
34.(12分)某雌雄异株的植物(2N=16),红花与白花这对相对性状由常染色体上一对等位基因控制(相关基因用A与a表示),宽叶与窄叶这对相对性状由X染色体上基因控制(相关基因用B与b表示)。研究表明:含XB或Xb的雌雄配子中有一种配子无受精能力。现将表现型相同的一对亲本杂交得F1(亲本是通过人工诱变得到的宽叶植株),F1表现型及比例如下表:
|
红花宽叶 |
白花宽叶 |
红花窄叶 |
白花窄叶 |
雌株 |
3/4 |
1/4 |
0 |
0 |
雄株 |
0 |
0 |
3/4 |
1/4 |
(1)F1的父本的基因型是______________,无受精能力的配子是______________。
(2)取F1中全部的红花窄叶植株的花药离体培养可得到__________植株,基因型共有4种,比例是_________________。
(3)将F1白花窄叶雄株的花粉随机授于F1红花宽叶雌株得到F2,F2随机传粉得到F3,则F3中表现型是____________________________,相应的比例是______________。
唐山一中2010高考模拟试卷(一)
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