2021吉林中考考试考前冲刺卷(3).docx
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1、2021吉林中考考试考前冲刺卷(3)本卷共分为1大题50小题,作答时间为180分钟,总分100分,60分及格。一、单项选择题(共50题,每题2分。每题的备选项中,只有一个最符合题意) 1.番茄果皮红色(对黄色番茄(d)为显性,若将红色番茄(Dd)的花粉授到黄色番茄(dd)的柱头上,则黄色番茄(多个柱头授粉),则黄色番茄植株上所结种子的基因型及果皮的颜色分别是A:种子的基因型为Dd dd 果皮的颜色为红色 黄色B:种子的基因型为Dd 果皮的颜色为红色C:种子的基因型为Dd dd 果皮的颜色为黄色D:种子的基因型为Dd dd 果皮的颜色为红色2.1989年,我国科学家成功地将人的生长素基因导入鲤鱼
2、的受精卵中,有这样的鱼卵发育成的鲤鱼,生长速度明显加快了。以上事实说明A:细胞中的基因有显、隐性之分B:细胞中的基因是成对存在的C:基因位于染色体上D:生物性状是由基因控制的。3.Dont forget to put the book back on the shelf,_?A:do youB:dont youC:will youD:wont you4.I looked under_ table and found_pen I lost yesterday.A:the; aB:the; theC:/; theD:the;/5.She has written a lot of books, bu
3、t_ good ones.A:anyB:someC:fewD:many6.Did you wash your clothes?No, I was going to wash my clothes but I_ visitors.A:have hadB:haveC:hadD:will have7.The young man came riding full speed down the road on his bicycle._ it was!A:How dangerous the sceneB:What dangerous a sceneC:How a dangerous sceneD:Wha
4、t a dangerous scene8. Im going to take my driving test tomorrow._!A:Good luckB:CheersC:Come onD:Congratulations9.Look ! Shes skiing so fast!Hard to_ her legs were once broken.A:knowB:realizeC:imagineD:find10.Did you see a girl in red pass by just now?No ,sir. I_ a newspaperA:readB:am readingC:would
5、readD:was reading11.We hope that as many people as possible_ join us for the charity show tomorrow.A:needB:canC:mustD:should12.We have worked too hard. Lets stop a break.A:havingB:to havingC:haveD:to have13.When did you become a volunteer?Two years ago. I_ this group since then.A:have joined inB:hav
6、e joined toC:have been inD:have been to14.You dont look well. Whats the matter?I_ sleep well.A:dontB:didntC:wontD:havent15.His great progress in English made his parents really_A:happyB:happilyC:sadD:sadly16.I hear you like basketball very much._ you on your school team?Yes, I am.A:AmB:WasC:WereD:Ar
7、e17.Do you know_?Tomorrow morning.A:when the visitors will come hereB:when will the visitor come hereC:how the visitor will come hereD:how will the visitor come here18._? Ive got a headache.A:Have you got a headacheB:What do you want to doC:Can I help youD:Whats wrong with you19.Chinese climbers car
8、ried the Olympic Flame(奥运圣火) to the top of the worlds highest mountain_8th May 2008.A:onB:atC:inD:from20.Have you heard the good news?No, what_?A:is itB:is thereC:are theyD:are those21. Would you like to go to the_ with me tonight? Id like to, but Im afraid I am not free.A:planB:playC:photoD:price22
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