广元高三复读学校招生条件-高考复读政策2021

广元高三复读学校

　　你是否已经想清楚是否真正的要复读？这个才是对于所有的有复读意愿的学子最重要的问题！想清楚这个问题，再考察学校都还来得及！广元高三复读学校可以了解一下新学高考！

广元高三复读学校入学检测选择题摘录

　　1、______ the flight to Shanghai will be delayed is ______ I’m especially worried about.

　　A. If; what

　　C. Whether; what

　　B. Whether; that

　　D. If; that

　　【知识点】复合句 【答案】

　　D

　　2、 In English classes, our teacher demanded that all of us ____ English as much as possible.

　　  A. should practice to speak   B. could practice to speak

　　  C. could practice speaking   D. should practice speaking

　　【知识点】情态动词 【答案】

　　D

　　3、 —Did you fix the computer yourself?

　　—No, I       , because I don’t know much about computers.

　　A．has it fixed           B．had fixed it           C．had it fixed            D．fixed it

　　【知识点】固定句型 【答案】

　　C

　　4、British and American scientists are raising genetically modified(转基因的) pigs in the hope of providing organs for transplant(移植) to humans, the project leader wrote in a newspaper Sunday.

　　Scientists in London and California have begun conducting the genetic experiments to find a solution to record–long waiting lists for organ transplants, Robert Winston said in an opinion piece written for Britain's Sunday Times.

　　In Britain alone, around 8,000 patients are waiting for a transplant.

　　"People needing a new heart or liver are waiting for someone else to die – usually a violent death in a traffic accident," Winston wrote in the newspaper. He said his team was "trying to modify pigs so their organs might save the lives of humans."

　　The scientists are introducing human genes into the animals to reduce the chances of the organs being rejected by patients, as has been common in previous attempts to use animal tissues, said Winston, who heads the Institute of Reproductive and Developmental Biology at London's Hammersmith Hospital.

　　Working with Dr. Carol Redhead of the California Institute of Technology, Winston's team has injected human genes directly into male piglets(猪仔), adding them to the animal's sperm(精子).

　　He said that pigs involved in experiments had successfully produced transgenic sperm, but acknowledged that British and European laws had prevented the team from using the pigs to mate.

　　The Sunday Times newspaper reported that the experiments would be moved to the United States following difficulties with funding and regulations in Britain. It said the pigs would be bred in Missouri.

　　"Our U.S. friends will benefit from our technology and the income we might have produced for Britain will be lost," Winston wrote.

　　Some scientists have previously blamed the idea of using animal organs for human transplant, saying the technique risks spreading animal viruses to humans. Winston said his research project is attempting to breed virus-free pigs.

　　49. Scientists are introducing human genes into the animals to ____________.

　　A. make the organs healthier

　　B. reduce the pain of animals

　　C. make the organs live longer

　　D. reduce the chances of rejection

　　50. Some scientists have blamed the idea of using animal organs for human transplant because ____________.

　　A. the technique is not perfect now

　　B. humans may be infected with animal viruses

　　C. it is against laws and regulations

　　D. it may cause a conflict between humans and animals

　　51. According to Winston, it seems ___________ to Britain to move the experiments to the United States.            

　　A. a pity

　　B. a pride

　　C. a disaster

　　D. a good idea

　　52. It can be inferred from the passage that ____________.

　　A. animal organs are commonly used for human transplant now

　　B. lots of patients need animal organ transplants now

　　C. examples of the animal tissues being rejected have happened

　　D. it is not safe to use animal organs for human transplant

　　【知识点】科普环保类阅读 【答案】

　　 DBAC

　　5、 ___________________, and we will do the work better.

　　    A. Given more time                    B. Give us more time

　　C. Giving us more time                 D. Having given us more time

　　【知识点】非谓语动词 【答案】

　　B

解析:

　　略

　　6、 The moment the earthquake happened，a large amount of help from China __________

　　  A．were provided  B．will be provided

　　  C．was provided  D．was being provided

　　【知识点】动词时态与语态 【答案】

　　C

　　7、 图中A→G表示某基因型为AaBb的高等动物睾丸内细胞分裂图像和染色体数目变化曲线。请据图回答：

（1）细胞图像D→F属于________分裂；D→A属于________分裂。

（2）图中C细胞和A细胞分别叫做________、________。

（3）写出图中一个D细胞经C细胞形成的配子的基因型_________________________。

（4）图中D细胞在分裂产生配子时A与a的分离和a与a的分开分别发生在坐标G中的________、________阶段（用数字表示）。

（5）图A、B、C、E中含有同源染色体的是________________________。

【知识点】减数分裂和受精作用

【答案】

 （1）有丝  减数  （2）初级精母细胞  次级精母细胞

（3）Ab、aB  （4）1   3  （5）C、E

　　8、下图的五个细胞是某种生物不同细胞分裂的示意图，（假设该生物的体细胞只有4条染色体）请回答以下问题：

 

（1）A、B、C、D、E中属于有丝分裂的是__________，属于减数分裂的是___________。

（2）A细胞有___________条染色体，有________个DNA分子，属于_________期。

（3）具有同源染色体的细胞有______________________________________。

（4）染色体暂时加倍的细胞有______________________________________。

（5）不具有姐妹染色单体的细胞有______________________________________。

【知识点】减数分裂和受精作用

【答案】

（1）AC    BDE    （2）8   8    有丝分裂的后期   （3）ABCE

（4）AD   （5）AD

广元高三复读学校

　　9、下列关于体液免疫和细胞免疫的叙述，错误的是

A．细胞免疫和体液免疫都属于特异性免疫

B．细胞免疫和体液免疫部分过程是相同的

C．T细胞和浆细胞都能产生免疫活性物质

D．效应T细胞和浆细胞都能特异性识别抗原

【知识点】免疫调节

【答案】

D

【解析】

试题分析：人体特异性免疫包括体液免疫和细胞免疫，A正确；体液免疫和细胞免疫部分过程相同，B正确；T细胞可以产生淋巴因子，浆细胞可以产生抗体，C正确；浆细胞不能识别抗原，D错误。

考点：本题考查体液免疫和细胞免疫的相关知识，意在考查考生理解所学知识的要点，把握知识间的内在联系的能力。

　　10、如右图所示，甲、乙分别用不透光的锡箔纸套在燕麦胚芽鞘的不同部位，丙、丁、戊则分别用不透水的云母片插入燕麦胚芽鞘的不同部位，从不同方向照光，培养一段时间后，胚芽鞘的生长情况是（  ） 

  

   A．甲不生长也不弯曲、乙直立生长、丙向左生长、丁直立生长、戊向右生长

    B．甲直立生长、乙向右生长、丙向左生长、丁不生长也不弯曲、戊向左生长

    C．甲向左生长、乙向右生长、丙直立生长、丁向右生长、戊向左生长

    D．甲直立生长、乙向右生长、丙直立生长、丁不生长也不弯曲、戊向右生长

【知识点】植物激素调节

【答案】

D

　　11、如图表示渗透作用装置图，其中半透膜为膀胱膜蔗糖分子不能通过，水分子可以自由通过）。图中溶液A、B、a、b均为蔗糖溶液，其浓度分别用MA、MB、Ma、Mb表示，且MA＞MB，Ma=Mb＞MA。一段时间达到平衡后，甲装置、乙装置液面上升的高度分别为h1、h2，a、b的浓度分别为M1、M2，则    (      )

A.h1＞h2，M1＜M2        

B.h1＜h2，M1=M2

C.h1＞h2，M1＞M2        

D.h1＜h2，M1＞M2

【知识点】物质进出细胞的方式

【答案】

D

　　12、下列实验中关于酒精作用的描述不正确的是

【知识点】细胞增殖

【答案】

　　最后感谢大家对小编的支持，新学高考专注高考，祝所有的高考学子都能金榜题名迈入理想的大学！