问题 填空题 案例分析题

某校学生在开展研究性学习时,进行人类遗传病方面的调查研究。下图是该校学生根据调查结果绘制的某种遗传病的家系图(显、隐性基因用A、a表示)。请分析回答:

若Ⅱ3和Ⅱ4均不患红绿色盲且染色体数正常,但Ⅲ8既是红绿色盲又是Klinefecter综合症(XXY)患者,其病因是Ⅱ代中的()号个体产生配子时,在减数第()次分裂过程中发生异常。

答案

参考答案:3;二

阅读理解

Selecting a proper summer camp for your child is not an easy task. You have to consider too many factors(因素). Remember, you are sending your kid to a summer camp not just to let him enjoy himself but also to help him become confident. So you should try to select a summer camp for your kid so that after he returns from the camp, the first thing that he asks you is when you will send him again for camping. Let us see how you can pick the best summer camp for your child.

Search the Internet

If you browse(浏览) the Internet, you will find a number of websites of summer camps where you can find all the detailed information about the camps. For example, how much the whole camping will cost, where the camps are, what children can do in the camps and what additional facilities (额外的设施) they can provide. Don't forget to read the comments(评论) of parents who have sent their children to those camps and pay attention to how they find those camps.

______________

Some camp organizers prefer advertisements in newspapers. Some of the organizers even invite famous people to their camps to communicate with kids. You should keep an eye in the summer camp advertisements in newspapers so that you could pick a suitable one for your kid.

Ask for advice from your child's school teachers

Go to your kid's school and ask his teachers whether they can give you names of some of the summer camps they consider to be the best.

Know the interest of your child

While searching, you will come across different types of camps. They are organized according to the nature and interest of children like a music camp, a sports camp, etc. So it is very important to know what your child is interested in before picking a summer camp.

小题1:Which of the following can be put on the line before Paragraph 3?

A.Place advertisements in newspapers.

B.Visit the organizers of summer camps.

C.Search for advertisements in newspapers.

D.Invite famous people to talk with your kid.小题2:We can know that in the writer's opinion, '

A.finding a proper summer camp for children is not difficult

B.the purpose of a summer camp is not only for children to have fun

C.what other parents think about a camp on the Internet is not believable

D.children usually don't have to go again after returning from a summer camp小题3:According to the last paragraph, before making the final decision, parents should_______.

A.consider the interest of their kid

B.rethink if camping is necessary

C.know everything about the camp

D.know the kid's performance at school

单项选择题