问题 单项选择题 A1/A2型题

给患者注射胰岛素、葡萄糖后,不适宜作血清测定,因为此时体内钾代谢的变化()

A.无改变

B.细胞外钾进入细胞内

C.细胞内钾溢出到细胞外

D.尿钾增高

E.血钾增高

答案

参考答案:B

解析:

葡萄糖代谢需要钾参与,钾进入细胞内,细胞外钾降低。

阅读理解与欣赏

[甲]:清平乐

村 居

辛弃疾

       茅檐低小,溪上青青草。醉里吴音相媚好,白发谁家翁媪大儿锄豆溪东,中儿正织鸡笼。最喜小儿亡赖,溪头卧剥莲蓬。

        注释:①吴音:泛指南方话。媚好:柔和动听。②翁媪(媪:ao)老公公、老婆婆。③亡赖:这里是“调皮”的意思。

 [乙]:鹧鸪天

代人赋

辛弃疾

       陌上柔桑破嫩芽,东邻蚕种已生些。平冈细草鸣黄犊,斜日寒林点暮鸦。 山远近,路横斜。青旗沽酒有人家。城中桃李愁风雨,春在溪头荠菜花。 

       注释:①生些:孵出了小蚕。些:语末助词。②平冈:平坦的小山坡。③青旗:旧时酒店的青布招子。沽酒:美酒。

1、甲词中描写受到宠爱的最小的小孩躲在溪边只顾剥莲蓬吃的一句是____________________________;乙词中点明“春光所在”的一句是________________________。

2、描写农村生活是辛弃疾词的一个重要方面。两首词同是写农村生活,但各有侧重点。甲词侧重描写了

   ______________________________ ;乙词侧重绘写了_________________________________________。

3、有人说两首词在表达词人的思想感情方面是“大同小异”的,你是否赞同?请说说理由。

   ________________________________________________________________________________________

   ________________________________________________________________________________________

阅读理解

阅读理解。

     About 21,000 young people in 17 American states do not attend classes in school buildings. Instead,

they receive their elementary and high school education by working at home on computers. The center

for Education Reform says the United States has 67 public "cyberschools" and that is about twice as many

as two years ago.

     The money for students to attend a cybersehool cotes from the governments of the states where they

live. Some educators say cyberschools receive money that should support traditional public schools. They

also say it is difficult to know if students are learning well.

     Other educators praise this new form of education for letting students work at their own speed. These

people say cyberschools help students who were unhappy or unsuccessful in traditional schools. They say

learning at home by computer ends long bus rides for children who live far from school.

     Whatever the judgment of cyberschools, they are getting more and more popular. For example, a new

cyberschool called Commonwealth Connections Academy will take in students this fall. It will serve children

in the state of Pennsylvania from ages five through thirteen.

     Children get free equipment for their online education. This includes a computer, a printer, books and

technical services. Parents and students talk with teachers by telephone or by sending emails through their

computers when.necesary.

     Students at cyberschools usually do not know one another. But 56 such students finished studies at

Western Pennsvlváni? Cyber Charter School recently met for the first time. They were guests of honour at

their graduation.

1. What do we know from the text about students of a cyberschool?

A. They have to take long bus rides to school.

B. They study at home rather than in classrooms.

C. They receive money from traditional public schools.

D. They do well in traditional school programs.

2. What is a problem with cyberschoois?

A. Their equipment costs a lot of money.

B. They get little support from the state government.

C. It is hard to know students' progress in learning.

D. The students find it hard to make friends.

3. Cyberschools are getting popular became _____.

A. they are less expensive for students

B. their students can work at their own speed

C. their graduates are more successful in society

D. they serve students in a wider age range

4. We can infer that the author of the text is _____.

A. unprejudiced in his description of cyberschools

B. excited about the future of cyberschools

C. doubtful about the quality of cyberschoois

D. disappointed at the development of cyberschools