问题 单项选择题

男性,43岁,下肢静脉曲张2个月。患者取卧位,下肢抬高,检查者自踝部向上按摩患肢.使静脉空虚,用止血带压住近侧大腿部,然后让病人站立。当放开止血带,大隐静脉迅速自上而下逆行充盈,这提示

A.小腿交通支静脉瓣膜关闭不全

B.大隐静脉入股静脉处瓣膜闭锁不全

C.大隐静脉瓣膜关闭不全

D.下肢浅静脉瓣膜闭锁不全

E.下肢深静脉阻塞

答案

参考答案:C

解析:大隐静脉瓣膜功能试验(Tren- delenburz试验):排空下肢静脉血,于大腿根部扎止血带,压迫大隐静脉,让病人站立,10秒钟内放开止血带,如出现自上而下的静脉曲张,则表示静脉瓣膜功能不全;如未放开止血带前就见止血带下方静脉30秒内充盈,表示交通静脉瓣膜关闭不全。

选择题
写作题

第二节读写任务 (共1小题,满分25分)

阅读下面的短文,然后按照要求写一篇150词左右的英语短文。

Most high schools begin their day around 7:00 a.m., which leaves many teenagers nodding off in the morning. In fact, at least 20 percent of high school students fall asleep in class on a typical day. The problem: Teenagers need a lot of sleep-about nine hours each night, experts say. And most of them aren’t getting enough.

To help sleepy teens, some school districts of USA have tried delaying the opening of the high school day. The Minneapolis school district, for example, changed its start time from 7:20 to 8:40 a.m., giving its 12,000 high schoolers an extra hour and twenty minutes each morning.

Researches show that students in schools of these districts benefit a lot from the change. Students reported less depression when there was a later starting time. And teachers reported that students were more alert and ready for learning. Parents reported that their children were easier to live with because their emotions were more regulated.

Teachers especially wanted a change because they were concerned about student attendance and student readiness to learn that first period of the day. The change resulted in better attendance and less student sleeping in class that first hour.

[写作内容]

某英文学习报刊登了上述文章,并邀请读者就“高中生是否应该推迟上课”进行讨论。假设你是某校高三的学生李华,看了报道后,你打算联系自己的实际发表你的看法,内容要点包括:

1. 以约30词概括上述文章的内容;

2. 以约120词谈谈你的观点,并包括以下内容:

(1)你是否适应你校目前早上的上课时间;

(2)你是否赞成推迟高中早上的上课时间,并说明理由。

[写作要求]

1. 在作文中可以使用自己亲身的经历或虚构的故事,也可以参照阅读材料的内容,但不得直接引用原文中的句子;

2. 作文中不能出现真实姓名和学校名称。

[评分标准]

概括准确,语言规范,内容合适,篇章连贯。