问题 单项选择题

患者高热1周。检查:体温40℃,脉搏90次/分,血白细胞4.0×109/L,嗜酸性粒细胞消失。应首先考虑的是()

A.伤寒

B.中毒性痢疾

C.中毒性肺炎

D.流行性脑脊髓膜炎

E.急性病毒性肝炎

答案

参考答案:A

解析:伤寒的特点是高热,血象偏低,嗜酸粒细胞消失,骨髓象中有伤寒细胞可临床确诊。

实验题

小红同学家的卫生间下水道堵塞了,他爸爸利用吸盘很快就将下水道疏通了,如图所示.为此他突然联想到所学过的大气压知识,于是,小红和小军同学合作利用吸盘设计了一个估测当地大气压强的实验方案:

【方案设计】

A.计算出当地大气压强.

B.将吸盘四周蘸上水,挤出里面的空气压在光滑的水平地面上;

C.用刻度尺测出吸盘的直径D;

D.用力竖直往上拉吸盘柄,直到吸盘脱离地面.根据经验估测拉脱吸盘所需拉力大小F.你认为正确的操作顺序是(填字母)                                    

【评估交流】

小红同学说:我们的实验原理是         ,操作过程规范,较方便地估测出了大气压强.

小军同学说:在操作中,我发现存在                                              

等问题,尽管我们的操作规范,但估测的结果误差较大.小红认真思考后,同意了小军的意见,然后,他们继续一起探讨如何改进方案,尽量减少测量误差.

根据小红和小军同学的实验记录及自我评估情况,请你回答:小红和小军测出的大气压强p=(用字母表示);实验时小军同学将吸盘四周蘸上水,这样做的目的是                                   ;要准确测量,应该利用课本中介绍的             进行测量,课本上的1atm=                  Pa

阅读理解

       There are many ways to find a job. Local stores often have areas where people can put small signs telling what kind of service they need or can provide. Such services include caring for children or cleaning houses.

Or, job searchers can look in the newspaper. Local newspapers have employment announcements placed by companies seeking workers.

Another popular tool for finding jobs is the Internet. For example, people in four hundred and fifty cities around the world can use the Craigslist Web site to buy objects, meet people or find a job. Craigslist says that it receives two million new job listings each month.

Another useful way to find a job is through a college or university. For example, students at the University of Texas can go to the Career Exploration Center to get help in finding a job. Of course, looking for a job requires knowing what kind of work you want to do. For example, there is a book called “What Color is Your Parachute (降落伞)?” by Richard Bolles. This book has been helping people choose a career (职业) since it was first published in nineteen seventy.

Some experts also help people find jobs. Susan W. Miller owns a company called California Career Services in Los Angeles. She says her company helps people find jobs by first helping them understand their advantages, goals and interests. Then she provides them with methods and resources to help them find the right job.

61. What is the passage mainly about?

A. Finding a job.                           B. College students’ part-time jobs.

C. Craigslist Web site.                       D. The relation between study and work.

62. By logging on the Craigslist Web site, you can ______.

A. sell your old things                      B. do some shopping online

C. create your own announcement board        D. get useful information about 450 cities

63. “What Color is Your Parachute?” is a book which gives tips to those who want to _____.

A. work on the airplane    B. buy a parachute    C. publish a book   D. find a suitable job

64. It can be learned from the passage that ______.

A. companies often put job information in local shops

B. the Internet is the most popular tool for job hunters in the USA

C. Susan W. Miller’s company is helping people choose careers

D. California Career Services mainly serves university students

65. How many ways of finding a job are mentioned in the passage?

A. Three.              B. Four.           C. Five.                D. Six.