问题 选择题

下列实例中,利用热传递的方式使物体内能增加的是(  )

A.两只手相互摩擦使手掌发热

B.阳光照射下,地表的温度升高

C.水沸腾后,壶盖被水蒸气顶起

D.“神七”返回舱进入大气层与空气摩擦生热

答案

A、两只手相互摩擦使手掌发热,是通过做功方法改变物体内能的,此过程中机械能转化成内能,不符合题意;

B、阳光照射下,地表的温度升高,是通过热传递的方法改变物体内能的,此过程中内能从太阳转移到地面上,符合题意;

C、水沸腾后,壶盖被水蒸气顶起,水的内能转化为壶盖的机械能,是通过做功方法改变物体内能的,不符合题意;

D、“神七”返回舱进入大气层与空气摩擦生热,是通过做功方法改变物体内能的,此过程中机械能转化为内能,不符合题意.

故选B.

阅读理解

D

Lex Kim English School Information Session Description

Lex Kim English School offers language improvement courses in reading, writing, grammar, and speech to students from Grades 3 to 11. All classes are conducted in English and class sizes are no larger than 10 students.

We are looking for full-time teachers and assistant teachers who’re interested in very organized self-starters. Our application process includes a phone interview, an in-person interview, and a sample teaching period. Additionally, all applicants must standards for the available positions:

Native English speakers with at least 15 years’ experience in teaching

A Bachelor’s degree or higher (preferably in education, English, or related fields)

Benefits

Teacher pay ranges from $26,000 to $45,000 depending on experience plus overtime pay and various performance-based prizes throughout the year free dinners, and other benefits.

Required documents:

The cover letter ( please indicate the position you are applying for )

The resume(个人简历)with your Date     The recent photo of yourself or the copy of your passport

At least two references(推荐信)from your former employer

Contact

Please visit our website at www.lexkimjob.com for more information and visit http://lexkimjob.com/apply/main.php to submit(提交)your application.

53. According to the passage, Lex Kim English School _______.

A. only offers classes to the students in the morning

B. has students of all ages who are weak in English

C. is very strict about the application process

D. is badly in need of part-time English teachers

54. Who is the most likely to be hired by Lex Kim English School ?

A. A Frenchman with a Bachelor’s degree in education

B. An American with a Master’s degree in economics

C. A Korean with a Doctor’s degree who has worked in America for 18 years

D. An Englishman who has 16 years’ experience in teaching in a Canadian college

55. We can know from the passage that _______.

A. applicants must hand in their passports to the school

B. teachers of Lex Kim English School must use English to teach grammar

C. the more experienced applicants are, the higher pay they will get

D. applicants can go directly to the school to apply for the positions

单项选择题