问题 问答题 简答题

简述作物间作、混作、套作的区别。

答案

参考答案:

间作:两种或两种以上生育季节相近的作物,在同一块地上同时或同季节成行或成带状间隔种植。混作:两种或两种以上生育季节相近的作物,按一定比例混合撒播或同行混播在同一块田地上。套作是在前作物的生育后期,在其行间播种或移栽后作物的种植方式。

间作和混作的作用相似,只是配置形式不同,它们都是充分利用空间,增加光能利用率。而间作与套作不同,间作中的两作物共生期占全生育期的主要部分或全部,而套作其共生期只占生育期的一小部分时间,它是选用两种生育季节不同的作物,一前一后结合在一起。

阅读理解

The Internet can show you lots of jobs all over the world. If you want to find a job on the Internet, use the words “job search” or “employment (职业)” to find the websites you need. Type in what you want and where you want to work. In a few seconds, a list of jobs will appear on the screen. You can also type in the name of a company to learn about jobs there. Many websites list full-time and summer jobs.

Job search websites can help you in other ways, too. They show you how to write a good resume(履历) and how to get ready for an interview(面试). They also tell you what to say to an interviewer on the telephone. Some websites give you interview conversations to practice. One website even has a dictionary of interview words. A good employment website can be a big help in your job search.

Good luck with your job-hunting.

(    ) 11. What should you do first if you want to find a job on the Internet?            

A. To type in “job search” or “employment” to find the websites.

B. To write a good resume.

C. To get ready for an interview.

D. To get an English dictionary.

(    ) 12. Some employment websites tell you how to have a job interview            .

A. face to face       B. in an e-mail     

C. in a letter         D. on the telephone

(    ) 13. From the passage, we know that            .

A. you can’t look for a summer job on the Internet

B. Some websites show you how to write a resume

C. if you type in the name of a company, you will get a job there easily.

D. the Internet can only show you a list of jobs of your own country.

(   ) 14. The underlined word “job-hunting” means            .

A. searching a job       B. giving a job     

C. doing a job          D. changing a job

(   ) 15. What’s the main idea of the passage?            

A. The Internet lists a large number of companies.

B. You can find many websites on the Internet.

C. It’s about how you can use the Internet to find a job.

D. There are different ways for you to look for jobs.

单项选择题