Unit 3 A healthy life using language课时作业

Ⅰ. 短语填空

　　stay away from；break the habit；give up；stay up late；all day long；be short for；to conclude；discriminate against；letter by letter；known as

　　1. Samuel Clemens，________ Mark Twain，was a famous American writer.

　　2. Why did you ________ school?

　　3. We read in two ways：a new or unknown word is spelled out ________.

　　4. I wish I could ________ smoking.

　　5. Laws are needed which do not ________ anyone.

　　6. ________，it was a great success.

　　7. Doing anything ________ will come to nothing but get us bored.

　　8. I am going to ________ to finish my paper.

　　9. It is a pity to ________ the job.

　　10. USA ________ the United States of America.

　　答案　1. known as　2. stay away from　3. letter by letter　4. break the habit of　5. discriminate against

　　6. To conclude　7. all day long　8. stay up late

　　9. give up　10. is short for

Ⅱ. 翻译句子

1. 教育是我们可以用来同艾滋病作斗争的强大武器。(a powerful