– What do you know about _______?
-- Line drawings that show how something works.
A. pictures B. diagrams
C. programmes D. paintings
Try to give its meaning when you meet a new word. Don’t _____ your dictionary all the time.
A. work on B. take on
C. keep on D. depend on
It’s common ______ that the Japanese eat Sushi.
A. information B. knowledge
C. direction D. instruction
The main unit _________ all the computer’s electronics.
A. contains B. shows
C. uses D. helps
You _______ ever saw computers years ago, but now they are everywhere.
A. sometimes B. usually
C. hardly D. almost
人类只有一个地球。根据提示，以“Saving the Earth”为题，写一篇80词左右的短文。
提示: 1.如何保护环境已成为世界最大难题之一；
2.各种污染破坏环境，损害健康；
3.不要乱倒垃圾，乱排废水；4.我们应该保护环境，使我们的家园更加美丽。
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