牛津版（深圳·广州）初中英语七年级下册Module 3 Na...

—Oh, it be true. I made a lot of mistakes in it. (must (not)/ may(not) /can(not))

—No, you needn't. (must (not)/ may(not) /can(not))

—No, you. My dad is sleeping. (must (not)/ may(not) /can(not))

—No, you ________ play it near the road. That's too dangerous!

—No, you__________. You may go home now, but you__________ go to the net-bar.

—__________. You may hand it in tomorrow morning.

—It__________ be him. He has gone to Hong Kong.

Can you buy me sweets from the shop?

Miss Gao in the classroom. I just saw her on the playground.

It my pen.

—I borrow your ruler?

—Of course. But you return it to me tomorrow.

—I have the television on?

—Yes, you. /No, you.

—I clean the blackboard now?

—Yes, you. /No, you. No, you .

   Do you know the way of using wind power to make electricity? There aremany advantages (优点) of using wind to make electricity. Here're some of them.

   First, it may be one of the cheapest ways to make electricity. Second,it can make and store hydrogen gas (氢气). The most important one is that itwon't pollute the environment. Besides, the wind power can be reused.

   But large wind farms might kill birds too, because the birds always flyinto the wind turbine (风力涡轮机). Scientists are looking for ways to stop them.

    Experts said that by the middle of the 21stcentury wind power could supply (供应) more than 10% of the world's electricity. The wind really helps usa lot.