请从给定化合价的五种元素中，选择适当的元素，按要求写出物质的化学式：单质 ____　；碱　 ____；可作为复合肥料的盐 ____　．

中国之所以能在国际舞台上频繁“精彩”亮相，得益于（    ）

①改革开放以来我国经济快速发展     ②我国日益增强的综合国力

③全面建成小康社会目标的实现         ④中国在国际上的领导地位

我会查字典。

① “舱”字用部首查字法先查部首____，再查____画，组词为____

②“卫”字用音序查字法先查音序____，再查音节____，组词____

从方框中选择恰当的词并用其适当形式填空。

Host: Welcome to 9 o'clock Weekend Talk. We're talking to Bill, a____ boy. He is from US. Hello, Bill. Welcome to the show.

Bill: Thank you.

Host: You came to China five years ago. Your Chinese must be very good.

Bill: I practice ____ it every day. I ____ reading Chinese stories and listening to Chinese songs.

Host: Do you like to play ____?

Bill: Yes, I do. And basketball is my favorite.

Host: Really? What do you ____ baseball?  

Bill: I love it, too. ____ American boys love to play it.

Host: Do you like to watch TV?

Bill: Yes, I do.

Host: What do you think of soap shows?

Bill: I ____ them. They are really boring.

Host: ____ Chinese Cooking?

Bill: I don't mind it. In fact, my mom loves it.

Host: How do you ____ China?

Bill: It's great.

Host: OK! Thank you for ____ us, Bill!

Bill: You're welcome.