2．下列变化属于物理变化的是

A．CO使人中毒　　　　　　　　 B．澄清石灰水长期露置在空气中

C．干冰变为二氧化碳气体　　　　 D．二氧化碳的水溶液使紫色石蕊试液变红

1．古代一些书法家、画家用墨书写或绘制的字画能够保存很长时间而不变色，这是因为

A．纸的质量好　　　　　　　　 B．碳的化学性质在常温下比较稳定

C．保存方法得当　　　　　　　 D．碳在任何条件下都不与其他物质反应

大熊猫是中国最为珍贵，也最为珍惜的动物之一，我们必须尽全力保护它们。请你写一封信给保护大熊猫俱乐部的主席，表明你想加入该俱乐部的愿望。字数约80词左右。

包括：1. 你的个人情况简要。

　　　 2. 你为什么要参加保护大熊猫俱乐部。

　　　 3. 你能为保护大熊猫俱乐部做些什么事。

　　　 4. 你的联系方式。

Room 103

31 Zhongshan Road

Nanjing 210000

14th June

Mr. Wang Gang

Chairperson

Giant Panda Protecting Club

15 Sun Road

Nanjing

Dear Mr. Wang

APPLICATION TO JOIN THE GIANT PANDA PROTECTING CLUB

根据对话内容在空白处填入适当的词或句子，使对话内容完整正确。

Jim: Hello! 6785238.

Wu: Hello! Could I　 86　 to Jim ,please ?

Jim: This is Jim .

Wu: Hi, Jim . Summer holidays will begin next week. 　87　 　will you spend your holidays this year ?

Jim: I’m going to Nanjing .

Wu: Oh, Nanjing is a　 　88　 　of interest . Have you ever been there before?

Jim:　 　89　 　. I’ve never been there. I’m told it’s a very hot there 　90 　summer.

Wu: Yes. By the　 　91　 　, how will you get there ?

Jim: By train.

Wu: I hope you will　 　92 　yourself in Nanjing.

Jim: Thank you . And what about you ?

Wu: Maybe my father will take me to a 　93　 　cities in the south.

Jim: That’ll　 　94　 　very interesting.　 Have a good time!

Wu: Thanks　 　95 　

Jim: bye.

85.Many people do not understand how important the wetlands are. (改为同义句)

　 Many people do not understand _______ _________ ___________ the wetlands.

84.More and more birds are in danger because they do don’t have enough living space. (改为同义句)

　 More and more birds are in danger because there are _______ ________ ________ living space for them.

83.I was doing shopping when the earthquake started. (对划线部分提问)

　 ______________________ when the earthquake started?

82.My father always drives carefully when he sends me to school. (对划线部分提问)

　 _________________________ when he sends you to school?

81.Hunters will kill it for its fur if they catch a giant panda. (对划线部分提问)

　 __________________________ if they catch a giant panda?