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问题 选择题

下列变化属于化学变化的是 [ ]

① 蜡烛燃烧  ②汽油的挥发  ③湿衣服晾干  ④火药爆炸  ⑤铁铸成锅  ⑥铜器在潮湿空气中表面有铜绿生成  ⑦铜导电

A.①③⑤⑥⑦         

B.①②④⑥           

C.②③④⑤⑦         

D.①④⑥

答案

答案：D

选择题

植物的主要组织包括（　　）

①输导组织

②基本组织

③上皮组织

④分生组织

⑤结缔组织

⑥保护组织．

A．①②③④

B．①②④⑥

C．③④⑤⑥

D．②③④⑥
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补全对话，情景问答
补全对话。
A. That would be great.
B. What are you doing here?
C. Are you going to the same Wushu class?
D. Yes, thanks.
E. Do you like Wushu?
Mr. Huo: Hi, Tony. 1.            Do you need any help?
Tony: 2.            I am looking for the Wushu Club. My Wushu lesson is starting now. I'm late.
Mr. Huo: Would you like to come along? I'm going there, too.
Tony: Thank you. 3.            
Mr. Huo: 4.           
Tony: Yes, I love it very much.
Mr. Huo: Very good. Tony, let's run to the Wushu class. I am late for the class, too.
Tony: Really? 5.            
Mr. Huo: Yes. I'm the new teacher of the Wushu Club.
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