下面列出了几组物质，请将物质的合适组号填写在空格上。⑴同位素       ，⑵同素异形体__________；⑶同系物      ，⑷同分异构体       。
①金刚石与“足球烯”C₆₀；    ②D与T；   ③¹⁶O、¹⁷O和¹⁸O；
④氧气（O₂）与臭氧（O₃）； ⑤CH₄和CH₃CH₂CH₃；
⑥乙醇（CH₃CH₂OH）和甲醚（CH₃OCH₃）；
⑦和；  ⑧               和；

 阅读下面材料，根据其内容完成后面各项任务。

Here is www．fyv． com（fyv-from your voice）． You must meet with some unpleasant things in your life, and you don't know how to work them out． If so, you can click our website www．fyv．corn． You can write them down． Let's find the solution, OK?

Problems	Solution
Some people always smoke in public．	You could say politely，“Excuse me，could you please put out your cigarette?”
There are too many people in No．16 bus．	Call the bus company．
Some people always drop litter everywhere in our community（社区）．	Put up some posters to warn．And if someone is found dropping litter，punish him badly．
Some students talk loudly in the library．	?
My parents don't allow me to go out to play． Even on weekends，they hope I stay at home and study．	Tell your parents that you need to relax after studying for a long time or ask your teacher for help．
有几个学生上课经常迟到。	Tell them to go to class on time．

1．If some students talk loudly in the library，you could say politely，“ ___________”

2．将画线的英语句子译成汉语。

3．将汉语句子译成英语。

4．What's the Chinese for from your voice?

5．How many problems can you see on the website?

重新排列下面句子的顺序，组成一组完整的对话.

(1) How are you?

(2) Do you want to go to a movie?

(3) Hello, Ben.

(4) Do you want to go to an action movie?

(5) I'm fine, too.

(6) Yeah, I do.

(7) Oh, hello, Sally.

(8) Fine, thank you, and you?

(9) No, I don't. I want to go to a comedy?

A．3-7-1-8-5-2-6-4-9

B．7-8-1-3-5-2-6-4-9

C．3-7-1-8-2-5-4-6-9

D．7-1-8-3-5-2-6-4-9