(找几组学生汇报练习成果.) T: I want someone to act out your dialog. Who can do it? G1: Where is-?

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

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有几位学生遗失了一些物品，请根据以下信息为他们写完寻物启事的布告。
Peter: I lost a gold watch. If you find it, call me at 680-7432.
Jim: I found a computer game. My phone number is 512-8843.
Henry: I lost a set of keys. Who found them, please call 476-3539.
Sam: I found a notebook with the name “Kenvin Clark”. My phone number is 555-0287.

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有几位学生遗失了一些物品，请根据以下信息为他们写完寻物启事。
Peter: I lost a gold watch. If you find it, call me at 680-7432.
Jim : I found a computer game. My phone number is 512-8843.
Henry: I lost a set of keys. Who found them, please call 476-3539.
Sam: I found a notebook with the name “Kevin Clark”. My phone number is 555-0287.
Lost & Found

Found: Is this your computer game? Please call Jim. Phone# 91	Lost: 92 My name is Henry Cooper. Please call me at 476-3539.
Lost: A gold watch. My name is 93 . My phone number is 680-7432.	Kevin: Is this your 94 ? Please call me at 95 . Sam.

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1有几位学生遗失了一些物品，请根据以下信息为他们写完寻物启事。

Peter: I lost a gold watch. If you find it, call me at 680-7432.

Jim : I found a computer game. My phone number is 512-8843.

Henry: I lost a set of keys. Who found them, please call 476-3539.

Sam: I found a notebook with the name “Kevin Clark”. My phone number is 555-0287.

Lost & Found

Found:

Is this your computer game?

Please call Jim.

Phone# 91

Lost:

92

My name is Henry Cooper.

Please call me at 476-3539.

Lost:

A gold watch.

My name is 93 .

My phone number is 680-7432.

Kevin:

Is this your 94 ?

Please call me at 95 .

Sam.

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有几位学生遗失了一些物品，请根据以下信息为他们写完寻物启事。
Peter: I lost a gold watch. If you find it, call me at 680-7432.
Jim : I found a computer game. My phone number is 512-8843.
Henry: I lost a set of keys. Who found them, please call 476-3539.
Sam: I found a notebook with the name “Kevin Clark”. My phone number is 555-0287.
Lost & Found

Found: Is this your computer game? Please call Jim. Phone# 91	Lost: 92 My name is Henry Cooper. Please call me at 476-3539.
Lost: A gold watch. My name is 93 . My phone number is 680-7432.	Kevin: Is this your 94 ? Please call me at 95 . Sam.

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