Some people believe that teachers should communicate with students in class. Others believe that teachers should communicate with students by sending them emails. Which way do you think in better and why？
Professional athletes and celebrities to enter politics is a good idea？
Should government spend money on public park for everyone or build a sport field for students？
Do you agree or disagree with the following statement？ If people are on vocation (holiday), they should leave their mobile phones at home.
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Artificial reefs have several benefits.
1、人工珊瑚礁給魚類更多聚集和繁殖的空間，魚類數(shù)量可以得到增加。
Many fishers believe that by giving fish more places to gather and reproduce, artificial reefs have increased the populations of some species of fish
2、人工珊瑚礁可以改進小漁民的競爭力。
Artificial reefs can also improve the economic competitiveness of small-scale fishers. This is possible because small-scale fishers are able to create their own private artificial reefs in secret locations only they know.
3、人工珊瑚礁可以用于回收無用的materials。
Finally, artificial reefs are a good way to recycle materials no longer needed for other purposes.
聽力
1、魚的overall population不一定就grow larger了。只是因為reef吸引魚，所以魚都跑reef那去了?？傮w的population都跑那去了。decrease了。
2、不應該讓私人搞小reef。不然有safety problem：其他漁夫不知道的，下網(wǎng)了以后就會死菜。在shallow waters,小船還會整個崩掉cracks。
3、會cause environmental problems。被風吹了會散開，然后把很多marine plants和animal搞死了。
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