他们说，水温这样低的湖泊不可能生存有体形如此巨大的动物。

　　likely adj. 可能的，可信的

　　sb./sth.is (un)likely to do sth. (不)可能......

　　It is (un)likely that... (不)可能......

　　①It is unlikely that it will rain tomorrow.

　　明天不太可能下雨。

　　②She is unlikely to make(make)the same mistake again.

　　她不太可能再犯同样的错误。

　　③You are likely to suffer(suffer)from bad health if you keep smoking.

　　＝It is likely that you will suffer from bad health if you keep smoking.

　　如果继续吸烟，你的身体健康会受到损害。

　　 cover vt.覆盖；读完；占地；走过(路程)；报道；包含；够支付；涉及 n．(书的)封面；盖子

　　(教材P52)It is 2，189 metres high and covers an area of about ten square kilometres.

　　它海拔2，189米，占地约10平方公里。

　　　写出下列句中cover的含义

　　①The best reporters were sent to cover the war.

　　②He laughed to cover his nervousness.

　　③The review covered everything we learned last term.

　　④When you cover most pages of the novel，you will have a better understanding of the author's life.

　　⑤Is the money enough to cover the tuition fees？

　　⑥The city covers 1，000 square miles.

　　⑦By sunset we had covered fifty miles.

　　【答案】　①报道　②掩饰　③包括　④看完　⑤足以支付　⑥占地(多大面积)　⑦行走(一段路程)