补充精讲
2课文讲解
- 1．plenty of, 充足的，足够的。
- 后面可跟可数名词或不可数名词。
- There is plenty of coal in this area. 这个地区有丰富的煤。
- There are plenty of good places to camp in. 有许多好地方可以露营。
- We believe in taking in plenty of fresh air and getting plenty of exercise.
我们主张呼吸新鲜空气和参加足够的锻炼。
- Keep warm, drink plenty of hot water and get plenty of rest.
穿暧和些，多喝热水，多休息。
- 2．ten minutes slow, 慢 10分钟； ten minutes fast, 快 10分钟。
- 3．When's the next train?下一班车是什么时候？
- 这个句子是用来询问火车启程时间时常见的句型。
关键句型
- had better与 must
- had better表示“最好还是”、“最好”，表达某种忠告或建议。 句型：had better do sth.
- must则表示“必须”、“一定”，语气比 had better强烈。
- had better表示现在时或将来时，而不是过去时。 其否定形式为 had better not do sth.
- We had better wait and watch for a better chance.
我们最好等一等，寻找更好的机会。
- When it rains, you had better not go out.
天下雨的时候，你最好别出去。
- You had better be overhauled by a doctor.
你最好给医生详细检查一下。
- You had better do a little hard thinking.
你最好仔细想一下。
- If you can't finish the book by then, you must come and renew it.
这本书如果你到时候还看不完, 就必须来续借。