Unit 2 Topic 1 I. 重点词组 1. chemical factory 化工厂 2. pour… into… 把……排放到…… 3. in a bad mood 处在不好的情绪中 4. manage to do sth. 设法去做某事 5. do harm to … / be harmful to… 对……有害 6. quite a few 相当多 7. no better than 同…….一样差 8. in pubic 公开地 9. all sorts of 各种各样的 10.in many ways 在许多方面 II. 重点句型 1. Look, there are several chemical factories pouring waste water into the streams. 看, 有几家化工厂正往河里排放废水. 2. Everything has changed.一切已发生了变化. 3. How long have you been like this? 你像这样多长时间了? 4. I’m always in a bad mood because I can’t stand the environment here. 我的情绪总是很差因为我受不了这里的环境. 5. However, not all people know that noise is also a kind of pollution and is harmful to humans’ health. 然而,并非所有的人都知道噪音也是一种污染, 而且有害于人类健康. III. 语法 直接引语和间接引语 1. Granny said, “I’m feeling even worse.” Granny said that she was feeling even worse. 2. “ Do you still want to live here, Granny?” the journalist asked. The journalist asked Granny if she still wanted to live there. 3. “ How is the environment around this place?” the journalist asked. The journalist asked how the environment around that place was. Topic 2 I. 重点词组 1. as a result 结果 2. here and there 到处 3. in the beginning 一开始 4. in danger 处于危险中 5. cut down 砍倒 6. change sth. into sth. 把……变成…… 7. prevent from 防止 8. greenhouse effect 温室效应 9. refer to 提到 10.deal with 处理 11.take up 占据 12.cut off 中断 II. 重点句型 1. As we know, none of us likes pollution.众所周知,没有人喜欢污染。 2. Humans have come to realize the important of protecting animals.人类逐渐意识到保护动物的重要性。 3. Trees can also stop the wind blowing the earth away.树木也能防风固土。 4. Cutting down trees is harmful to human beings, animals and plants.砍伐树木对人类、动植物都有害。 5. Some things we’ve done are very good for earth while some are not good. 我们所做的, 有些对地球很好,而有些不利。 6. They can also prevent the water from washing the earth away.它们也能阻止水土流失。 7. When it rains or when the wind blows, the earth is taken away.天一下雨或刮风, 土就会被冲走或刮走。 III. 语法 不定代词: 1. 定义: 指的是那些不指明代替任何特定名词或形容词的代词。 2. 用法: 在句中可作主语、宾语、表语、定语等。something , somebody, anything, anybody等作主语时，通常视为单数。当形容词修饰它们时，要放在其后。 e.g. But the government has done something useful to protect the environment. Topic 3 I. 重点词组 1. not only…but also… 不仅……而且…… 2. be supposed to 应该 3. ought to 应该 4. turn off 关掉 5. instead of 代替 6. on time 准时 7. make sure 确保 8. push forward向前推 9. push down 向下 10.pull up 向上拉 II. 重点句型 1. For example, we should use both sides of paper and reuse plastic bags. 例如,我们应该用纸的两面,并且重新使用塑料袋。 2. Everyone is supposed to do that.每个人都有义务那样做. 3. First, you ought to turn off the lights when you leave a room.首先, 你离开房间时应该随手关灯。 4. Easier said than done. 说起来容易做起来难。 5. Well, actions speak louder than words.嗯, 百说不如一做。 6. There will be a lot of hard work to do tomorrow, so make sure you go to bed early tonight. 明天有许多繁重的活要干,今晚一定要早睡。 III. 语法 并列句：由两个或两个以上并列而又相互独立的简单句构成。 结构为：简单句+并列连词+简单句 常用的并列连词有：and, or, but, while, not only… but also e.g. 1. The river is dirty and the temperature of the earth is rising. 2. They work well, but they are slow and can’t run for long.