(
课件网) Unit 3 Trees and us Writing (基础巩固) 一、写作基础词汇测试。 1. 写出树木各部位的词汇：(10个) e.g.， sapling， 2. 写出描述树木作用的词汇：(10个) e.g.，clean air， root， trunk， branch， leaf， flower， fruit， bark， twig， seed， sap， bud produce oxygen， take in CO2， prevent soil erosion， provide shelter， offer food， cool the air， reduce pollution， supply wood， support life， reduce noise 二、写作短语翻译。 1. 吸收二氧化碳 2. 产生氧气 3. 由木头制成 4. 减少污染 5. 重复使用纸张 6. 种植树苗 7. 砍伐树木 8. 保护树木 take in carbon dioxide produce oxygen be made of wood reduce pollution reuse paper plant saplings cut down trees protect trees 三、写作句子翻译。 1. 植物在白天吸收二氧化碳并释放氧气。(take in) 2. 许多桌椅是由木头制成的。(be made of) 3. 我们可以骑自行车代替开车来减少污染。(reduce pollution) Plants take in carbon dioxide during the day and give out oxygen. Many chairs and tables are made of wood. We can reduce pollution by riding bikes instead of driving cars. 4. 重复利用纸是减少浪费的好方法。(reuse paper) 5. 我们必须停止砍伐树木来保护动物的家园。(cut down trees) Reusing paper is a good way to reduce waste. We must stop cutting down trees to save animals’ homes.(
课件网) Unit 3 Trees and us Grammar (能力提升) 一、语法选择。 A thousand years ago， Hong Kong was covered by a thick forest. As more and more people came to live in Hong Kong， they cut down and burnt these trees. Now there is no forest left 1 there are still some small areas covered with trees. We call 2 woods. ( A )1. A. though B. or C. so D. because ( B )2. A. they B. them C. their D. themselves though them A B 1. A 【解析】“没有森林但有小林区”为转折关系，用 though(虽然)。 2. B 【解析】动词call后接宾格them(它们)，指代 small areas with trees。 Elephants， tigers and many 3 animals lived in the thick forest. Later people came to Hong Kong. They needed fire to keep themselves warm， cook food and keep away dangerous animals， so they kept 4 down trees. ( D )3. A. another B. others C. the other D. other other cutting D ( A )4. A. cutting B. cuts C. to cutting D. cut A 3. D 【解析】other＋复数名词(other animals)，表示“其他动 物”。 4. A 【解析】固定搭配keep doing sth.(持续做某事)，用 cutting。 Elephants quickly disappeared because there was not enough food for them. Most of the wolves and tigers didn’t have enough food 5 . Monkeys and some other animals also died 6 . the same way. either in ( D )5. A. also B. too C. neither D. either ( A )6. A. in B. out C. of D. from D A 5. D 【解析】句意：大多数狼和老虎也没有足够的食物。根 据上文提及大象很快就因为没有足够的食物消失了可知，此处 指“也”，位于否定句句末，用either。 6. A 【解析】固定搭配in the same way(以同样的方式)。 You7 think that there are no longer any wild animals in Hong Kong except in the zoos. There are still about thirty－six 8 anima ... ...
