Unit 9Communication Workshop重难点知识讲解及基础练习-2023-2024学年九年级英语北师大版全一册

Communication Workshop 重难点知识讲解 1. They are careful to save gas when they cook. 他们做饭的时候很小心地节约煤气。 【解析】 be careful to do sth. 表示“小心地做某事”。例如： He was careful to answer the questions which were asked by the reporter. 他小心翼翼地回答了记者提出的问题。 be careful about 表示“小心，当心”。例如： We need to be careful about how we use antibiotics. 我们需要小心使用抗生素。 2. By 2007, it was only 10% of its original size and had split into three separate lakes. 到 2007 年，它只有最初的十分之一的大小，并且分为三个独立的湖泊。 【解析】“by+年份”，表示“到那一年”。例如： 55% of the forest could be gone by 2030. 到2030年，有55%的森林可能会消失。 基础练习 一、翻译下列短语。 1. 为了，目的是，以便于________________________________________________ 2.例如_______________________________________________________________ 3.节约用水___________________________________________________________ 4. 参与______________________________________________________________ 5. 起大作用__________________________________________________________ 6.从此_______________________________________________________________ 7.一路_______________________________________________________________ 8.有深远的影响_______________________________________________________ 9.放弃_______________________________________________________________ 二、用方框中所给词的适当形式填空。 produce prevent save help build increase become 1. A dam(大坝）has been _____ to try to restore higher water level in the North. 2. The forests _____ a lot of oxygen （氧气）and also _____ to cool the weather. 3. The Green Wall Project is to _____ forests in northern China. 4. Without trees the grassland near the Gobi will ________ desert. 5. In order to ________ energy, we turn off lights during the day or when they are not being used. 6. My dad drives to work and he is careful to save gas to ________ pollution. 三、根据中文提示完成句子。（每空一词） 1.我们把旧衣服和家具捐给慈善组织。 We _____ old clothes and furniture _____ charities. 2．让我们大家共同努力，把我们的地球变得更美好。 _____ _____ together to _____ our earth better to live on. 3. 森林对全世界的人都很重要。 Forest _____ _____ _____ people all over the world. 4. 在20世纪 60年代以前咸海是世界上最大的湖泊之一。 The Aral Sea was _____ _____ _____ __