人教版九年级Unit6SectionA4a-4c课件VIP免费

Unit 9When was it invented?Period 5 Section A 4a-4cReview When was … invented ?It was invented in…What is it used for ?It is used for…最糟糕的发明 “ 二十世纪最糟糕的发明是什么 ? ” 就是人们每天大量使用的塑料袋。 诞生于上个世纪三十年代的塑料袋，其家族包括用塑料制成的快餐饭盒、包装纸、餐用杯盘、饮料瓶、酸奶杯、雪糕杯等等。这些废弃物形成的垃圾，数量多、体积大、重量轻、不降解，给治理工作带来很多技术难题和社会问题。 比如，散落在田间、路边及草丛中的塑料餐盒，一旦被牲畜吞食，就会危及健康甚至导致死亡。填埋废弃塑料袋、塑料餐盒的土地，不能生长庄稼和树木，造成土地板结，而焚烧处理这些塑料垃圾，则会释放出多种化学有毒气体，其中一种称为二噁英的化合物，毒性极大。fridge /frid / n. ʒ冰箱I think a fridge is the most useful invention in modern world. translate /trænsleit/ v. 翻译She is translating the words intoEnglish.She is a good translator.lock /l k/, /la:k/ ɔv. 锁上；锁住He is locking the car.These locks are strong.earthquake / ə:(r)θkweik/n. 地震Don’t be afraid of the earthquake.biscuit /biskit/ n. 饼干Don’t eat too much biscuit, it isn’t good for your health.cookie/kuki/ n. 曲奇饼干Don’t eat so much cookie, because it is too sweet.instrument /instrumənt/ n. 器械； 仪器；工具There are many kinds of instruments in our school.New wordsfridge /frid / ʒn. 冰箱translate /trænsleit/ v. 翻译lock /l k/, /la:k/ ɔv. 锁上；锁住 earthquake / ə:(r)θkweik/n. 地震sudden /s dən/ ʌadj. 突然（的）all of a sudden 突然 ; 猛地 biscuit /biskit/ n. 饼干 cookie/kuki/ n. 曲奇饼干 instrument /instrumənt/ n. 器械； 仪器；工具根据汉语提示完成单词。 1. The boy lost his parents during the last year’s ( 地震 ).2. The students were asked to ( 翻译 ) the story into English.3. The police found the lost boy under the destroyed house...