Unit22 Environmentac(8)

Unit22 Environmental Protection (8)Reviewing LessonTips：You’ll get what you want with an aim in your mind.Reviewing Aims:1. lmportant words and phrases.2. lmportant sentences .3. Grammar of this unit .4. Comprehension Exercise.Reviewing lmportant points:1. lmportant words and phrases.2. lmportant sentenes.Reviewing Difficult Points:1. Grammar of this unit.2. Comprehension Exercise.Learning Procedure:StepI:Words﹝A﹞1.危害＿＿_ 2.超出＿＿ 3.威胁＿＿4.代表＿＿ 5.实施＿＿ 6.武装＿＿7.建造＿＿ 8.采用＿＿ 9.成熟的＿＿StepII Phrases ﹝B﹞1.____one’s control 超出…的控制 2.look____展望未来 3.call_____要求；需要 4.be harmful____对…有伤害 5.______risk 在冒险 6.speed_____加速 7.refer_____提及,谈到 8._______turn 转而，轮流19.slow_______ 减 缓 10.______action 采 取 行 动 11.______all 毕 竟 12.switch______关闭 13.rely______依靠 14._______animals 濒临动物15.greenhouse_______温室效应 16.ahead______在…前面17.apart_______处…以外 18._______fou…对…负责19.call______an end______sth.要求结束…20.________else 否则，不然 21.wrap_______结束22.________sd’s behalf 代表某人 23.________good 永远24.carry_______夺走 25.all_________all 总的来说26._________danger_______extinction 濒临灭绝27.in_______另外，加之 28.be home________…是…的原产地29.result_______导致 30.earn one’s________谋生 31.wipe________抹掉， 32.________from 从…中康复 33.get_____克服﹝困难﹞；﹝从病中﹞恢复34.turn________sb.袭击某 35.within the _________of…范围内36.__________adnnce 预先，提前 37.at_______times 随时38._______risk 处于危险中，冒险 39.________some degree 在某种程度上40.be_________with sth.用……来武装StepIII Sentences﹝B﹞1.________,scientists believe that global warming could be one of the biggest environmental problems ________the 21st century.2.________these naturally occurring gases, the sun’s rays would bounce back into space________the Earth cold and imposs...