【学霸笔记：同步精讲】24 UNIT 3 Section Ⅰ Period 3 课时学案 语言知识讲练 课件--北师大版英语选择性必修第一册

(课件网) 复习任务群一 现代文阅读Ⅰ 把握共性之“新”　打通应考之“脉” UNIT 3　CONSERVATION 主题语境 人与自然———人类生存、社会发展与环境的关系 Period 3　课时学案 语言知识讲练 Section Ⅰ　TOPIC TALK & LESSON 1 1．switch vi．& vt．转换，改变 The remote control allows you to switch easily between TV channels． 遥控器让你在不同电视频道之间轻松地转换。 [知识拓展] switch off 　　　　 切断(电源等) switch on 打开(开关)；接通(电源等) switch (from…) to… (从……)转变成……，(从……)转换 到…… switch sth．with sb． 和某人交换某物 switch over 转换；转接 [即学即练]　单句语法填空 ①Switch ___ the TV before you go out． ②She switched __ the lamp because it was dark． ③We asked them if they would switch places ____ us． off on with 2．urgent adj．紧急的，急迫的 He asked to see the manager for something urgent． 他有急事求见经理。 [知识拓展] (1)urge v．　　　　 催促；敦促；力劝；强烈要求 urge sb．to do sth．/into doing sth． 敦促某人做某事 urge that sb．(should) do sth． 敦促某人做某事 urge sth．on sb． 向某人提出/力陈某事 (2)urgency n． 紧迫；急迫；紧急的事 [即学即练]　单句语法填空 ①The report urged that all children _____ (teach) to swim． ②He denounces people who urge him _____(change) his ways． ③I need not press on you the _____(urgent) of the matter． (should) be taught to change urgency [知识拓展] die away 　　　 逐渐减弱，逐渐模糊，逐渐消失 die down 逐渐降低，逐渐平息 die off 相继死去 die of 死于(内因) die from 死于(外因) 3．die out 消失；绝迹，灭绝 As a result these endangered animals may even die out． 结果，这些濒危动物甚至会灭绝。 [即学即练]　单句语法填空 ①As the region is becoming hotter，this kind of grass is dying ___． ②Their chatter and laughter died _____ as the group rushed out of the classroom． ③When all the guests had left，the whole house died _____． ④We need to take action before all the endangered animals die ___． off away down out [知识拓展] wipe away　　　　　　 擦去，消除 wipe off 擦掉，除掉 wipe up 擦净 wipe sth．from/off sth． 从……上擦去…… wipe…with… 用……擦…… 4．wipe out 彻底毁灭 The plague once could wipe out a village． 鼠疫曾一度可以夺走整个村庄村民的生命。 [即学即练]　单句语法填空 ①When you've finished with it，simply wipe it clean ____ a damp cloth． ②He wiped the marks _____ the wall． with off/from 5．varied adj．各种各样的，形形色色的 It is essential that your diet is varied and balanced． 关键是你的饮食要多样化，并保持均衡。 [知识拓展] (1)various adj．　　　　　　　各种各样的 for various reasons 因种种理由 (2)variety n． 变化；品种；种类；多样化 a variety of/varieties of 多种多样的 (3)vary v． 变化；不同 vary with… 随……而变化 vary from…to… 从……到……变化不等 [即学即练]　单句语法填空 ①They were late for the meeting for a _____ (vary) of reasons． ②There are _____(vary) plants and flowers in the park． ③The weather here _____(vary) with seasons． variety various/varied varies 6．decrease n．减少；减少的量vi．& vt．减少 If their habitat ... ...