Unit3 Lesson1-【新教材】2021-2022学年高中英语北师大版(2019)选择性必修第一册讲义（教师版+学生版）

选择性必修一Unit3 Lesson1 1．unusual adj．异常的；不平常的→usual adj．寻常的，惯常的→usually adv．通常地，一般地→unusually adj．不寻常的；独特的 2．varied adj.各种各样的，形形色色的→vary v．变化→various adj.各种各样的→ variety n．种类 3．affect vt．影响→effect n．影响→effective adj．有效的；全效的→effectively adv．有效地 4．endangered adj．濒危的→endanger v．使面临危险；危及；危害→danger n．危险→dangerous adj．危险的 5．restore vt.(使)恢复→restoration n．恢复；复原 重点单词与短语精析 ★课标词 ▲高频词 [高频短语]1.die out 灭绝，消失 【用法归纳】 ▶This species has nearly died out because its habitat is being destroyed. 因栖息地正受到破坏，这一物种已濒临灭绝。 ▶That style of music died out hundreds of years ago. 那种风格的音乐几百年前就消失了。 【拓展】 die 构成的其他短语： die off 相继死去 die from/of 死于 be dying for sth. 渴望某物，极想要某物 be dying to do sth.渴望做某事 die down (to become gradually less strong, loud, noticeable, etc. )逐渐变弱，逐渐平息 die away (to become gradually weaker or fainter and finally disappear)逐渐减弱，逐渐消失 ▶When the applause had died down, she began her speech. 掌声平息后她便开始演讲了。 ▶The sound of his footsteps died away. 他的脚步声渐渐消失了。 【练习】用 die 的相关短语完成句子 ①With more and more birds dying off , some day some species will die out . In addition, some of them have died from/of environmental pollution. ②Don’t worry. The strong wind will die down/away soon and we can go out to have a baseball match as planned. ③Now I’m thirsty and dying for a glass of water. I have walked for a long time. ▲★2.mass 【用法归纳】 (1)adj. 大批的，数量极多的，广泛的。仅用于名词前。 mass production 批量生产 ▶Their latest product is aimed at the mass market.他们的最新产品瞄准了大众市场。 (2)n. [C]堆，团，块；[C,usually sing.]大量，许多；[pl.]大量的东西 a mass of 一堆……；大量的…… mass of 成堆的……；大量的…… a land mass 陆块，地块 ▶A mass of books and papers are on his desk.在他书桌上有一堆书和文件。 ▶Wherever the band went, masses of fans would welcome them at the airport. 无论这支乐队去哪儿，都会有大量的歌迷在机场欢迎他们。 【注意】a mass of/masses of 后可跟可数名词复数或不可数名词，当“a mass of/masses of＋名词”作主语时，其谓语动词的形式以of 后名词所表达的意义而定。 ▶Masses of customers are entering the supermarket.大批顾客正进入超市