UNIT5 Section Ⅱ　Using language——it作形式宾语 　 -【正禾一本通】2023-2024学年新教材高二英语选择性必修第二册同步课堂高效讲义教师用书（外研版2019）

　导学第一步——研一研·探究教材要点 1．be native to (动植物)是……地方特有的；原产于；出生于(to是介词) (1)native adj.　 出生地的；儿时居住地的 one’s native land/country/language 某人的故乡/祖国/母语 (2)native n. 出生于某国(某地)的人；本地的动物(或植物) a native of ……本地人；产于……的动物/植物 be home to 是……的所在地/出产地 [佳句诵读]①This kind of plant is native to America and was introduced into China in the Ming Dynasty. 这种植物原产于美洲，于明朝传入中国。 ②It was his first visit to his native country since 1948. 这是自1948年以来他首次回到自己的祖国。 [即学即练]单句语法填空/完成句子 ①India，which is home to about 80 percent of the world’s tigers，has more than 2，000 tigers in the wild today. ②By studying the bones, scientists further concluded that the Waitaha penguin was once a native of New Zealand. ③中国是我们的祖国，汉语是我们的母语。 China is our native country, and Chinese is our native language． 2．break down (使)分解；(机器或车辆)出故障；(身体)垮掉 break up 　　 　 破裂；结束；解散 break into 强行闯入；突然……起来 break in 闯入；打断，插嘴 break away (from) 脱离；逃脱 break through 取得突破 break out (战争、火灾等)突然发生，爆发 [佳句诵读]①Our car broke down and we had to push it to the roadside. 我们的汽车抛锚了，我们只好把它推到路旁。 ②His health broke down under the pressure of work. 他因工作压力身体垮掉了。 [即学即练]单句语法填空/完成句子 ①A fire broke out on Sunday afternoon at the scene of the explosion. ②Scientists think they are beginning to break through in the fight against cancer. ③塑料袋对环境的危害有几个方面。首先，它们分解成颗粒，污染我们的土壤和水。 Plastic bags harm the environment in several ways.First，they break down into particles that pollute our soil and water.[环境保护] 　导学第二步——学一学·突破语法考点 【教材原句感悟】 ①No visitor would think it surprising that the island is a UNESCO World Heritage Site. ②Experts felt it necessary to come up with a plan to remove all the rabbits from the island. ③This incident made it clear that the rat，mouse and rabbit problem needed solving once and for all. ④This intervention is a long，much­delayed ending to a sad story，but we humans owe it to the island to give it a happy ending. [考点领悟] 以上句子中，句①和句③中it充当形式宾语，真正的宾语是that从句；句②和句④中it充当形式宾语，代替后面的动词不定式。 【语法知识讲练】 1．it代表不定式短语 ①They found it pleasant to work w