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Unit 4 Our World Topic 2 How can we protect ourselves from the earthquake? Section A Learning aims: I、New words and expressions:earthquake, province, missing,strike. fall down, another two, lose one’s life... II、Study the rules of comparative and superlative degrees of Adjectives. III、Learn some sentence structures about what happened in an earthquake. Review 单音节及部分双音节形容词比较级(-er)和最高级(-est)的规则变化。 1.一般情况下在词尾直接加er或est eg. tall—taller—tallest 2.以字母e结尾的单词先去e再加er或est eg. wide—wider—widest 3.以重读闭音节结尾,且末尾只有一个辅音字母的单词,先双写该辅音字母,再加er或est eg. big—bigger—biggest 4.以辅音字母+y结尾的单词,先改y为i,再加er或est eg. busy—busier—busiest 5.部分双音节词和多音节词在前面加more或most构成比较级和最高级。 eg. beautiful—more beautiful—most beautiful serious—more serious—most serious interesting—more interesting—most interesting 不规则变化: good/well—better—best bad/ill—worse—worst many/much—more—most little—less—least farther—farthest 一般表示有形距离。 far further—furthest 侧重于抽象的距离概念,如“留学深造”; 感情、思想等的深远。 Useful phrases 1.从......摔下来 fall down from...=fall off... 2.很抱歉听说此事。 I’m very sorry to hear that. 3.另外两次大地震 another two terrible earthquakes=two more... 4.超过 more than = over 5.某人失去性命 lose one’s life = die 6.多么恐怖啊! How terrible! 7.保护......以免....... protect sb./oneself from sth. 8.让某人做某事 let sb. do sth. 9.向某人求助 ask sb. for help 10.做某事的一种方式 a way to do sth.= a way of doing 11........的数量 the number of... Language points 一. I know there were another two terrible earthquakes in China. 我知道在中国曾有另外两次大地震。 考点: (1)I know之后省去了 that, there were another two terrible earthquakes in China是that引导的宾语从句。 eg. I know (that) you are a good student. 我知道你是个好学生。 (2)another two terrible earthquakes = two more terrible earthquakes 另外两次大地震。 another表示三者或三者以上不确定范围内的另一个。 eg. Bring me another glass of water. 给我再拿一杯水来。 本句中的“another+数词”,表示“又几个,再几个”,在原有的数量上叠加,相当于“数词+more”。 eg. another cake = one more cake 另外一个蛋糕; another three cakes = three more cakes 另外三个蛋糕。 及时练习: 1. I'd like to try on another skirt. (改为同义句) I'd like to try on _ skirt. 2. I need to borrow two more books. (改为同义句) I