7新人教必修1unit4.pptVIP

5. A huge crack that was eight kilometres long and thirty metres wide cut across houses, roads and canals.(P26) 一条8公里长、30米宽的巨大裂缝横穿房舍、马路和渠道。 ▲cut across 穿过，抄近路穿过 【即学即练】 完成句子 我回家常抄近路，从公园里走。 I usually the park on my way home. 答案：cut across 【联想拓展】 cut away切除；剪掉 cut down 砍到；消减 cut in 插嘴；打断 cut off 隔绝；中断；阻碍 cut out 剪裁；删掉 cut up 切碎，使难过 6. In fifteen terrible seconds a large city lay in ruins. (P26) 在可怕的15秒钟内，一座大城市就沉沦在一片废墟之中。 ▲ ruin vt. 毁坏;毁灭。既可指实际的东西，也可指抽象的东西;n.［U］毁坏;毁灭;n.［C］(常用作复数)废墟; in ruins 严重损坏;破败不堪 【即学即练】 翻译句子 ①Laziness will ruin one’s prospects. ②This storm meant the ruin of the corns. ③We wanted to have a look at the ruins of Pompeii. ④一场强烈地震使汶川县城变为一片废墟。 ⑤该岛毁在旅游业上了。 The island has been by tourism. 答案：①懒惰会使人自毁前程。 ②这场暴风雨意味着庄稼的毁坏。 ③我们想看一下庞贝城的废墟。 ④A strong earthquake left Wenchuan County in ruins. ⑤ruined 7. Twothirds of them died or were injured during the earthquake.(P26)他们当中三分之二的人在地震中死去或受伤。 All of the city’s hospitals，75% of its factories and buildings and 90% of its homes were gone.(P26) 这个城市中所有的医院，75%的工厂和建筑物，90%的家园都消失了。 【联想拓展】 分数与百分数的构成及用法 ①不同点：分数是由分子和分母构成的，分子用基数词，分母用序数词，当分子大于1时分母用复数形式，中间的连字符可有可无。如：1/3， one third； 3/5， three fifths； 注意:1/2， one second或a/one half；1/4， one fourth或a/one quarter。 百分数是由基数词和百分号或percent构成的。percent无复数形式，如：80%,eighty percent; 2%,two percent。 ②相同点：“分数或百分数+of+名词或代词”作主语时，谓语动词的单复数形式根据其后名词或代词的单复数而定，其后若无名词或代词则根据上文所表示的含义而定。 注意:后边为population时，动词用复数形式。 【即学即练】 完成句子 ①我们班三分之二的学生是男生。 Two thirds of the students in our class boys. ②那座山的六分之五被雪覆盖着。 Five sixths of the mountain covered with snow. ③那个国家80%的人口是农民。 80% of the population in that country farmers. 答案：①are②is③are 8. The number of people who were killed or injured reached more than 400, 000. (P26) 死伤的人数达到40多万。 ▲reach n.v. 抵达;传到; vt.达成（协议）;得出（结论） 伸手够到（某物）;vi.伸手去拿（某物），后接介词for。 【即学即练】 翻译句子 ①他昨晚8点到家。 ②They finally reached a conclusion. ③He is reaching for the book on the shelf, but can’t reach it. 答案：①He reached home at eig