Module4 Sandstorms in Asia 分析资料Introduction1.It lasted for ten hours and was very frightening.它（这场沙尘暴）持续了十个小时，令人特别恐惧。（1）last vi. 继续；持续；维持。例如：Our summer holidays last a long time every year.我们的假期每年有很长一段时间。 The hot weather lasted until the end of September.炎热的天气一直持续到九月底。（2）frightening adj. 令人恐惧的， 引起突然惊恐的。例如：a frightening experience一次可怕的经历The news is quite frightening.这消息引起人们的恐惧。2.The wind blew the sand high around the houses，and some cars were almost completely buried by the sand.强劲的风吹得房子周围的沙尘四处飞扬，有些小汽车几乎被沙尘所埋没。blow vt.& vi. 吹，吹动，刮。例如：The winds blow across the sea，pushing little waves into bigger and bigger ones.风吹过海面，把小的波浪推向前进，变成越来越大的波浪。The wind has blown my hat off.风把我的帽子刮走了。blow [C] 打，打击，奇袭，猛攻。例如：give sb. a blow on the head 给某人头上一击3.Deserts are also created because people cut down trees and dig up grass.人们肆意砍伐树木和破坏草皮也是导致土壤沙漠化的原因之一。cut down 砍倒；缩减；降价。例如：The apple tree was dead and he cut it down.那棵苹果树枯死了，所以他把它砍掉。We can’t cut down our expenses any more.我们不能再削减费用了。I managed to cut the shopkeeper down to $100 for the watch.我跟店主杀价，终于把这手表降到 100 美元。dig up 掘出；挖出；发掘；捐出。 例如：He has dug up some vegetables.他挖出了一些蔬菜。Can you dig up any money? 你能凑点钱吗？4.If you are in a desert，what is the first sign of a sandstorm?假若你正在沙漠中，沙尘暴要来临的最初迹象是什么？sign [C] 记号，符号，姿势；告示，标语；牌子；迹象；征兆。例如：He made a sign for me to follow him.他向我示意跟着他（走）。 The sign by the road said“No Parking”.路边的牌子上写着“禁止停车”。There are no signs of life about...
