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1、必修二Unit 4,Words&expression,Expressions:,decreasein decreaseto decreaseby,在方面减少减少到减少了,我们班人数减少到55/减少了2人。,The number of students in our class decreased to 55/by 2.,2.die out(家族、物种、习惯风俗、火)灭绝 die off(家族、物种)相继灭亡，(草木)先后枯死 die of 因而死(情感、疾病、寒冷、饥饿等内因)die from 因而死(刀伤、枪伤等外因),Many old customs are gradually dying
2、 out.The leaves of the tree are dying off.,3.in danger,处于危险中,The man is in danger.,4.in relief,如释重负,We were in relief when he was out of danger.,5.have mercy on 对表示怜悯 show mercy to sb.同情某人 without mercy 残忍地,in danger of,处于的危险中,The man is in danger of losing his sight(失明).,7.pay attention to,注意,Pay a
3、ttention to your attitude!,8.burst into laughter,突然笑起来,She burst in to laughter when she heard the joke.,6.protectfrom 保持不受(伤害),He wore sunglasses to protect his eyes from the sunlight.,Please arrange the books according to size.,根据,11.so that,He got up late so that he was late for school.,10.according to,以至于，结果,e into being,产生、形成,Do you know when the new government came into being?,请按大小将书分类。,他起床晚以至于上学迟到。,
