Lessons77新概念英语第二册课后答案详解.doc

Lessons 77新概念英语第二册课后答案详解
　　新概念英语第二册第77课重点词汇学习 Word study
　　B.C.与A.D.
　　B.C.为Before Christ(公元前)的缩写，A.D.表示anno Domini (=in the year of the Lord或 since Christ was born),即"公元"。A.D.用来与B.C.形成对比，出现在正式的史书中，平时一般
　　不用。B.C.位于年代之后，A.D.在英国英语中位于年代之前：
　　The mummy of an Egyptian woman who died in 800 B.C. has just had an operation.死于公元前800年的一位埃及妇女的木乃伊刚刚接受了一次手术。
　　The Romans invaded England in 55 B.C. 公元前55年罗马人入侵了英格兰。
　　George I died in A.D. 1727.　乔治一世死于公元1727年。
　　skin,leather与complexion
　　skin可用于指人体的"皮肤"，也能够指某人是什么颜色的皮肤。用于表示后一种意义时它与complexion(肤色)能够互换：
　　Hard resin covered the skin.　皮肤上覆盖着一层硬硬的树脂。
　　We are wet to the skin.　我们全身湿透了。
　　He has a dark skin/complexion.　他皮肤黝黑。
　　leather指"皮革"：
　　Shoes made of real leather have become very expensive.　真皮做的鞋子现在非常贵。
　　This sofa is made from real leather.　这沙发是真皮的。
　　wax与candle
　　wax指各种"蜡"，为不可数名词;candle指"蜡烛"，为可数名词：
　　Inside every mummy there is a small wax figure.　每个木乃伊体内都有一个蜡制的小塑像。
　　All the figures in this shop are made of wax.　这个店里所有的塑像都是蜡制的。
　　I keep a candle by my bed in case the lights go out suddenly.　我床边总放一枝蜡烛，以防突然停电。
　　新概念英语第二册第77课课后练习答案 Key to written exercises
　　1.关键句型练习答案
　　A What happened： died(1.1); died(1.5); lasted(1.6); proved to be(1.7); covered(1.8); moved(1.8); sent (1.9); found(1.9); did not show(1.9); was normally placed (1.10); died (1.11); feared(1.11); cut(1.12); survived (1.12)
　　What has happened： has just had(11.1-2); have not yet decided(1.10)
　　What has been happening： have been trying(1.4)
　　1 for 2 ago 3 since
　　4 since 5 for 6 ago…since
　　7 since 8 ago 9 since
　　10 for
　　2.难点练习答案
　　1 complexion 2 leather 3 skin 4 candle 5 B.C.
　　3.多项选择题答案
　　1a 2c 3a 4b 5c 6d
　　7d 8d 9a 10a 11b 12a