●问：Disease can be as harmful, if not more so, to the well-being and progress of a nation than wars or economic depression。这句话如何理解？ ☆答：这句话把as harmful than混在一起了。它想说的是Disease can be as harmful as wars or economic depression, if not more so.疾病可能造成和战争与经济危机同样的危害，即使不是更大的 危害。

●问：The mummy is that of Shepenmut who was once a singer in the Temple of Thebes. ☆答；that代表the mummy。英语that的这个用法，使得在同一句中不必重复mummy这个单词，而英语行文有时是这样避免重复的。
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●问：在下面这句话里，斜体的that指的是什么？
Only first she had to get towels and soap for father and clean things for him to put on ,because he always gets so messed up with fishing ,and that kept mother busy for a while, that and helping the girls get ready.
☆答：指she had to get towels and soap for father and clean things for him to put on,全句的含义是说：作者的父亲钓鱼经常会把浑身弄得很脏，母亲先得忙着把毛巾，肥皂和父亲的换洗衣服找出来，除此之外，还要帮女儿打扮，为这两桩事她忙了一阵。
说话的人说到that kept mother busy for a while之后 ,又想起helping the girls get ready ,也占了她的时间，所以重复了that，再加上helping the girls ready,这种文体是口语式的。正式的书面语不会这样写。

●问：下面这个句子里，第二句里的it is today在句子里是什么成分？句子是什么意思
The degree of an industry is based upon the ability of that industry to move forward through continual advances and developments in new technology. The porcelainenamel industry is a good example of such a success story where innovations in technology have controlled its progress and brought it to the viable business it is today.
☆答： it is today在句子里是定语从句，省略了关系代词that，先行词是 the viable business。全句含义是说：搪瓷业的成功，正是由于工艺技术的革新掌握了这一工业的进展，使它成为今天这样一个具有生命的企业。
生词表: