weapon)

　　_______________________________________________________

　　答案　Education is a powerful weapon we can use to fight Aids.

　　2. 艾滋病是一种致命疾病。(a deadly disease)

　　_______________________________________________________

　　答案　Aids is a deadly disease.

　　3. 艾滋病病人不应该另外遭受歧视的痛苦。(additional pain)

　　_______________________________________________________

　　答案　Aids patients shouldn't suffer the additional pain caused by discrimination.

　　4. 不要在公共场所吐痰。(in public)

　　_______________________________________________________

　　答案　Don't spit in public.

　　5. 她太老了，已经失去了劳动能力。(lose the ability)

　　_______________________________________________________

　　答案　She is so old that she has lost the ability of labour.

Ⅲ. 单项填空

　　1. It is difficult to judge what words are ________ and what words are not.

　　A. worth to look up

　　B. worth being looked up

C. worth looking up