36. Words _____ meaning, as we all know.
　A. convince　　B. convey　　C. contribute　　D. conquer
答案：B。convey：表达，传递。Please convey my best wishes to your parents.请向您的父母转达我最美好的祝福。本句的意思是“众所周知，语言表达思想。”只有B最合适。Convince：使确信；contribute：做贡献；conquer：征服。

37. I don't like to disturb you, because you're quite tired _____ working hard today.
　A. of　　B. with　　C. out　　D. on 
答案：B。be tired of 的意思是：对…感到厌倦，不符合题意。C和D的意思也不正确。只有B，在这里表示原因。如：lose one’s voice with shouting叫的声音嘶哑。

38. _____ I saw was two men crossing the street.
　A. What　　B. Whom　　C. Who　　D. That 
答案：A。本句是主语从句，what在从句中做主语。

39. A curve is a line _____ no part is straight and which has no angle.
　A. that　　B. whose　　C. in which　　D. of which 
答案：D。介词+关系代词可引导定语从句。因为是短语“no part of which”因此用of which, 而不用in which。Whose 和that在此都不符合语法结构。又如：This is the dictionary of which I bought yesterday.这是我昨天买的那本字典。

40. _____ I'm mistaken, I've seen that man before.
　A. Unless　　B. If　　C. Because　　D. Provided 
答案：A。unless：若不，除非。You will fail unless you work harder.你若不更加努力就会失败。I won’t phone you, unless something unforeseen happens.我不打电话给你，除非发生意外。本句话的意思是“如果我没有弄错的话，我以前见过他。”因此A 最符合题意。provided 及providing “只要，以…为条件”后接that从句中的that 可以省略，一般都可以由if 来代替。We shall go provided （that） the weather is fine .要是天晴，我们就去。Provided （that） no objection is raised, we shall hold the meeting here.如果没有人反对的话,我们就在这开会。because：因为

41. The fisherman, _____ poor, could not buy another boat.
　A. is      B. was　　C. being      D. been 
答案：C。分词短语作原因状语。本句的意思是“因为穷，这个渔夫买不起另一条船。”Being so angry, he couldn’t t go to sleep.因为太生气了，他不能入睡。

42. All man must die, but death can vary _____ its significance.
　A. with      B. in　　C. from D. on
答案：B。用介词in表示在…方面。本句的意思是：“所有的人都会死的，但是意义却不同。”所以B是正确答案。又如：People vary very much in their ideas.人们在观点上存在着很大的差别。vary with：变化，差异。Her mood varies with the weather.他的情绪随天气的变化而变化。demand varies with the season.需求随季节而变化。C和D均不符合题意。

43. Three people, _____ ,were injured in the accident.
　A. including a child B. include a child　　C. included a child D. includes a child 
答案：A。include的现在分词或过去分词常可以引起一个短语，在句子中起解释作用。此短语可放在句末，用逗号与其他句子成分分开。Ten people were killed in the crash, including the pilot.十人在飞机失事中遇难，其中包括飞行员。因此A是正确答案。

44. We use plastics _____ wood and metal now.
　A. to take place  B. to take of　　C. take the place of D. in place of