4.Which of the following sentences is true?

　A. Ed could eat a different kind of meat every day.

　B. Henry thought he could enjoy a change.

　C. Henry couldn't think of anything else to do, so he went to the farm.

　D. The farmer died because of the bad meat he ate.

3. “…and you are complaining!”, the word “complain” means __________.

　A.夸奖 B.说三道四 C.抱怨 D.故弄玄虚

2. Henry came back home several days later because ______________.

　A. he didn't like the country life at all B. the farmer wasn’t friendly to him

　C. his holiday was over D. he thought he might have to eat the farmer

1.How did Henry find out about the farm?

　A. He saw it in a newspaper advertisement. B. His best friend told him.

　C. He wrote to the farmer. D. Maybe he learned it from the radio.

2.A. 根据“This could hold water. Or it could be empty. So they were able to change its weight.”可知，金属盒里盛的水是并非是饮用水，而是用来改变气球重量的。文中还说他们同时也带了几袋沙子来调节气球的重量。　

1.C。由首句的1908年可知A项有误。另外，这三个人打算从伦敦出发乘气球作长距离旅行，由于天气状况不好，只好在波兰(Poland)着陆。行程达1,797公里，将近1,800公里。

5.B。由上面一段说的意思，再联系下面的几句话，即可得出答案。

　Passage 51

　[答案与解析]这是发生在历史上的一则历险小故事。1908年12月，三个人乘坐气球从伦敦出发，进行了一次长途旅行。为了能有效地控制气球的重量，他们在气球下方挂了一个能盛水的金属盒子，还事先携带了沙子。随着气球的升高，气球上面结满了冰，于是引起了一系列的麻烦。历尽千难万险，总算化险为夷。可当气球升至五千多米的高空时，他们实在无法忍受严寒，结果在波兰安全降落。

4.E。第一张纸的两面都要使用，这显然是谈节约用纸的方法。故答案为E。

3.A。选项D承接上文，另外下面的“…there will not be any trees left on the earth.”也对本题的解答起一定的暗示作用。

2.D。上一句“He made it from wood.”和下文的“He then put these pieces of paper…”是解答本题的关键。