一、 结构与词汇

1-5 BCCBB 6-10 BABBB 11-15 CDCAB 16-20 CBDBD

21-25 ADABA 26-30 ABAAB 31-35 CBBAD 36-40 CABDB

41-45 BCBCD 46-50 DADBA

三、阅读理解

51．C 52．A 53．B 54．B 55．A

56．C 57．D 58．A 59．C 60．C

61．D 62．B 63．A 64．C 65． A

66．D 67．C 68 B 69．B 70．C

四、英泽汉

71）人类作为一个物种其惊人的成功在于人类大脑进化发展的结果，这种结果引发了许多事情，其中包括工具的使用和制造，通过逻辑推理、细心合作、运用语言解决问题的能力。

72）现代黑猩猩的大脑大概同数百万年前指挥最早猿人举止的大脑没有多大的区别。

73）黑猩猩的确不能把它的工具造成“常规或固定的形状”，但是史前人类在石器发展以前是毫无疑问也是用棍子、稻草摸索着发展，在那个阶段，他似乎也不可能将工具自成固定的形状。

74）正是由于在大多数人头脑中工具与人类的密切联系，人类才特别关法可以把物体当工具使用的任何一种动物，但值得往意的是，这种能力就其自身而言并不表明这种动物有什么
特别的智慧。

75）当一种动物能够使自己操纵物体的能力适用于更广泛的范围，并且能够自发地使用物体解决只有通过工具才能解决的崭新问题，工具的使用和制造就肯定达到了具有进化意义的阶段。

College Students' Ways of Spending Summer Vacation
From the two charts, we can see that in the past ten years the students who go travelling and do social investigation during summer vacation have increased greatly while those who stay at home have decreased a lot.
There are several reasons for the changes. Firstly, with the development of economy, many people have become rich. Students can get financial support from their parents for travelling. Secondly, tourism has greatly developed over the past ten years. Many new scenic spots have been built. In addition, the open policy has brought in from the outside world some harmful ideas on politics and aroused some false opinions about China among college students , so the government has been encouraging college students to do investigations on the rapid development in both urban and rural areas.
From the change in the charts, we can predict that more and more college students will make their summer vacation interesting and meaningful by going to the outside world instead of staying at home.