01-05 ADBCD                    06-10 ABCCD             11-15 DCBBA

16-20 CADDC                   21-25 ADDCB              26-30BDBBC                   

31-35 BBCCC                    36-40 BAACB

41-45 DBADD                    46-50 DCBCC           51-55 BCBBC                    56-60 ADCAB

61-65 BDCAA                    66-70 CBDDC            71-75 ABACD                    76-80 BACBD

81、这些发现已经成为一门完整的学科——色彩心理学。

82、所以，在一些发达国家中，消防车和救护车的颜色为鲜黄色。当他们呼啸而过时，其他车辆都要为之放行。

83、对于每一种社交场合，你盯着对方凝视的时间不能超过一定的长度，否则你的举止显得过于亲密、粗鲁或具有攻击性。

84、通常，自行车越野赛在9月至次年3月间举行。冬天恶劣的气候使比赛更具有挑战性。

85、在这一过程中，暖空气中的水汽变成了雨，热量随之转化成另一种形式的能量——强风。

86、The best way to learn a language is to practice speaking it as often as possible.

87、We could have avoided making such a mistake, but we didn’t follow his advice.

88、So long as we don’t lose heart, we’ll find a way to overcome the difficulty.

89、The committee was unable to agree on a policy, so it decided to meet again next month.

90、We should study hard, because no man who does not study hard can achieve great success.

Part V 参考例文

Dear friends,

When you are walking on the beautiful avenues lined with ever-green trees in this campus, talking and laughing with your friends or enjoying the beautiful view of the sunset at the top of the small mountains, have your ever thought about the children in remote, rural place, who are just as ambitious, but have dropped out from school because of poverty?

Surely, they desire to return to school and sit in the classroom to listen to the teachers’ lectures, and they want to play in the schoolyard. However, their families are too poor to afford to send them back to school. They are short of money, books and even teachers to teach them. Dear friends when you have thought about this, do you believe that it is our college students’ responsibility to do something to help those dropouts to rebuilt their hope for the future and realize their dreams?

The next Sunday evening, we will hold a party in the campus hall at seven o’clock to collect some money for those poor children. At the party, President of our university will make a speech to us; besides, some famous singers and dancers will present us some wonderful performances. I hope that you will come here on time to participate in the party. You can donate some money, some children’s books, pens or some cloths to those children. Many hands make light work. You small contribution may change a child’s future. Your participation is needed and warmly welcome, any of your help is much appreciated. Come and join us, my friends!