第四单元
1.D) A contest.
2.B) 3281 No. 1 Road, Richmond.
3.A) Doctor and patient.
4.B) In a class.
5.A) 700 dollars.
6.D) Three months.
7.B) In Nauru.
8.D) She will continue looking for the location on the map.
9.D) $275.
10.C) He does not have any preference so long as it is not a ground floor one.
11.A) He believes that the price is too high.
12.B) They may slap another man on the back.
13.D) The back.
14.C) With both legs at the same level and feet on the ground.
15.B) Wave with fingers turned down.
16.C) Use the serving spoon.
17.C) Stick it in the wallet and then put the wallet in a front pocket.
18.D) To be punctual.
19.C) A lot of students were more than 30 minutes late.
20.B) He talked to both American and Brazilian students about lateness for both formal and informal occasions.
21-30. As we interact with others of different cultures。。。
21： substitute 22： effective 23： gained 24： positively 25： variety 26： genuine 27： contributions 28： appreciation 29： humor 30： exterior
31-40.The military aspect of the United States Civil War has always。。。
31.scholars 32.fascinated 33.spectacular 34.uncertainty 35.victories 36.respective 37.demands 38.cooperations 39.blankets 40. boomed