在美国和加拿大，用餐后不付小费是很失礼的事。（tip）
据报道，政府已经下定决心要解决环境污染问题。（determine）
令他惊讶的是，他的春考成绩比他期望的要好的多。(expect)
汉语是世界上最难的语言之一，学习这种语言的人就会很快发现自己遇到了挑战。(challenge)
直到真要出国了，这个年轻人才意识到自立的重要性。 (Not)
Some people would rather ride bicycles as bicycle riding has _____of the trouble of taking buses.
| A．nothing | B．none | C．some | D．neither |
--Do you have any trouble _____the work?
---No． in fact we have finished it already．
| A．finishing | B．to finish | C．finish | D．finished |
________ large number of people think ________ truth has been hidden on purpose.
| A．A; / | B．The; / | C．A; the | D．The; the |
假如你是Jenny. 你所在城市的孔子学院（The Confucius Institute）将举办“汉语桥”比赛，该比赛面向学习汉语的外国青年学生。你的美国笔友David学习汉语多年，你想建议他参加这个比赛。
请你根据下列提示给David写一封信介绍这个比赛并鼓励他参赛。
| “汉语桥”比赛 |
|
| 活动目的 |
1、提供展示汉语能力的舞台 2、激发学习汉语的热情 3、增进对中华文化的了解 |
| 参赛对象 |
年龄30岁以下、母语非汉语的外国高校学生。 |
| 比赛内容 |
1、演讲（3分钟） 2、当场问答（2分钟） 3、中国文化技艺表演（3分钟） |
| 参赛方式 |
参赛者须在2011年8月1日前向组委会提交个人信息资料。邮箱：chinesebridge@hanban.org. |
参考词汇：汉语桥：Chinese Bridge; 组委会：organizing committee
Dear David，
The Confucius Institute in my city is holding a competition____________
[1] Medical research is leading American education officials to consider having high school classes start later in the morning. The research says that teenagers are more awake later at night than adults are. When staying up late at night, the teenagers have problems learning early in the morning.
[2]Researchers in the state of Rhode Island measured the amount of the hormone(荷尔蒙) melatonin(降黑素) in people's mouths at different times of the day. Melatonin causes people to feel sleepy.
[3]They found that melatonin levels rise later at night in teenagers than they do in children and adults. It remains at higher levels in teenagers later in the morning. They said this shows that teenagers have difficulty learning early in the morning. Yet most school systems in the United States begin high school classes at about seven o'clock.
[4]A few school districts have made some changes. In 1996, school officials in Edina, Minnesota, changed the start of classes from seven thirty to eight thirty. Two years later, the nearby city of Minneapolis did the same. Teachers there reported that students were no longer sleepy in class and were happier. Staying in school later in the day did not seem to be a problem for students who had jobs after school either.
[5]Health experts say that teenagers need between eight and nine hours of sleep a night. Students _________ are likely to be 
late for school, fail to do their homework, fall asleep in class and have trouble taking part in class discussions.
[6]Some people, however, don't support a later start time because they say that it would limit the time for practicing sports after school. However, the Minnesota schools found that this did not hurt school sports competitions.
[7]More American school districts are discussing the possibility of changing high school start times. Researchers and teenagers say that they cannot make the change quickly enough.
1 What is the best title of the passage? (Please answer within 8 words.)
2 Please fill in the blank in the fifth paragraph with proper words or phrases to complete the sentence. (Please answer within 8 words.)
3 Complete the following statement with proper words.(Please answer within 5 words)
If they go to bed very late at night, teenagers ___________ early in the morning.
4 Do you think the change is necessary? Why? (Please answer within 15 words.)
5 What does the word “this”(line 3, paragraph 6) probably refer to?（no more than 4words）
粤公网安备 44130202000953号