1. —Nowadays a growing number of people go to work by bike.

—Bicycling is good exercise；________it doesn't pollute the air.

1. What mobile phones will look like in a year or two is easy to guess—they will be slimmer and probably will let you watch television________.

1. —How do you find your trip to Hainan?

—Lots of sunshine，wonderful food，and amazing nightlife—________a great vacation.

1. It remains to be seen whether the plan which has been approved can be ________.It depends on your determination.

1. 随着高考的临近，部分高三住校生要求搬出学生宿舍，在学校附近租房子。针对这种现象，各方反应不一。请根据下面提示，一分为二地写一篇短文，说说两者各自的好处与弊端，并发表你的观点。1．学习时间和效果；2．安全性；3．自由性；4．与同学交往。

注意：1.两方面的理由至少要有两条；2．词数：150左右。

1. If you don't buy insurance for your car，you may ______losing everything when it gets destroyed in an accident.

1. The twins were so much alike that we had great trouble ________one from the other.

1. Walk faster，________you may catch up with your friends ahead.

1. 阅读理解

    “The U．S.Food and Drug Administration(FDA)is considering to put stricter limits over tanning salons(晒黑廊)and wants to ban anyone younger than 18 years of age from using a tanning bed，”an advisory panel(专家团)announced last week.

    The panel is calling for tighter controls on the industry such as requiring teenagers to get the approval from their parents before using tanning beds or limiting the use of artificial tanning to a certain age.“Given the absence of any demonstrated benefits，I think it is an obligation for us to ban artificial tanning for those under 18，”said panelist Dr.Michael Olding.

    Along with a possible ban for teenagers，the panel also recommended that visible warning labels should be placed either on the tanning machines or in the salons in order to caution tanners of the possible dangers.In addition，the committee decided that stricter regulations and classifications were critical to make the machines safer.At this time the machines are categorized as FDA Class 1 devices，the ones that are least likely to cause harm.In case the FDA decided to change their classification from Class 1 to Class 2，as advised by the panel，the FDA could limit the levels of radiation the machines emit.Class 2 devices include X­ray machines and powered wheelchairs.

    Getting a tan，whether from a tanning bed or the sun，increases the risk of developing skin cancer.Last year，the World Health Organization's International Agency for Research on Cancer (IARC)declared tanning beds as “carcinogenic(致癌的)to humans”．It was discovered that young individuals in their teens and 20s who use tanning beds on a regular basis have a 75 per cent higher risk of suffering from melanoma(黑素瘤)，the deadliest form of skin cancer.According to the American Cancer Society，melanoma accounted for nearly 69,000 cases of skin cancer in 2009 and will account for most (about 8,650)of the 11,590 mortality cases due to skin cancer each year.

1. During the ten­day vacation，they traveled to many parts of France ________their own expense.