A．bored B．involved

　　C．related D．blessed

　　11．Doctors are doing research to find out what happens physically when people ________smoking.

　　A．quit B．decline

　　C．depart D．reserve

　　12．We had to rely on our own intelligence to create ________and balance with the environment during development.

　　A．importance B．agreement

　　C．effect D．harmony

　　13．They said that the building of the new bridge would go ahead________.

　　A．as they plan B．as are planned

　　C．as planning D． as planned

　　14．Since our research so far has not produced any answers to this problem，we need to adopt a different ________to doing it.

　　A．approach B．means

　　C．method D．way

　　15．It was the first time I ________to America and I hadn't been abroad for a while.

　　A．have traveled B．had traveled

　　C．travel D．would travel

课后作业：

阅读理解

　　A

　　For many people，volunteering is a way of life .Holidays are the time of the year that more people are in a giving mood .Homeless shelters，children's hospitals，and nursing homes are excellent places to give of one's time.

　　Volunteering in Homeless Shelters

　　There is a homeless directory online that anyone can easily access to find the closest homeless shelter to their home .According to the homeless shelter directory，currently there are 3,233 shelters in the US，so it is not difficult to find a shelter .Helping to serve food，picking up donations of food，preparing meals，and cleaning up are things that one can do to help at a homeless shelter.

　　Volunteering in Children's Hospitals

Every child needs comfort and joy，especially during the holiday seasons .By visiting sick children in hospitals，an individual provides helping hands by supplementing the services usually done by the hospital staff .Personalizing the hospital experience adds to the comfort and happiness of