Ⅰ.单词拼写
1．This city is very famous for its ________ (旅游业)．
2．We should do our best to help those ________ (无家可归的) people.
3．You could find out many ________ (相似性) between the twin brothers.
4．Students can develop their intelligence through study as well as ________ (娱乐)．
5．Steel and gasoline are ________ (工业的) products.
6．Indians are the first ________ (居民)of North America.
7．Please show me the ________ (位置) of your school.
8．Can I ________ (交换) pounds for dollars here?
9．Many rivers are being ________ (污染) now.
10．Many ________ (慈善团体) sent money to help the refugees (难民)．
