五.语法填空 (15分) Backpacking is a popular ac

问题：

五.语法填空 (15分)

Backpacking is a popular activity in the United States. Many different companies produce goods and equipment for those___1___ enjoy living for a while in nature. Several companies sell special foods, some of ___2____ have been produced using a method that removes the water. This method is called freez-drying. These meals include different foods such as meat, vegetables and rice or perhaps a ____3____ (mix) of several foods.

Hot water is added to the ___4_____ (dry) materal to replace the missing water. This produces a meal that ____5____ ready to eat. Backpackers use this method to carry food for two reasons. The food is easy to carry because it weighs a lot less ____6____ the water. And food that has been freeze-dried ___7____ (remain ) safe to eat for a long time.

Also, many companies produce special clothing for people who enjoy backpacking. Some companies make strong shoes made for walking and hiking. ____8____ make small stoves for cooking food. Other companies make small lightweight cloth tents campers can carry anywhere

____9______( convenience ). A few companies sell equipment that makes water safe to drink. And ___10______ number of companies make the backpacks that campers use to carry all this equipment.

1. _________  2. ____________  3. ______________  4. ____________  5. __________

6. _________  7. ____________  8. ______________  9. ____________  10.__________