五.语法填空 (15分)Backpacking is a popular activity in the United States. Many differe

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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.__________

答案

1. Who         2. which       3. mixture        4. dried            5. is
6. without     7. remains      8. some          9. conveniently      10. a

解析

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