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

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. 1. Who 2. which 3. mixture 4. dried 5. is

(答案→)1. Who 2. which 3. mixture 4. dried 5. is 解析：可联系答.案.网客服索取。

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