摘要：15． C.介词as表示“作为 .为正确选项. 18 You may think there is only sand in the desert of the world, 1 it is not true. In the desert, as we know, there is a little 2 , but it is not 3 for most plants. Still we can see some plants 4 in the desert. There is 5 in some places in the desert. We 6 these places oases. In the oases, there are villages and towns. People grow 7 kinds of crops in the fields there. People 8 live outside the oases. They have camels, sheep and other animals. These animals depend 9 the desert plants for their food and do not need 10 water. The 11 are useful to the desert people in many ways. They eat the meat and drink the milk of the animals. They use the camels for carrying water, food, tents and something else. The people of the desert have to keep moving from place to place. They must always look 12 grass or desert plants for their animals. When there is no more food for their animals, they move to 13 place. The desert people are 14 . No man in the desert would ever refuse 15 the people in trouble and give them food and water.
My name is Kay．I usually have two meals 1 day-brunch and dinner．“ 2 ” means(意思是) breakfast and lunch．I 3 brunch at a restaurant．I 4 a hamburger, 5 French fries and a banana for 6 After brunch,I 7 with my friends,and we have 8 together．For dinner,I like an 9 and a tomato．After dinner, I always have ice creamfor 10 ．
Look! This is our lovely school．There are 1 buildings in our school．This is our teaching building．There 2 four storeys(层)．There are four classrooms on each storey． 3 classrooms are very big．Every classroom 4 got a computer， 5 overhead projector(投影仪)，a whiteboard and two bookcases．
This is our lab building．There are physical(物理的)，chemical，music and computer rooms in it．We like 6 there．
That building is our 7 ．We often read there or borrow(借)books 8 it．That is our dining hall．We often 9 supper there．