初三英语教案Unit 15 We’re trying to save the animals!
2.The car is made_______ (from, of)metal．
解析:be made of与be made from都是“由……制成”，be made of的制成品可以看出原材料，而be made from的制成品则一般看不出原材料，以上例题应选of。
3. Class begins, please stop__________ (talking, to talk)．
解析：stop后既可跟动词-ing形式也可跟动词不定式，但两者的意思不相同，用动词-ing形式是停止做某事，而不定式则是停下来去做某事，本句应选talking。
单元练习
I．根据所给单词的首字母补全单词
1 It's important to r______ paper to save the trees.
2 The a_______ animals should be put in cages.
3 Elephants are the most e_________ animals in the world.
4 That zoo is s_________ for animals to live in.
5 Most people are a__________ putting animals in the zoo.
II．用动词的正确形式填空
1 There_________ (use)to be a lot of manatees.
2 So far, no man________ (travel) farther than the moon.
3 How long ______ you ______ (be) in Ningxia?
4 If it________ (be)a nice day tomorrow, we can go out for a picnic.