1 Travelling 1
Vocabulary Exercises 1
Grammar Exercises 2
Reading Practice 3
2 Space 7
Vocabulary Exercises 7
Grammar Exercises 8
Reading Practice 9
3 Animals 13
Vocabulary Exercises 13
Grammar Exercises 15
Reading Practice 16
4 Scientists 20
Vocabulary Exercises 20
Grammar Exercises 22
Reading Practice 24
5 Sports 27
Vocabulary Exercises 27
Grammar Exercises 28
Reading Practice 30
自测卷1 33
自测卷2 46
Vocabulary Exercises 58
6 Water 58
Grammar Exercises 59
Reading Practice 60
7 Holidays 64
Vocabulary Exercises 64
Grammar Exercises 65
Reading Practice 66
8 Learning a language 69
Vocabulary Exercises 69
Grammar Exercises 70
Reading Practice 71
Vocabulary Exercises 75
9 Foreign Countries 75
Grammar Exercises 76
Reading Practice 77
10 The Internet 81
Vocabulary Exercises 81
Grammar Exercises 82
Reading Practice 83
自测卷3 87
自测卷4 99
补充阅读 111