免费课:Unit 1 Growing up P2
9Unit 3 Healthy or unhealthy P1
10Unit 3 Healthy or unhealthy P2
11Unit 3 Healthy or unhealthy P3
12Unit 3 Healthy or unhealthy P4
15Unit 4 Our neighbours P316Unit 4 Our neighbours P4
33Unit 9 Great cities of the world P1
34Unit 9 Great cities of the world P3
35Unit 9 Great cities of the world P4
免费课:Unit 1 You and me P11)
6.Unit 2 Changes in our lives P16)
7.Unit 2 Changes in our lives P27)
8.Unit 2 Changes in our lives P38)
9.Unit 2 Changes in our lives P49)
10.Unit 3 Our school in the future P110)
11.Unit 3 Our school in the future P211)
12.Unit 3 Our school in the future P312)
13.Unit 3 Our school in the future P413)
26.Unit 7 Helping others P126)
27.Unit 7 Helping others P227)
28.Unit 7 Helping others P328)
29.Unit 7 Helping others P429)
34.Unit 9 Reusing things P134)
35.Unit 9 Reusing things P235)
36.Unit 9 Reusing things P336)
37.Unit 9 Reusing things P437)
38.Unit 10 Great storybooks P138)
39.Unit 10 Great storybooks P239)
40.Unit 10 Great storybooks P340)
41.Unit 10 Great storybooks P441)
42.Unit 11 Western fesivals P142)
43.Unit 11 Western fesivals P243)
44.Unit 11 Western fesivals P344)
45.Unit 11 Western fesivals P445)
46.Unit 12 The five peas P146)
47.Unit 12 The five peas P247)