Table 2 Categories and unit numbers of learning materials

Reading

1

Reading comprehension

6

2

Reading comprehension

7

3

Reading comprehension

6

4

Reading comprehension

6

5

Reading comprehension

6

6

Reading comprehension

7

7

Reading comprehension

6

8

Reading comprehension

6

Listening

1

Short conversation

15

2

Long conversation

14

3

Long announcement

15

4

Formal conversation

22

5

Short conversation

15

6

Long conversation

14

7

Long announcement

14

8

Formal conversation

21

Grammar

1

Grammar and word usage

95

2

Grammar and word usage

89

3

Grammar and word usage

98

4

Grammar and word usage

120

5

Grammar and word usage

84

6

Grammar and word usage

81

7

Grammar and word usage

106

8

Grammar and word usage

120

Total

973