卷四阅读：
47K
48I
49D
50N
51 L
52H
53O
54B
55M
56 E
57 D different
58 A gave no
59 B some navigational
60 C thinks
61 B people
62 A enter high school
63 C in economics
64 D course
65 B doesn’t66 D less
卷五阅读：
47G
48L
49J
50O
51M
52D
53K
54N
55H
56 B
57 A adjust
58 C a play
59 D overcome
60 B besides
61 B you are joyful
62 C the sea
63 D both
64 A insects
65 B more
66 D more
卷六阅读：
47F
48N
49B
50M
51O
52H
53C
54C
55I
56 E
57 A worse
58 C abolishing
59 B does not
60 A international
61 D war62 B the definition
63 A function
64 D they have esisted
65 D the naturally
66 B one