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1. 同学们正在分享他们所知道的关于濒危动物的知识,一起听一听,给下面的图片用1、2、3……排序。
答案：
2—5—3—4—1—6
2. 熟练的数字表达可以帮助我们更好地记录濒危动物的数量。一起来练习一下吧！听一听,选择正确的答案。
(
A. 32 B. 1,135 C. 1,145
(
A. 8,400 B. 6,400 C. 5,600
(
A. hundreds of B. thousands of C. millions of
(
A. 2,030 B. 2,003 C. 2,300
(
A. no B. 340 C. 360
(
B
)①There are ______ students in the school.A. 32 B. 1,135 C. 1,145
(
C
)②There were ______ books in the library in the past.A. 8,400 B. 6,400 C. 5,600
(
B
)③There were ______ monkeys in the forest in the past.A. hundreds of B. thousands of C. millions of
(
A
)④On the farm, there are ______ chicks.A. 2,030 B. 2,003 C. 2,300
(
B
)⑤There were ______ apple trees in the fruit park before.A. no B. 340 C. 360
答案：
①B ②C ③B ④A ⑤B
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