《2025年同步练习册外语教学与研究出版社五年级英语上册外研版河南专版》

1. Look, say and write. 看一看，说一说，写一写。
① (1只青蛙) One frog, one mouth, two eyes and four legs.
② (2只青蛙) Two frogs, _______ mouths, _______ eyes and _______ legs.
③ (3只青蛙) Three frogs, _______ mouths, _______ eyes and _______ legs.
④ (4只青蛙) Four frogs, _______ mouths, _______ eyes and _______.

答案： ② two, four, eight
解析：1只青蛙1张嘴、2只眼睛、4条腿，2只青蛙则嘴巴：1×2=2，眼睛：2×2=4，腿：4×2=8。
③ three, six, twelve
解析：3只青蛙嘴巴：1×3=3，眼睛：2×3=6，腿：4×3=12。
④ four, eight, sixteen legs
解析：4只青蛙嘴巴：1×4=4，眼睛：2×4=8，腿：4×4=16，“16条腿”用sixteen legs。

2. Read and choose. 读一读，选一选。
1) How many chairs ______ in the classroom?
□ A. are there
□ B. is there
□ C. there are
2) How many people are there in your family?
□ A. There are one people.
□ B. There are four people.
□ C. There is four people.
3) A: How many _______ can you see?
B: I can see four boys.
□ A. girl
□ B. girls
□ C. boys

答案： 1) A
解析：“How many+名词复数+are there+地点状语?”是询问某地有多少某物的固定句型，chairs是复数，be动词用are，故选A。
2) B
解析：people是复数名词，“一个人”用“one person”，A选项语法错误；C选项中is与four people不搭配，B选项“ There are four people.”语法正确，故选B。
3) C
解析：答句是“four boys”，问句应询问“多少个男孩”，用“boys”，故选C。