《2025年教与学课程同步讲练九年级英语全一册人教版》

This passage is familiar to me.
I'm familiar with this passage.
② 根据句意,在空白处填入一个适当的词
(1)The Curies are best known for discovering radium.
(2)Ray Tomlinson is known as "the father of e-mail".
(3)It is known to us that home is the warmest place no matter where we go.
③ 根据句意,在空白处填入一个适当的词
A number of students are on the playground.
The number of boys is about 20.
④ 语法填空迁移练
(1)There is no need to be（be）angry. It was just a misunderstanding.
(2)There is no need to buy（buy） this product，because there is a similar one at home.

答案： ① with ②
(1)for
(2)as
(3)to ③ A, are, The, is ④
(1)to be
(2)to buy