猜一猜。
绿衣小英雄,田时捉害虫,
冬天它休息,夏天勤劳动。
谜底:____
仔细阅读课文《大自然的语言》2、3小节,回答
这两小节大自然告诉我们什么语言?
物质
密度(kg/m3)
铅
11.3×103
银
10.5×103
铜
8.9×103
锡
7.3×103
从方框中选词并用其适当形式填空
wear sing hear watch help
(1)Tony likes music and he likes ____.
(2)Be quiet! Can you ____ someone is singing a song?
(3)Tom’s aunt always ____ T- shirts.
(4)The family like ____ TV at home together.
(5)Li Lei always ____ others.