小明看一本312页的故事书,每天看12页,看了6天,剩下的还要看几天?
(312-12×6)÷12,
=(312-72)÷12,
=240÷12,
=20(天);
答:剩下的还要看20天.
下列关于金属钠的叙述中,正确的是
A.为防止钠与水反应时燃烧,可将该反应置于试管中进行,以减少与氧气的接触
B.钠着火时应用干燥的沙土灭火
C.钠在空气中受热时,熔化为银白色的小球,产生黄色的火焰,生成白色粉末
D.钠在空气中长期放置,最终主要生成物为过氧化钠
按要求改写下列各句,每空一词。
1. The woman with the baby is walking into the shop. (就划线部分提问)
_______ _______ is walking into the shop?
2. Kathy will come to Anqing in a month. (就划线部分提问)
_______ _______ will Kathy come to Anqing?
3. We had a sports camp last Sunday. (用next Sunday 代替last Sunday后填空)
We're______ ______have a sports camp next Sunday.
4. If you study harder, your English will be better. (同义句转换)
_______ harder you study, the ______ your English will be.
5. We had a great time in the party last night. (同义句转换)
We _______ _______ in the party last night.