问题 填空题

随着人类对水的研究的不断深入,水的应用也越来越广泛.研究人员最近发现,在一定的实验条件下,给水施加一个弱电场,在20℃、1个大气压下,水可以结成冰,称为“热冰”.“热冰”有许多实用价值,如开发新药、用于纳米打印机等,还可能用来______(填序号).

A、代替干冰     B、防止冰川融化   C、在室温下制作冰雕   D、建室温溜冰场.

答案

A、干冰是二氧化碳,热冰是水,不能代替;故错.

B、南极温度很低,不会形成热冰;故错.

C、在室温下制冰雕,符合热冰的特性;故对.

D、制室温溜冰场,也符合热冰的特性;故对.

故选CD

阅读理解

Blue Ocean Aquarium(蓝色海洋水族馆) is a great place for families to take a holiday. Children love to see the sea animals and watch films about sharks(鲨鱼)in it.

Last Saturday morning, Mr Jackson took his wife and two little sons to the aquarium. At the ticket office, he asked, "How much shall I pay(付款) to get in?" The woman at the ticket office answered, "The price is 20 dollars for each adult or any kid(小孩) older than five. We let kids in free(免费) if they are five or younger. How old are your kids?" Mr Jackson said, "The older one is six and the younger one is three.  I think I must buy three tickets. " The woman was surprised. She said, "Sir, don't you want to save(节省) 20 dollars? If you tell me your older son is five, I won't know the difference. " Mr Jackson said with a smile, "Yes, that sounds right, but my kids will know the difference. "

From Mr Jackson' s story, we know honesty is very important in the modern society(在现代社会). We should tell the truth(事实) to the people around us, especially(尤其是) to the kids.

小题1:Mr Jackson spend     on their tickets to the aquarium at last.

A.20 dollars

B.40 dollars

C.60 dollars

D.80 dollars小题2:Children can see      in Blue Ocean Aquarium.

A.dolphins

B.lions

C.giraffes

D.tigers小题3:The word “honesty” means     .

A.激情

B.友谊

C.乐观

D.诚实小题4:What can we learn from the passage?

A.Mr Jackson was very rich.

B.Mr Jackson wanted to save s ome money.

C.Mr Jackson paid for his two son’s tickets at last.

D.Mr Jackson thought honesty was more important than money.

判断题