按要求写一段100字以内的文字。要求：①必须包含“冬日”、“游戏”“读书”三个词

根据提示完成句子

1. He ever had many _________( opportunity) to visit Beijing, but he gave them up.

2.  Your homework must _________( finish)  this evening.

3. Volunteering in the hospital is a good _________ ( experience) for me.

4.  He often _________( study)  foreign books with his friends.

5. Do you have to wear_________ ( uniform) at school?

6. __________(目前 ) , children under 14 are not al lowed to go to bars.

7. We should _________ (集中于) the study.

8.  Last year I _________(有机会) to study in foreign countries.

9. You say that the baby can stay at home by himself, but I_________(不同意) you.  I think it's

    dangerous.

10.  Getting up early ___________(对……有益处)your health.

我们用碎冰和碎蜡研究物质的熔化过程，为让碎冰和碎蜡均匀和缓慢地熔化，我们把碎冰放到盛有温水烧杯中，把碎蜡放到盛有热水的烧杯中分别进行实验并记录数据，实验装置如图所示．

（1）在图1中，温度计的玻璃泡______（填“能”或“不能”）接触试管，读数时眼睛应与温度计液柱的上表面______．

（2）从图2中，我们可以知道，这是______（填“晶体”或“非晶体”）的温度随时间变化的图象，这种物质是______（填“冰”或“蜡”）．

（3）在图3中画出蜡熔化时的图象．

（4）在冰和蜡熔化过程中，如果将试管从烧杯拿出来，冰和蜡停止熔化．将试管放回烧杯后，冰和蜡又继续熔化．说明固体熔化时需要______（选填“吸热”、“放热”或“不吸热也不放热”）．

---         do you watch the English show on TV?

---I watch it every day to improve my spoken English．

A．How often

B．How long

C．How soon

D．How far

甲乙双方发生房屋交换行为，当交换价格相等时，契税( )。

A．由甲方缴纳
B．由乙方缴纳
C．由甲乙双方各缴一半
D．甲乙双方都不缴纳

层次是结构的基础，是作者传递信息、表达主题过程中形成的相对完整、相对独立的思想单位。