阅读以下短文，从文后表格中选出文中每段的小标题；根据短文内容回答第55小题．
Do you like winter？It's the coldest season of a year．Here are some things everyone should know about winter．
（51） Winter is the season when the temperture drops，snows covers the ground．When the temperture is below zero，water freeses and ice forms．
（52） After a heavy snowfall，children play in the snow．They build snow houses，make snowmen and have snowball fights．People also enjoy skiing，skating，and sledding in the winter．
（53）
The cold weather can also be dangerous； people slip on the ice and cars slide down hills knocking into each other．Some people also catch a cold when they stay out in the cold．
（54）
Because winter is so cold，people have to find ways to keep warm．People wear heavy coats，scarfs for their necks，gloves for their hands，and boots on their feet．
Children drink hot chocolate when they come in from the cold．And families sit around the firework at night and talk about what they did during the day．
（55） What does the passage mainly tell us？
A．Many people like winter best．
B．Winter has a lot of festivels．
C．The sports people shoud do in winter．
D．Things we should know about winter．
A．Winter Dangers： B．Winter Weather： C．Keep Warm： D．Winter Fun： |
Now more than 20 schools in the northwest of China （1） （use） E﹣textbooks．Some teachers say that they make learning easier and （2） （teach） more convenient．
Jing Xuan is excited about lessons like Chinese，English and math．She （3） （enjoy） the pictures and animations （动画） in the E﹣textbooks．The children here （4）_______ （study）With the help of the E﹣textbooks，some good ideas （5） （share） at times．Some parents encourage their children （6） （try） the E﹣textbooks to make learning easier．But others worry about their children's health．
"You can't imagine how the growing popularity of E﹣textbooks is changing the way the students learn! More and more students （7） （learn） with E﹣textbooks in the future．However，there's still a long way to go．"said the headmaster．
The clothes in this shop are the （cheap） in the city．
My sister is always strict with （she）．
Li Na is a famous tennis （play）．
The plane landed （safe） yesterday．