题目内容：

Winter solstice, as the name shows, means the coming of winter. As an important solar term in the traditional Chinese calendar, it is also a traditional holiday for Chinese, which is also called “冬节”， “长至节”，“亚岁”, etc. Generally, winter solstice occurs between December 21st and 23rd. According to the traditional Chinese calendar, five days constitutes a pentad and three pentads constitutes a solar term. One year is divided into twelve periods and twelve climates which are regarded as twenty-four solar terms. The Winter Solstice is one of twenty-four solar terms. On this day, in the Northern Hemisphere the period of daytime is the shortest of the year and the period of night is longest. . In Northern China during winter solstice there is a custom of eating dumplings.

1.There are _________ solar terms in a year.

A.twelve B.five

C.twenty-four D.thirty-one

2.People often eat _________ during winter solstice

A.mooncakes B.dumplings

C.noodles D.chicken

3.Winter solstice is in ____.

A.January

B.September

C.October

D.December

4.On winter solstice the period of night is ________in China.

A.the longest B.the shortest

C.darkest D.brightest

5.Which day has the longest daytime in China?

A.The beginning of spring

B.Summer solstice

C.Grain full

D.The beginning of autumn