D. make people dog-tired 69. It has been really hot these days, as _______.
A. it rains cats and dogs
B. we are having the dog days of summer
C. we’re leading a dog’s life
D. we’re in the dog’s house 70. What does the text mainly talk about?
A. Expressions in American culture.
B. Some expressions with the word dog
C. A good way to learn English well
D. Dog’s influence on American culture
D
Winter weather has returned to northern areas of the world. In much of the United States, winter means the return of snow.
Snow is a form of frozen water. It contains many groups of very small ice particles (颗粒)called snow crystals(晶体). These crystals grow from water particles in cold clouds. They usually grow around a piece of dust. All snow crystals have six sides, but they grow in different shapes. The shape depends mainly on the temperature and water levels in the air. The shape of a snow crystal may change from one form to another as the crystal passes through levels of air with different temperatures. Snow contains much less water than rain. About 75 cm of snow has as much water as 2.5cm of rain.
Generally, the color of snow and ice appears white. This is because the light we see from the sun is white. Most natural materials take in some sunlight. However, when light travels from air to snow, some light is sent back, or reflected(反射). Snow crystals have many surfaces to reflect sunlight. It is this light that gives snow its white color.
【江西省南昌市进贤县2016-2017学年高一上学期期末联考英语试题 Word版含答案】相关文章:
★ 重庆市2017-2017学年高一上学期期中考试 英语试题 Word版含答案
★ 辽宁省阜蒙县高级中学2016-2017学年高一上学期期中考试英语试题 Word版无答案
★ 江西省吉安市白鹭洲中学2017-2017学年高一上学期第二次月考 英语 Word版含答案
★ 甘肃省张掖市高台县第一中学2016-2017学年高一上学期期末考试英语试题Word版含答案
★ 河北省石家庄市第一中学2016-2017学年高一上学期期中考试 英语试题 Word版含答案
★ 河北省衡水市第十四中学2016-2017学年高一上学期分班考试 英语试题 Word版含答案
★ 广东省揭阳一中2017-2017学年高一上学期期中考试英语试题(Word版含答案)
★ 山东省临沂市郯城一中2017-2013学年高一下学期期中考试英语试题 Word版含答案
★ 江西省宜春市上高二中2016-2017学年高一上学期第三次月考 英语 Word版含答案
★ 四川省叙永一中2017-2017学年高一上学期期中考试英语试卷 Word版含答案
最新
2019-11-15
2019-11-15
2019-11-14
2019-11-14
2019-11-11
2019-11-11