★★★★Seasons & Weather

Winter is the coldest season because the sun is atitslowest point in the sky.85

 冬天是最冷的季节，因为太阳在天空的最低点  

Winter sports include skiing and ice skating. 92

冬季运动包括滑雪和溜冰 

       名词所有格 / 物主代词+最高级 → eg ：itslowest point 它的最低点 ； my best friend 我最好的朋友

       sking 滑雪 → ice skating 滑冰 → short track / speed skating 短道速滑

Summer is the hottest season because the Sun is at its highest point in the sky. 

夏天是最热的季节，因为太阳位于天空中的最高点

Many people like to go swimming in the summer because of the hot weather.   87

因为天气炎热，所以许多人喜欢在夏天游泳 

       because 是连词，后面接句子；

       because of 是复合介词，后面一般接名词、动名词或者代词 → eg ：because of you 因为你

Spring is the season when the weather gets warmer each day.  81

春天是天气一天天转暖的季节

For many animals, new life begins in the spring.  89

对许多动物来说，新生命始于春天

       定语从句：在句子中起形容词的作用，修饰—名词或代词的分句

       关系词：引导定语从句的词，连接主句与定语从句

       先行词：被定语从句修饰的词

       【句子解析】Spring is theseason(先行词)（主句） when(关系词)the weather gets warmer each day（定语从句）.

       物品做先行词，关系词选that / which → eg ：This is the photo that / which I took last year. 这是我去年拍的那张照片

       人做先行词，关系词选that / who → eg ：I don;t trust people that / who talk too much. 我不信任话多的人

Autumn is the season when the weather begins to cool and the days begin to shorten. 80

秋天是天气开始变冷，白天开始变短的季节

Autumn is when trees turn many colors and leaves fall to the ground. 79

秋天是树木变了许多颜色，树叶掉到地上的时候 

       【句子解析】Autumn is the seasonwhen the weather begins to cool and the days begin to shorten.(定语从句)

       cool v.变凉 ； shorten 变短 → eg ： The days begin to shorten. = The days begin to get shorter.

       fall ：1）v. 落下 ；2）n.[美式英语]秋天

Rainy season is the season when some countries get most of their rainfall(降雨量). 

雨季是一些国家大部分降雨的季节

Rainy season usually lasts for one or two months. 85

雨季通常持续一到两个月 

       for+一段时间 → eg ：Our class usually lasts for 30 minutes. 我们的课一般上30分钟