Unit5 How are the seasons different？ Explore（讲义）-2025-2026学年沪教版英语四年级上册

Unit 5 How are the seasons different? ⭐Explore知识点清单 一、核心词汇 1. 四季与循环 · spring（春天）、summer（夏天）、autumn（秋天）、winter（冬天） · season（季节）、four seasons（四季） · come after（在…… 之后到来）、begin again（重新开始） 2. 天气与自然变化 · warm（温暖的）、hot（炎热的）、cool（凉爽的）、cold（寒冷的） · rain（下雨，v./n.）、snow（下雪，v./n.）、usually（通常） · grow（生长）、fall（落下）、turn（变成） · plant（植物）、leaf（叶子，复数 leaves）、honeybee（蜜蜂） 3. 时间描述 · day（白天）、night（夜晚）、long（长的）、short（短的） 二、核心句型 1. 四季总述与循环 · There are four seasons in a year: spring, summer, autumn and winter. （一年有四个季节：春、夏、秋、冬。） · Spring comes after winter. / Summer comes after spring. / Autumn comes after summer. / Winter comes after autumn. （春在冬后 / 夏在春后 / 秋在夏后 / 冬在秋后。） · Then it's spring! The seasons begin again. （然后春天来了！四季重新开始。） 2. 各季节特征描述（核心） 季节 核心描述句 Spring Plants grow in spring. / It gets warm. It usually rains a lot. The rain helps plants grow. Summer Summer days are long and hot. / It gets hot. The days are long and the nights are short. The sun helps fruit and flowers grow. Autumn Leaves fall in autumn. / It gets cool. Leaves turn red, yellow and orange. Winter Winter days are short and cold. / It gets cold and it often snows! Many trees don't have leaves. 3. 一般现在时否定句（语法重点） · It doesn't get cold.（天气不会变冷。） · It doesn't snow in summer.（夏天不下雪。） · 缩写：does not → doesn't 4. 季节观察与表达 · In spring, it gets warm. We can see a lot of honeybees outside. （春天天气变暖，我们能在外面看到很多蜜蜂。） · Summer is my favourite season. It gets hot... （夏天是我最喜欢的季节，天气变热……） 三、语法知识点 1. 一般现在时（描述客观规律） · 主语为第三人称单数时，动词变 -s/-es： get → gets, rain → rains, snow → snows, help → helps, turn → turns, fall → falls · 例：It gets warm in spring. / The sun helps fruit grow. 2. 一般现在时的否定句（核心考点） · 主语为第三人称单数：主语 + doesn't + 动词原形 例：It doesn't snow in summer. / It doesn't get cold. · 主语为非三单：主语 + don't + 动词原形（拓展） 3. 介词 in 的用法（季节 / 时间） · in + 季节：in spring /in summer /in autumn /in winter 例：It snows in winter. / We see honeybees in spring. 4. 形容词作表语 · It gets + 形容词（天气变得……）：It gets warm/hot/cool/cold. · 并列形容词：long and hot /short and cold ⭐Explore同步练 一、选词填空（每空 3 分，共 30 分） 从方框中选择合适的单词，补全句子，每词限用一次。 spring, summer, autumn, winter, warm, hot, cool, cold, grow, fall 1. There are four seasons in a year: ______, summer, autumn and ______. 2. In spring, it gets ______. Plants ______ well. 3. In ______, it gets very ______. Days are long and nights are short. 4. In autumn, it gets ______. Leaves ______ from the trees. 5. In winter, it gets very ______. It often snows. 二、单项选择（每题 4 分，共 20 分） ( ) 1. It ______ warm in spring. A. get B. gets C. getting ( ) 2. It ______ snow in summer. A. doesn't B. don't C. isn't ( ) 3. Summer comes ______ spring. A. before B. after C. in ( ) 4. In winter, many trees ______ have leaves. A. doesn't B. don't C. aren't ( ) 5. —What's summer like? —______ A. It's warm and rainy. B. It's hot. Days are long. C. It's cool. Leaves fall. 三、情景交际（每题 5 分，共 20 分） 从方框中选择合适的句子，补全对话，每句限用一次。 A. It gets hot. Days are long. B. It's my favourite season. C. It gets cold and it often snows. D. The rain helps plants grow. 1. —What's spring like? —It gets warm. It usually rains a lot. ______ 2. —What's summer like? —______ 3. —What's winter like? —______ 4. —I like autumn. —______ It's cool. Leaves turn yellow. 四、课文填空（每空 3 分，共 27 分） 根据课文内容，补全短文，每空一词。 There are four ______ in a year. Spring comes after winter. It gets ______. It usually rains a lot. The rain helps plants ______. Summer comes after spring. It gets ______. The days are ______ and the nights are short. Autumn comes after summer. It gets ______. Leaves turn red, yellow and orange. Winter comes after autumn. It gets ______ and it often ______. Many trees don't have leaves. Then it's spring! The seasons begin ______. 参考答案 一、选词填空（每空 3 分，共 30 分） 1. spring; winter 2. warm; grow 3. summer; hot 4. cool; fall 5. cold 二、单项选择（每题 4 分，共 20 分） 1. B 2. A 3. B 4. B 5. B 三、情景交际（每题 5 分，共 20 分） 1. D 2. A 3. C 4. B 四、课文填空（每空 3 分，共 30 分） 1. seasons 2. warm 3. grow 4. hot 5. long 6. cool 7. cold 8. snows 9. again 学科网（北京）股份有限公司 $