Unit8语法专项— 代词 it 的用法 课件2025-2026学年沪教版英语七年级上册

教学课件 沪外教英语七年级上册 Unit8语法专项—— 代词 it 的用法 全解精讲+分层练习 1 学习目标 掌握it指代：事物、天气、时间 掌握it作形式主语 掌握it作形式宾语 it的用法 — 指代事物 指代前文提到的事物/东西 单数，不分人 例：I have a pen. It is blue. 例：This cake is nice. I like it. it的用法 — 指代天气 指代天气状况 常用：sunny, rainy, cold, warm 例：It is sunny today. 例：It was cold yesterday. it的用法 — 指代时间/距离 指代时间、日期、距离 例：It is 8 o’clock now. 例：It is Monday today. 例：It is 5 km from here. it作形式主语（重点） 真正主语太长，用it放句首 结构：It + be动词 + 形容词 + to do 例：It is easy to learn English. 真正主语：to learn English it作形式主语（句型） It is + 形容词 + to do sth. It is + 名词 + to do sth. 例：It is fun to travel. 例：It is a tradition to eat dumplings. it作形式宾语 真正宾语太长，用it放动词后 结构：主语 + 动词 + it + 形容词 + to do 例：I find it easy to swim. 真正宾语：to swim it用法总结 指代事物：代替单数名词 指代天气：sunny/rainy/cold 指代时间：几点、星期、日期 形式主语：It + be + 形 + to do 形式宾语：动词 + it + 形 + to do 练习1 — 判断it含义 1.It is hot today.（天气/时间/事物） 2.I have a bag. It is red.（天气/时间/事物） 3.It is 9 p.m. now.（天气/时间/事物） 4.It is interesting to read.（形式主语/事物） 5.It is a good idea.（形式主语/事物） 天气 事物 时间 形式主语 形式主语 练习2 — 单选（指代用法） 1.—What’s the weather like? —______ is windy. A. This B. It C. That 2.I bought a bike. ______ is new. A. It B. This C. That 3.______ is easy to cook noodles. A. It B. This C. That 4.______ is great to spend holidays. A. That B. This C. It 5.I find ______ fun to play games. A. it B. this C. that 6.She thinks ______ hard to learn math. A. this B. it C. that B A A C A B 练习3 — 改写 1.To play basketball is exciting.（用it改写） 2.To visit the Great Wall is wonderful.（用it改写） 3.To get up early is good.（用it改写） 4.To eat mooncakes is a tradition.（用it改写） It is exciting to play basketball. It is wonderful to visit the Great Wall. It is good to get up early. It is a tradition to eat mooncakes. 练习4 — 改写（形式宾语） 1.I think to learn English is useful.（用it改写） 2.She finds to swim is relaxing.（用it改写） 3.The book is interesting. I like the book.（用it改写） 4.The cat is cute. I love the cat.（用it改写） I think it is useful to learn English. She finds it relaxing to swim. The book is interesting. I like it. The cat is cute. I love it. 练习5 — 完成句子 1.今天很冷。 ______ ______ cold today. 2.读书很有趣。 ______ ______ interesting ______ read. 3.我发现跑步很容易。 I ______ ______ easy ______ run. It is It is to find it to 练习6 — 改错 1.This is easy to do homework. 2.I find that fun to play football. 3.It are great to travel. 4.To swim is hard, I don’t like that. This→It that→it are→is that→it 易错点1 — 指代区分 天气：cold/warm/sunny → it 时间：几点/星期/日期 → it 事物：单数名词 → it 不用this/that代替天气时间 易错点2 — 形式主语 真正主语：to do不定式 结构：It + be + 形/名 + to do 不能用This/That开头 ❌ This is easy to learn. ✅ It is easy to learn. 易错点3 — 形式宾语 结构：动词 + it + 形容词 + to do 常用动词：find, think, feel, make ❌ I find that easy to swim. ✅ I find it easy to swim. 易错点4 — 主谓一致 it作主语，谓语用单数 ✅ It is fun. ❌ It are fun. 知识梳理（一） 指代：事物、天气、时间 形式主语：It + be + 形 + to do 形式宾语：动词 + it + 形 + to do 知识梳理（二） 指代用法：代替单数名词/天气/时间 形式主语：避免头重脚轻 形式宾语：简化长宾语 口诀：天气时间都用it，长句开头也用it 总结（一） it指代：事物、天气、时间 形式主语：It + be + 形容词 + to do 形式宾语：动词 + it + 形容词 + to do 总结（二） 天气时间用it，指代事物也用it 长句开头用it，形式主语代替to do 动词后面用it，形式宾语简化句子 教学课件 Unit8语法专项—— 代词 it 的用法 Thank you for listening! 24 $