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Unit 1 The Changing World
—— Section B (2a~3d) 学案 ——
阅读写作课：塞罕坝绿色奇迹 + 个人成长变化
人教版九年级上册 2026-2027学年
姓名 班级
日期 课题 Unit 1 Section B (2a~3d)
课前预习 Pre-class Preview
1. 词汇预习表 Word Preview Table
预习本课12个重点词汇，根据音标和释义补全单词（首字母已给出）。
单词（首字母填空） 音标 词性 中文释义
r___ /re l/ n. 铁路
n_____ / n r / adj. 狭窄的
v_______ / v l d (r)/ n. 村民
t__ ________ / l mp ks/ n. 奥林匹克运动会
l___ /li d/ v.&n. 带领;领先地位
m__-____ / m n me d/ adj. 人造的
m______ / m r kl/ n. 奇迹
j_____ / d u ni (r)/ adj. 低年级的;初级的
f___ /fl t/ n. 公寓
d_________ /d sk n/ n. 讨论
a_____ / spekt/ n. 方面
m______ /m m b s / n. 蒙巴萨
2. 短语预习 Phrase Preview
预习本课5个重点短语，完成中英互译。
英文 中文释义
stay the same 保持不变
be known as 作为……而闻名
be known for 因……而闻名
be different from 和……不同
be the same as 和……一样
请将下列中文翻译为英文：
1. 保持不变 ____________________
2. 作为……而闻名 ____________________
3. 因……而闻名 ____________________
4. 和……不同 ____________________
5. 和……一样 ____________________
3. 重点句型预习 Key Sentences Preview
朗读下列2个重点句型，理解句意并标注句型结构。
1. Today, Saihanba is known as "the green miracle".
译文：今天，塞罕坝被誉为‘绿色奇迹’。（be known as 作为……而闻名）
2. Now that I am older, my life is different from when I was in primary school.
译文：我长大了，生活就和小学时的不一样了。（be different from 和……不同）
课堂探究 Class Exploration
1. 2a 复合词学习 Compound Words
观察下列复合词，写出它们是由哪两个单词组合而成的，并写出中文意思。
复合词 组成单词 中文意思
greenhouse ____________________ ________________
sandstorm ____________________ ________________
highway ____________________ ________________
farmland ____________________ ________________
railway ____________________ ________________
2. 2b 选词填空 Complete the Sentences
用方框中所给单词的适当形式填空。
( product, corn, bridge, wide, capital )
1. The road used to be narrow and dirty. Now, it is ______ and clean.
2. The ______ made it convenient for the villagers to travel.
3. Beijing is the ______ of China.
4. Our farm has a lot of laying hens. They feed on ______, vegetables, and insects.
5. Look! This is a digital ______ that our company made.
3. 2c 短文填空 Passage Fill-in
阅读下面关于塞罕坝的短文，用方框中所给单词的适当形式填空。
( government, bushes, sandstorms, sandy, soil, result )
Saihanba: From Desert to Forest
Saihanba was once a (1)______ land in northern China. The area was covered with (2)______ and was hit by terrible (3)______ every spring. People could hardly see any (4)______ or trees.
In 1962, the Chinese (5)______ decided to change this. Hundreds of forest workers came to plant trees. They worked hard for many years. As a (6)______, the land has turned green. Today, Saihanba is known as "the green miracle".
4. 3a 阅读回答 Reading Comprehension
再读短文，回答下列问题。
1. Where is Saihanba located
__________________________________________________
2. What was the land like before the workers came
__________________________________________________
3. When did the government decide to change Saihanba
__________________________________________________
4. What did the forest workers do
__________________________________________________
5. What is Saihanba known as today Why
__________________________________________________
5. 3b 对比表格 Comparison Table
比较小学时和现在的变化，完成下列表格。
Aspect Primary School Now
Home ____________________ ____________________
School ____________________ ____________________
Study ____________________ ____________________
6. 语言点学习 Language Points
语言点一：be known as / be known for
【规则讲解】 be known as + 身份/称号，表示“作为……而闻名”，后接名词，主语和宾语是同一事物；be known for + 特点/原因，表示“因……而闻名”，后接名词或动名词。
例句1：Today, Saihanba is known as "the green miracle".
例句2：This town is known for its delicious seafood.
例句3：She is known as a great scientist.
练习：选择题
She ______ a good singer in our school.
A. known for
B. is known for
C. is known as
D. known as
答案：______
This town ______ its delicious seafood.
A. is known as
B. is known for
C. be known as
D. be known for
答案：______
【易错提示】be known as 与 be known for 的区别
be known as 表示“作为……而出名”，主语和宾语是同一个人或事物，二者可以画等号；be known for 表示“因……而出名”，宾语是出名的原因或特点。判断关键：看宾语是“身份/类别”还是“原因/特点”。
语言点二：be different from / be the same as
【规则讲解】 be different from 表示“和……不同”，后接名词或代词；be the same as 表示“和……一样”，后接名词或代词。注意：different 后的介词是 from，而不是 with。
例句1：My life is different from when I was in primary school.
例句2：This pen is the same as yours.
例句3：Chinese food is very different from Western food.
练习：选择题
My ruler is ______ yours. They look quite different.
A. the same as
B. different from
C. same as
D. different with
答案：______
This pen is ______ yours. Both are black.
A. different from
B. the same as
C. same from
D. different with
答案：______
【易错提示】be different from 与 be the same as 的区别
be different from 表示“与……不同”，用介词from，不能用with；be the same as 表示“与……相同”，用介词as。the same…as…也可用于同级比较，表示“和……一样……”。
课堂检测 Class Test
一、选词填空（用方框中所给单词的适当形式填空）
( narrow, man-made, miracle, junior, discussion, villager, lead )
1. The road is too ______ for two cars to pass at the same time.
2. The Great Wall is a ______ wonder of the world.
3. It was a ______ that no one was hurt in the accident.
4. My brother is a ______ high school student.
5. We had a heated ______ about the plan in class.
6. The ______ live a simple life in the mountain village.
7. He ______ a happy life in the countryside.
二、解题思路
第1题：句意为“路太狭了，两辆车无法同时通过”，修饰路用形容词，填narrow。
第2题：句意为“长城是世界上的人造奇观”，修饰名词用形容词，填man-made。
第3题：句意为“没人在事故中受伤真是个奇迹”，主语用名词，填miracle。
第4题：句意为“我哥哥是一名初中生”，修饰名词用形容词，填junior。
第5题：句意为“我们在课上对计划进行了热烈讨论”，宾语用名词，填discussion。
第6题：句意为“村民们在山村过着简单的生活”，主语用名词复数，填villagers。
第7题：句意为“他在乡村过着幸福的生活”，谓语用动词第三人称单数，填leads。
【判断技巧】选词填空三步法
第一步：通读全句，理解句意；第二步：判断空格所需词性（名词/动词/形容词）及单复数；第三步：从方框中选择合适单词并变形。注意第三人称单数动词加-s。
课后作业 Homework
1. 3c 做笔记 Make Notes
比较你小学时和现在的变化，在下列方面做笔记。
home: ________________________________________
school: ________________________________________
study: ________________________________________
neighbourhood: ________________________________________
transport: ________________________________________
environment: ________________________________________
2. 3d 写作任务 Writing Task
根据3c的笔记，写一篇短文，描述你自己从小学到现在的变化。
要求：
① 至少写三个方面的变化（如 home, school, study）；
② 运用 be different from / be the same as 等学过的短语；
③ 结尾写一件没有改变的事情（stay the same）；
④ 写作建议：用“I used to…”或“Now…”的结构对比过去和现在；每段只谈一个方面的变化。
我的写作：
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
【写作指导】如何写“我的变化”类短文
结构建议：开头——用“Now that I am older, my life has changed a lot.”引出话题；中间——分段写三个方面的变化，每段用“I used to…, but now…”对比；结尾——写一件没有改变的事，用“One thing that stays the same is…”。推荐词汇：used to, be different from, the same as, stay the same, change, aspect。
参考答案 Reference Answers
1. 词汇预习表答案
1. rail → ail
2. narrow → arrow
3. villager → illager
4. the Olympics → he Olympics
5. lead → ead
6. man-made → an-made
7. miracle → iracle
8. junior → unior
9. flat → lat
10. discussion → iscussion
11. aspect → spect
12. Mombasa → ombasa
2. 短语预习答案
1. 保持不变 → stay the same
2. 作为……而闻名 → be known as
3. 因……而闻名 → be known for
4. 和……不同 → be different from
5. 和……一样 → be the same as
3. 2a 复合词答案
1. greenhouse = green + house (温室)
2. sandstorm = sand + storm (沙尘暴)
3. highway = high + way (公路;高速公路)
4. farmland = farm + land (农田)
5. railway = rail + way (铁路)
4. 2b 选词填空答案
1. wide
2. bridge
3. capital
4. corn
5. product
5. 2c 短文填空答案
(1) sandy (2) bushes (3) sandstorms (4) soil (5) government (6) result
6. 3a 阅读回答答案
1. Saihanba is located in northern China.
2. Before the workers came, the land was sandy. It was covered with bushes and hit by terrible sandstorms every spring.
3. The government decided to change Saihanba in 1962.
4. They came to plant trees and worked hard for many years.
5. Today, Saihanba is known as "the green miracle" because the land has turned from a desert into a green forest.
7. 3b 对比表格参考答案
Home: Primary School — lived in a small flat with my parents; Now — moved to a bigger house with a garden.
School: Primary School — the school was small and old; Now — I go to a big junior high school with modern facilities.
Study: Primary School — had few subjects and little homework; Now — have more subjects and study harder.
8. 语言点练习答案
语言点一：1. C (is known as) 2. B (is known for)
语言点二：1. B (different from) 2. B (the same as)
9. 课堂检测答案
1. narrow
2. man-made
3. miracle
4. junior
5. discussion
6. villagers
7. leads
10. 3d 写作参考范文
Now that I am older, my life has changed a lot. First, my home is different from before. I used to live in a small flat, but now I live in a bigger house with a beautiful garden. Second, my school has changed too. My primary school was small and old, but my junior high school is big and modern. Third, the way I study is different from primary school. I used to have little homework, but now I have more subjects and study harder. However, one thing that stays the same — I still love reading books just like I did before.

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