内容正文:
Unit 6 Changing for the seasons(知识清单+典型例题+分层练习)
英语人教PEP版四年级上册(新教材)
内容(音标/含义)
例句
重点单词
season /ˈsiːzn/(季节)
There are four seasons in a year.(一年有四个季节。)
spring /sprɪŋ/(春天)
Spring is green with flowers.(春天花开草绿。)
summer /ˈsʌmə(r)/(夏天)
Summer is hot and sunny.(夏天炎热晴朗。)
autumn /ˈɔːtəm/(秋天)
Autumn leaves are yellow and red.(秋天的叶子黄红相间。)
winter /ˈwɪntə(r)/(冬天)
Winter brings snow and cold.(冬天带来雪和寒冷。)
flower /ˈflaʊə(r)/(花)
Flowers bloom in spring.(春天花儿绽放。)
leaf /liːf/(叶子,复数:leaves)
The leaf falls in autumn.(叶子在秋天落下。)
plant /plɑːnt/(种植)
We plant trees in spring.(我们春天种树。)
pick /pɪk/(采摘)
We pick apples in autumn.(我们秋天摘苹果。)
skate /skeɪt/(滑冰)
I skate on the ice in winter.(冬天我在冰上滑冰。)
bloom /bluːm/(开花)
Roses bloom in summer.(玫瑰在夏天开花。)
change /tʃeɪndʒ/(变化)
The weather changes with seasons.(天气随季节变化。)
sunny /ˈsʌni/(晴朗的)
Summer days are sunny.(夏天阳光明媚。)
windy /ˈwɪndi/(多风的)
Autumn is often windy.(秋天常刮风。)
harvest /ˈhɑːvɪst/(收获)
Farmers have a good harvest in autumn.(农民秋天丰收。)
重点短语
fly kites /flaɪ kaɪts/(放风筝)
We fly kites in spring.(我们春天放风筝。)
go swimming /ɡəʊ ˈswɪmɪŋ/(去游泳)
Kids go swimming in summer.(孩子们夏天去游泳。)
pick apples /pɪk ˈæplz/(摘苹果)
Families pick apples in autumn.(家家户户秋天摘苹果。)
make snowmen /meɪk ˈsnəʊmən/(堆雪人)
We make snowmen in winter.(我们冬天堆雪人。)
plant trees /plɑːnt triːz/(种树)
People plant trees in spring.(人们春天种树。)
重点句型
询问季节喜好:Which season do you like best? I like... best.(你最喜欢哪个季节?我最喜欢……)
—Which season do you like best? —I like spring best.
描述季节特征:In + 季节, it is + 天气形容词. There are + 自然景物.(在……,天气……,有……)
In autumn, it is cool. There are red leaves.
描述季节活动:In + 季节, we + 动词短语.(在……,我们……)
In winter, we wear warm clothes.
表达变化:The + 事物 + changes from... to...(……从……变成……)
The tree changes from green to yellow.
(一)名词单复数(重点:不规则变化)
1. 规则变化:
· 一般加-s:season→seasons;flower→flowers;tree→trees。
· 以“s, x, sh, ch”结尾加-es:watch→watches;brush→brushes(季节相关名词中较少见)。
2. 不规则变化(核心):
· leaf→leaves(叶子):Autumn leaves fall down.(秋天的叶子落下。)
· life→lives(生命):Plants have lives in spring.(春天植物充满生机。)
· child→children(孩子):Children play with leaves in autumn.(孩子们秋天玩叶子。)
3. 用法注意:
· 单数表示“一个”:A leaf turns yellow.(一片叶子变黄了。)
· 复数表示“多个”:Leaves cover the ground.(叶子覆盖大地。)
(二)一般现在时(描述季节规律)
1. 核心用法:表示每年重复的季节特征或活动(习惯性、规律性)。
例:Spring comes in March.(春天三月到来。)We pick apples every autumn.(我们每年秋天摘苹果。)
2. 动词形式变化:
· 主语是第三人称单数(it, spring, the tree等),动词用三单形式:
The tree blooms in spring.(树在春天开花。)It snows in winter.(冬天下雪。)
· 其他主语用原形:We plant trees in spring.(我们春天种树。)
3. 时间状语标志:every year(每年)、often(经常)、usually(通常)等:
We usually fly kites every spring.(我们通常每年春天放风筝。)
(三)介词in/on/at与季节、时间的搭配
1. in + 季节/月份/泛指时间:
· in spring(在春天);in summer(在夏天);in September(在九月);in the morning(在早上)。
例:Flowers bloom in spring.(花儿在春天开放。)
2. on + 具体日期/星期:
· on March 12th(在3月12日);on Sunday(在周日)(与季节结合时表具体某天)。
例:We plant trees on March 12th.(我们3月12日种树。)
3. at + 具体时刻:
· at 7 o'clock(在7点)(与季节活动结合)。
例:We go swimming at 4 p.m. in summer.(夏天我们下午4点去游泳。)
(四)形容词比较级(描述季节变化差异)
1. 构成规则:
· 一般加-er:warm→warmer(更温暖);cool→cooler(更凉爽)。
例:Spring is warmer than winter.(春天比冬天暖和。)
· 以“e”结尾加-r:nice→nicer(更宜人);fine→finer(更晴朗)。
例:Autumn is nicer than summer for picnics.(秋天比夏天更适合野餐。)
· 重读闭音节双写尾字母加-er:hot→hotter(更热);big→bigger(更大)。
例:July is hotter than June.(七月比六月热。)
2. 用法:用“than”连接比较对象,表两者差异:
Winter is colder than autumn.(冬天比秋天冷。)
(五)字母组合“ea”的发音
· 发/iː/音:season /ˈsiːzn/(季节);leaf /liːf/(叶子);meet /miːt/(遇见)。
· 发/e/音:weather /ˈweðə(r)/(天气);bread /bred/(面包)(需对比记忆)。
1. 名词单复数(不规则变化)
题目:Look at the ______ on the ground. They are yellow.
A. leaf B. leafs C. leaves
【答案】C
【解析】由“They are”可知主语为复数,leaf的复数是不规则变化“leaves”,故选C。
【同步练习】
1. We can see many ______ in the garden in spring.
A. flower B. flowers C. floweres
2. The ______ are playing with snow in winter.
A. child B. childs C. children
3. There are two ______ on the tree.(life)
A. life B. lifes C. lives
2. 一般现在时(第三人称单数)
题目:The tree ______ green in spring.
A. turn B. turns C. turning
【答案】B
【解析】主语“the tree”是第三人称单数,一般现在时中动词用“turns”,故选B。
【同步练习】
1. Summer ______ hot and sunny every year.
A. is B. are C. be
2. He ______ apples with his family in autumn.
A. pick B. picks C. picking
3. It often ______ in spring here.
A. rain B. rains C. raining
3. 介词in/on/at的搭配
题目:We go swimming ______ summer.
A. in B. on C. at
【答案】A
【解析】“在季节前”用介词“in”,“in summer”表示“在夏天”,故选A。
【同步练习】
1. They plant trees ______ March 12th.
A. in B. on C. at
2. We have a picnic ______ the morning of Sunday.
A. in B. on C. at
3. The sun rises ______ 6 o'clock in summer.
A. in B. on C. at
4. 形容词比较级
题目:Winter is ______ than autumn.
A. cold B. colder C. coldest
【答案】B
【解析】由“than”可知用比较级,cold的比较级是“colder”,故选B。
【同步练习】
1. Spring is ______ than winter.(warm)
A. warm B. warmer C. warmest
2. Summer is ______ than spring in Wuhan.(hot)
A. hot B. hotter C. hottest
3. Autumn is ______ than summer.(nice)
A. nice B. nicer C. nicest
5. “ea”发音
题目:下列单词中“ea”发/iː/的是______
A. weather B. bread C. season
【答案】C
【解析】“season”中“ea”发/iː/;A、B中“ea”发/e/,故选C。
【同步练习】
1. 发音不同的一组是______
A. leaf;season B. weather;bread C. meet;sweater
2. “leaf”中“ea”的发音是______
A. /e/ B. /iː/ C. /æ/
3. 下列单词“ea”发音一致的是______
A. eat;weather B. tea;leaf C. head;season
基础巩固
1. 单词拼写(根据中文写英文)
(1)季节 ______
(2)春天 ______
(3)叶子(复数) ______
(4)收获 ______
(5)滑冰 ______
2. 单项选择(选择最佳答案)
(1)There are four ______ in a year.
A. season B. seasons C. seasones
(2)______ do you like best? I like autumn best.
A. Which season B. What season C. How season
(3)We ______ kites in spring every year.
A. fly B. flies C. flying
(4)Summer is ______ than spring.
A. hot B. hotter C. hottest
(5)They go to the park ______ Sunday.
A. in B. on C. at
3. 句型转换(按要求改写句子)
(1)I like spring best.(对划线部分提问)
(2)The leaves are yellow in autumn.(改为一般疑问句)
(3)We pick apples in autumn.(改为第三人称单数句)
(4)Spring is warm.(改为比较级句子,than winter)
(5)It snows in winter.(改为现在进行时)
能力提升(常见题型)
1. 完形填空(阅读短文,选择最佳答案)
There are four seasons in a year. I like autumn ______(1). In autumn, the weather ______(2) cool and windy. The ______(3) turn red and yellow. My family and I often ______(4) apples on the farm. We ______(5) happy.
(1)A. good B. best C. better
(2)A. is B. are C. be
(3)A. leaf B. leafs C. leaves
(4)A. pick B. picks C. picking
(5)A. am B. is C. are
2. 句子排序(将下列句子排成通顺的对话)
( )I like summer best. I can go swimming.
( )Which season do you like best?
( )What about you?
( )I like spring best. I can fly kites.
( )Because I like the warm sun.
3. 短文填空(根据上下文填单词,每空一词)
It is ______(1) now. The weather is getting ______(2)(cool). The ______(3) on the trees are turning yellow. Farmers are busy with ______(4). Children like to play with the fallen ______(5).
4. 句子匹配(左边为问句,右边为答句,连线)
(1)Which season has snow? A. In spring.
(2)When do flowers bloom? B. Winter.
(3)What do you do in autumn? C. Because it's warm.
(4)Why do you like spring? D. Yes, it is.
(5)Is summer hotter than spring? E. I pick apples.
5. 选择合适的句子补全对话(5个空,5个选项)
A: Hello, Tom! ______(1)
B: I like autumn best.
A: ______(2)
B: Because the leaves are beautiful.
A: ______(3)
B: I often go for a walk with my dog.
A: ______(4)
B: It's cool and windy.
A: ______(5)
B: Yes, let's go together tomorrow.
选项:
A. What's the weather like in autumn?
B. Which season do you like best?
C. Do you want to go for a walk tomorrow?
D. Why do you like it?
E. What do you often do in autumn?
思维拓展
1. 阅读理解(阅读短文,完成表格)
Hello, I'm Amy. I live in a village. In spring, it's warm. We plant vegetables in the garden. Summer is hot. I help my mom water the plants every morning. Autumn is my favourite season. The crops are ready. We harvest corn and tomatoes. Winter is cold. We stay at home and make dumplings. I love all seasons!
季节
天气
主要活动
春天
( )
( )
夏天
( )
( )
秋天
—
( )
冬天
( )
( )
2. 书面表达(新题型:季节变化记录)
以“Seasons Around Me”为题,用表格+句子形式记录你身边的季节变化(至少3个季节),表格包含“季节、植物变化、人们活动”,并配2句总结。
季节
植物变化
人们活动
总结:____________________________________
答案与解析
同步练习答案与解析
(一)名词单复数(不规则变化)
1. 【答案】B
【解析】“many”后接复数,flower的复数是规则变化“flowers”,故选B。
2. 【答案】C
【解析】由“are”可知主语为复数,child的复数是“children”,故选C。
3. 【答案】C
【解析】life的复数是不规则变化“lives”,故选C。
(二)一般现在时(第三人称单数)
1. 【答案】A
【解析】主语“summer”是第三人称单数,be动词用“is”,故选A。
2. 【答案】B
【解析】主语“he”是第三人称单数,动词“pick”用三单形式“picks”,故选B。
3. 【答案】B
【解析】主语“it”是第三人称单数,动词“rain”用三单形式“rains”,故选B。
(三)介词in/on/at的搭配
1. 【答案】B
【解析】“具体日期前”用介词“on”,“March 12th”是具体日期,故选B。
2. 【答案】B
【解析】“具体某天的早上”用介词“on”,故选B。
3. 【答案】C
【解析】“具体时刻前”用介词“at”,“6 o'clock”是具体时刻,故选C。
(四)形容词比较级
1. 【答案】B
【解析】由“than”可知用比较级,warm的比较级是“warmer”,故选B。
2. 【答案】B
【解析】由“than”可知用比较级,hot的比较级是“hotter”,故选B。
3. 【答案】B
【解析】由“than”可知用比较级,nice的比较级是“nicer”,故选B。
(五)“ea”发音
1. 【答案】C
【解析】A中“leaf”“season”的“ea”均发/iː/;B中“weather”“bread”的“ea”均发/e/;C中“meet”发/iː/,“sweater”发/e/,故选C。
2. 【答案】B
【解析】“leaf”中“ea”发/iː/,故选B。
3. 【答案】B
【解析】B中“tea”“leaf”的“ea”均发/iː/;A中“eat”发/iː/,“weather”发/e/;C中“head”发/e/,“season”发/iː/,故选B。
分层练习答案与解析
基础巩固
1. 单词拼写
(1)【答案】season
(2)【答案】spring
(3)【答案】leaves
(4)【答案】harvest
(5)【答案】skate
2. 单项选择
(1)【答案】B
【解析】“four”后接复数,season的复数是“seasons”,故选B。
(2)【答案】A
【解析】询问“最喜欢的季节”用“Which season”,故选A。
(3)【答案】A
【解析】主语“we”是复数,一般现在时中动词用原形“fly”,故选A。
(4)【答案】B
【解析】由“than”可知用比较级,hot的比较级是“hotter”,故选B。
(5)【答案】B
【解析】“在星期前”用介词“on”,故选B。
3. 句型转换
(1)【答案】Which season do you like best?
【解析】对“spring”(季节)提问用“Which season”,借助助动词“do”。
(2)【答案】Are the leaves yellow in autumn?
【解析】含有be动词的句子变一般疑问句,将“are”提到句首。
(3)【答案】He picks apples in autumn.
【解析】主语改为“he”(第三人称单数),动词“pick”变“picks”。
(4)【答案】Spring is warmer than winter.
【解析】比较级结构为“主语 + 比较级 + than + 比较对象”。
(5)【答案】It is snowing in winter.
【解析】现在进行时结构为“is + snowing”。
能力提升
1. 完形填空
(1)【答案】B
【解析】“like... best”表示“最喜欢……”,符合语境,故选B。
(2)【答案】A
【解析】主语“the weather”是单数,be动词用“is”,故选A。
(3)【答案】C
【解析】由“turn”可知主语为复数,leaf的复数是“leaves”,故选C。
(4)【答案】A
【解析】主语“my family and I”是复数,动词用原形“pick”,故选A。
(5)【答案】C
【解析】主语“we”是复数,be动词用“are”,故选C。
2. 句子排序
【答案】2;1;4;3;5
【解析】逻辑:问喜好→答喜好→问对方→答喜好→说明原因。
3. 短文填空
(1)【答案】autumn
【解析】由“yellow leaves”可知是“秋天”,故填“autumn”。
(2)【答案】cooler
【解析】“getting”后接比较级,cool的比较级是“cooler”。
(3)【答案】leaves
【解析】“树上的叶子”用复数“leaves”。
(4)【答案】harvest
【解析】农民秋天忙于“收获”,故填“harvest”。
(5)【答案】leaves
【解析】“落叶”用复数“leaves”。
4. 句子匹配
(1)【答案】B
【解析】“哪个季节有雪”对应“冬天”,故选B。
(2)【答案】A
【解析】“花儿何时开放”对应“春天”,故选A。
(3)【答案】E
【解析】“秋天做什么”对应“摘苹果”,故选E。
(4)【答案】C
【解析】“为什么喜欢春天”对应“因为温暖”,故选C。
(5)【答案】D
【解析】一般疑问句用“yes”回答,故选D。
5. 补全对话
(1)【答案】B
【解析】答句说“最喜欢秋天”,问句用“Which season do you like best?”,故选B。
(2)【答案】D
【解析】答句说“因为叶子很美”,问句用“Why do you like it?”,故选D。
(3)【答案】E
【解析】答句说“经常散步”,问句用“What do you often do in autumn?”,故选E。
(4)【答案】A
【解析】答句说“凉爽多风”,问句用“What's the weather like in autumn?”,故选A。
(5)【答案】C
【解析】答句说“明天一起去”,问句用“Do you want to go for a walk tomorrow?”,故选C。
思维拓展
1. 阅读理解
季节
天气
主要活动
春天
warm
plant vegetables
夏天
hot
water the plants
秋天
—
harvest corn and tomatoes
冬天
cold
stay at home and make dumplings
【解析】根据短文内容,春天温暖,种蔬菜;夏天炎热,浇植物;秋天收获玉米和西红柿;冬天寒冷,在家包饺子。
2. 书面表达(示例)
季节
植物变化
人们活动
spring
flowers bloom
fly kites
summer
leaves turn green
go swimming
autumn
leaves turn yellow
pick apples
总结:Seasons change with beautiful views. People do different activities in each season.
【解析】表格清晰记录季节、植物变化和活动,总结句概括季节变化和活动差异,符合要求。
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