内容正文:
2026暑假人教PEP版小学英语四年级上册Unit 4《Helping in the community》预习
一、知识点梳理
1. 核心词汇(音标、词性&翻译、知识点)
单词
音标
词性&翻译
知识点
help
/help/
v./n. 帮助;帮忙
常见搭配:help sb(帮助某人)、help in the community(在社区帮忙)
community
/kəˈmjuːnəti/
n. 社区;社群
复数形式为communities,如live in a nice community(住在一个好社区)
helpful
/ˈhelpfl/
adj. 有帮助的;乐于助人的
由help+形容词后缀-ful构成,如a helpful boy(一个乐于助人的男孩)
clean
/kliːn/
v. 打扫;清洁;adj. 干净的
作动词时搭配:clean the park(打扫公园);作形容词时如clean streets(干净的街道)
sweep
/swiːp/
v. 扫;打扫
过去式为swept,固定搭配:sweep the streets(扫街道)
water
/ˈwɔːtə(r)/
v. 给……浇水;n. 水
作动词时搭配:water the trees(给树浇水);作名词时不可数,如a glass of water(一杯水)
pick
/pɪk/
v. 摘;采集
固定搭配:pick up(捡起;拾起)、pick flowers(摘花)
trash
/træʃ/
n. 垃圾;废物
不可数名词,同义替换:rubbish,固定搭配:pick up trash(捡垃圾)
park
/pɑːk/
n. 公园;v. 停车
作名词时如a beautiful park(一个美丽的公园);作动词时如park the car(停车)
street
/striːt/
n. 街道;马路
如a busy street(一条繁忙的街道)
tree
/triː/
n. 树;树木
如a tall tree(一棵高树)
flower
/ˈflaʊə(r)/
n. 花;花朵
如red flowers(红花)
can
/kæn/
modal v. 能;会;可以
后接动词原形,表能力或请求,如I can clean the park(我会打扫公园)
often
/ˈɒfn/
adv. 经常;常常
表动作发生的频率,常用于一般现在时,如I often help in the community(我经常在社区帮忙)
sometimes
/ˈsʌmtaɪmz/
adv. 有时;偶尔
表动作偶尔发生,如Sometimes I pick up trash(有时我捡垃圾)
2. 重点短语
1. help in the community — 在社区帮忙
2. helpful in the community — 在社区乐于助人
3. clean the park — 打扫公园
4. sweep the streets — 扫街道
5. water the trees — 给树浇水
6. pick up trash — 捡垃圾
7. pick flowers — 摘花
8. a beautiful park — 一个美丽的公园
9. a busy street — 一条繁忙的街道
10. a tall tree — 一棵高树
11. red flowers — 红花
3. 单元重难点
· 重点:掌握字母组合o-e的发音;熟练运用询问及描述社区帮忙行为的句型;理解并掌握情态动词can的用法(表“能、会”,后接动词原形)。
· 难点:区分“clean”作动词和形容词的用法;正确运用“often”“sometimes”等频率副词;掌握“pick up”“water”等固定搭配的语境使用。
4. 核心句型
1. —What can you do in the community? —I can clean the park.(询问在社区能做的事,答句说明具体能力)
2. —Can you pick up trash? —Yes, I can. / No, I can’t.(询问是否会做某事,答句给出肯定/否定回答)
3. I often help my mom clean the park.(描述经常做的社区帮忙行为,用频率副词often)
4. She is helpful in the community.(描述在社区乐于助人,用形容词helpful)
二、习题闯关(共30题,60分)
1. 根据首字母或中文提示补全单词(10题,每题1分,共10分)
1. I can h______(帮助)in the community.
2. She is h______(乐于助人的)in the community.
3. Let’s c______(打扫)the park together.
4. He can s______(扫)the streets every day.
5. I often w______(给……浇水)the trees.
6. Can you p______(捡)up trash?
7. Don’t p______(摘)flowers in the park.
8. There is a b______(美丽的)park near my home.
9. The s______(街道)is very busy.
10. I often help in the c______(社区).
2. 英汉互译(10题,每题2分,共20分)
1. 在社区帮忙 ______________
2. helpful in the community ______________
3. 打扫公园 ______________
4. sweep the streets ______________
5. 给树浇水 ______________
6. pick up trash ______________
7. 摘花 ______________
8. a beautiful park ______________
9. 一条繁忙的街道 ______________
10. a tall tree ______________
3. 单项选择(5题,每题2分,共10分)
( ) 1. —What can you do in the community? —______
A. I like cleaning.
B. I can clean the park.
C. I am helpful.
( ) 2. —Can you pick up trash? —______
A. Yes, I am.
B. No, I can’t.
C. Yes, I do.
( ) 3. I often ______ my mom clean the park.
A. help
B. helps
C. helping
( ) 4. She can ______ the trees every day.
A. water
B. waters
C. watering
( ) 5. —Is she helpful in the community? —______
A. Yes, she can.
B. No, she isn’t.
C. Yes, she does.
4. 句型转换(5题,每题2分,共10分)
1. I can clean the park.(改为一般疑问句)
2. She can pick up trash.(改为否定句)
3. I often help my mom clean the park.(对划线部分提问)
4. Can you sweep the streets?(作肯定回答)
5. He is helpful in the community.(改为一般疑问句)
参考答案
1. 根据首字母或中文提示补全单词
1. help
2. helpful
3. clean
4. sweep
5. water
6. pick
7. pick
8. beautiful
9. street
10. community
2. 英汉互译
1. help in the community
2. 在社区乐于助人
3. clean the park
4. 扫街道
5. water the trees
6. 捡垃圾
7. pick flowers
8. 一个美丽的公园
9. a busy street
10. 一棵高树
3. 单项选择
1. B
2. B
3. A
4. A
5. B
4. 句型转换
1. Can you clean the park?
2. She can’t pick up trash.
3. What do you often help your mom do?
4. Yes, I can.
5. Is he helpful in the community?
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