2026年华东师大版一课一练五年级英语上册沪教版五四制第100页答案
(
) 7. The light bulb is one of the greatest
that changed people’s lives a lot.
A. invent
B. invention
C. inventions
(
) 8. Lily was
why the sky looks blue, so she asked her science teacher for help.
A. find out
B. think about
C. curious about
(
) 9. We can
old clothes by making them into small bags instead of throwing them away.
A. reduce
B. reuse
C. recycle
(
) 10. My sister
be afraid of using the computer, but now she can use them to do her homework easily.
A. used to
B. is used to
C. was used to

答案

7. C 8. C 9. B 10. A

解析

【分析】
首先梳理每道题的解题思路:第7题需掌握“one of”的结构要求;第8题要结合语境辨析固定短语;第9题需区分动词词义;第10题要辨析“used to”相关短语的用法,通过语境匹配正确选项。
【解析】
7. 固定结构“one of + 形容词最高级 + 可数名词复数”,选项中invent是动词,invention是名词单数,其复数形式为inventions,符合结构要求,故选C。
8. 固定短语be curious about意为“对……好奇”,契合“莉莉向老师提问天空为何是蓝色”的语境;find out(查明)、think about(考虑)不符合语境,故选C。
9. reuse意为“重复使用”,此处指将旧衣服做成小袋子重复利用;reduce(减少)、recycle(回收再加工)不符合语境,故选B。
10. used to do sth表示“过去常常做某事(现在已不做)”,匹配“过去怕用电脑,现在能轻松使用”的时间对比语境;be used to意为“习惯于”,不符合语境,故选A。
【答案】
7.C 8.C 9.B 10.A
【知识点】
词汇辨析、固定搭配、名词复数用法
【点评】
本题考查初中英语核心基础知识点,涵盖词汇、固定短语及常用结构,难度较低,学生只要掌握基础内容即可正确作答。
【难度系数】
0.8
Ⅳ. Read and rewrite(读一读,根据要求完成句子)
1. Reduce, reuse and recycle. We can make our life greener.(合并为一句,用to连接)
We can reduce, reuse and recycle to make our life greener.

2. The super small computer is very small. It is like a grain of salt.(用as...as合并为一句)
The super small computer is as small as a grain of salt.

3. We should reuse old books to save trees.(用It’s a good way to...改写)
It’s a good way to reuse old books to save trees.

4. He used to be nervous to speak in front of the class.(改为否定句)
He didn’t use/used not to be nervous to speak in front of the class.

5. I delete a file. It goes to the Recycle Bin.(用When连接两个句子)
When I delete a file, it goes to the Recycle Bin.

答案

1. We can reduce, reuse and recycle to make our life greener.
2. The super small computer is as small as a grain of salt.
3. It’s a good way to reuse old books to save trees.
4. He didn’t use/used not to be nervous to speak in front of the class.
5. When I delete a file, it goes to the Recycle Bin.
重点详解:
4. “used to”表示“过去常常做某事(现在已不做)”,其否定形式有两种:第一种是didn’t use to(口语和书面语均常用,“use”此处为动词原形,因前面有助动词“didn’t”),如答案中的“He didn’t use to be nervous ...”;第二种是used not to(更正式的书面表达,“used”为情态动词用法),如“He used not to be nervous ...”。

解析

【分析】
1. 第1题要求用to连接句子,需用不定式表目的,前半句是实现后半句目的的方式,将“reduce, reuse and recycle”作为方式,用to引出目的“make our life greener”,合并成一句。
2. 第2题要求用as...as合并,该结构用于同级比较,形容词用原级,原句两部分都描述“small”,将两者用as small as连接,构成同级比较句。
3. 第3题要求用It’s a good way to...改写,该结构中it作形式主语,真正主语是后面的不定式短语,原句“reuse old books to save trees”可直接作为不定式内容,替换结构。
4. 第4题要求改为否定句,“used to”表过去常常,否定形式有两种:didn’t use to(助动词后用动词原形use)或used not to(直接在used后加not),据此改写。
5. 第5题要求用When连接,When引导时间状语从句,从句用一般现在时,主句用一般现在时,调整为“从句+主句”的语序。
【解析】
1. 不定式表目的,合并为:We can reduce, reuse and recycle to make our life greener.
2. 运用as+形容词原级+as的同级比较结构,合并为:The super small computer is as small as a grain of salt.
3. 套用It’s a good way to...结构,改写为:It’s a good way to reuse old books to save trees.
4. “used to”的否定形式有两种,改写为:He didn’t use/used not to be nervous to speak in front of the class.
5. When引导时间状语从句,从句在前主句在后,改写为:When I delete a file, it goes to the Recycle Bin.
【答案】
1. We can reduce, reuse and recycle to make our life greener.
2. The super small computer is as small as a grain of salt.
3. It’s a good way to reuse old books to save trees.
4. He didn’t use/used not to be nervous to speak in front of the class.
5. When I delete a file, it goes to the Recycle Bin.
【知识点】
句型转换、不定式用法、as...as结构
【点评】
本题考查英语基础句型转换,涵盖不定式表目的、同级比较、used to的否定、时间状语从句等核心知识点,是巩固英语句式运用的基础练习,需掌握不同结构的用法规则。
【难度系数】
0.3
Ⅴ. Read and finish the tasks(Lulu 是位特殊的老师。读一读她的故事,完成任务)
A special “teacher”

In a small village, there is a “teacher” named Lulu—but Lulu is not a human. It’s a robot! Lulu helps students learn science. It can show videos of plants growing and explain why the moon goes around the earth.
Before Lulu came, the village students knew little about science. They had no computers or books about outer space. But Lulu changed that. It has a screen and a speaker. Every day, it tells students stories about great scientists, like Qian Xuesen and Tu Youyou. It also teaches them to protect the earth—for example, to pick up litter and use cloth bags.
The students love Lulu. They say, “Lulu is our good friend. It helps us see a bigger world!”
Task 1: Read and judge(判断下列句子与短文内容是否相符,相符的填 T,不符的填 F)
(
F
) 1. Lulu is a student in the small village.
(
T
) 2. Lulu can show videos of plants growing.
(
F
) 3. Before Lulu came, the students had many science books.
(
T
) 4. Lulu tells students stories about great scientists.
(
T
) 5. The students think Lulu is their good friend.
Task 2: Read and answer(根据短文内容回答问题)
1. What does Lulu help students learn?
It helps students learn science.

2. What does Lulu teach students to do to protect the earth?
It teaches them to pick up litter and use cloth bags.

答案

Task 1:
1. F
2. T
3. F
4. T
5. T
Task 2:
1. It helps students learn science.
2. It teaches them to pick up litter and use cloth bags.

解析

【分析】
本题是英语阅读理解题,包含判断正误和回答问题两类任务。解题思路为:①对于判断正误题,需先明确每个句子的关键信息,再回到原文定位对应内容,对比信息是否一致,相符填T,不符填F;②对于回答问题,需根据题干关键词在原文中找到相关语句,提取准确信息作答。
【解析】
Task 1(判断正误):
1. 题干意为“Lulu是小村庄里的一名学生”,原文第一段明确说明Lulu是robot(机器人)老师,并非学生,故填F。
2. 题干意为“Lulu能展示植物生长的视频”,原文第一段提到“It can show videos of plants growing”,与题干相符,故填T。
3. 题干意为“在Lulu来之前,学生有很多科学书”,原文第二段指出“Before Lulu came, the village students knew little about science. They had no computers or books about outer space”,说明没有相关书籍,故填F。
4. 题干意为“Lulu给学生讲伟大科学家的故事”,原文第二段提到“Every day, it tells students stories about great scientists”,与题干相符,故填T。
5. 题干意为“学生认为Lulu是他们的好朋友”,原文第三段学生的话“Lulu is our good friend”可佐证,故填T。
Task 2(回答问题):
1. 问题问Lulu帮助学生学什么,原文第一段直接给出答案“It helps students learn science”。
2. 问题问Lulu教学生如何保护地球,原文第二段举例说明“to pick up litter and use cloth bags”,即答案为“It teaches them to pick up litter and use cloth bags”。
【答案】
Task 1:
1. F
2. T
3. F
4. T
5. T
Task 2:
1. It helps students learn science.
2. It teaches them to pick up litter and use cloth bags.
【知识点】
英语阅读理解、判断正误、信息提取
【点评】
本题围绕短文内容设置基础题型,考查学生对英语文本的理解与信息定位能力,题型常规,适合巩固英语阅读基础。
【难度系数】
0.7