Unit 4 Digital life Understanding ideas课文要点全解（含答案）2025-2026学年外研版（2024）英语八年级上册

Unit 4 Understanding ideas 课文要点全解
1. I’ve also learnt a great deal via online learning apps! 我还通过在线学习应用程序学到了很多！
(1)a great deal 充裕，丰富
a great deal of 许多的，大量的（后接不可数名词）
I got a great deal by working hard.
我通过努力工作得到了很多。
We see them a great deal.
我们经常见到他们。
They spent a great deal of money.
他们花了大量的钱。
拓展 a lot of= lots of 许多（后接可数名词复数或不可数名词）
plenty of 许多（后接可数名词复数或不可数名词）
a number of 大量的（后接可数名词复数）
We have a lot of/plenty of time to finish the work. 我们有大量的时间完成这项工作。
A lot of/Plenty of/A number of students in our school are from Shanghai.
我们学校有很多学生来自上海。
(2)via [介词] 通过，凭借
I heard about the sale via Jane.
我从简那里听说了这次大减价。
The news programme came to us via satellite. 新闻节目是通过卫星传送到我们这里来的。
2 The app even let me check my daily progress.这个应用程序甚至能让我查看我的日常进步情况。
progress
①[不及物动词]进步；进展
Things are progressing well.
事情进展顺利。
Work on the new road is progressing slowly. 新路的修建工作在缓慢进行。
②[不可数名词]进步，进展
make progress(in...) (在……方面) 取得进步
You have made progress in your English.
你的英语已经取得进步了。
(2025·黑龙江大学附属中学)
Chinese scientists have made great______ in space technology recently.
A.information B. progress
C.knowledge
解析：我们可用“固定搭配法”解答此题。
information“信息”；progress “进步”；
knowledge“知识”。句意为中国科学家最近在航天技术方面取得了巨大进步。
答案 B
3 After all,the offline world is also exciting, right 毕竟，离线的世界也很精彩，不是吗？
offline（形容词&副词）未联网的，不在线的
For offline orders,call this number, please.
离线订货请拨打这个号码。(形容词)
I work offline most of the day.
我一天里大多数情况下都在未联网的状态下工作。(副词)
Nowadays,instead of..., you can simply... 现今不用……你可以只……
(1)nowadays （副词）现今，现时；现在；目前
通常用于一般现在时的句子中，且多用于句首或句末作状语。
4 Nowadays,children have more pocket money.
如今，孩子们有更多的零花钱。
I hardly ever see him nowadays.
如今我很少见到他。
(2)simply （副词）只是，仅仅；不过；只要
相当于only。形容词形式为simple，意为“简单的，容易的”。
There is no need to get angry.I’m simply asking you to help me. 不必生气。我只不过是请你帮我一下。
(2025·黑龙江牡丹江中学)
Now you don’t need to wait in line to buy tickets,you can ______ book (预订) them online. It’s quite convenient.
A.simply B. suddenly C. carefully
解析：我们可用“联系上下文法”解答此题。simply“仅仅”；suddenly “突然”；carefully “仔细地”。由上文的“不必排队买票”和下文的“在网上预订它们”可知，此处表示“仅仅在网上预订它们即可”，故选 simply。
答案 A
5Technology saves me time because...科技为我节省了时间，因为……
save
①（动词）节省；节约
Please save water.请节约用水。
We should try to save time.
我们应该设法节省时间。
②（及物动词）救；救助
后接名词或代词作宾语。
save one’s life 挽救某人的生命
save sb/sth from...从……中救起某人/某物
He saved the boy’s life.
他拯救了那个男孩的生命。
The policeman saved the children from the water.
那名警察把孩子们从水中救了出来。
③（动词）储蓄；积攒
He works late every night to save money.
为了攒钱，他每晚都工作到很晚。
I want to save for a new bike.
我想攒钱买辆新自行车。
（2025广西贵港中考）
根据句子中所给的单词首字母提示，填写正确的单词。
Everyone should take action to s______ animals in great danger.
解析 我们可用“逻辑推理法”解答此题。由 the animals in great danger(处于极大危险中的动物)可知，此处表示“拯救处于极大危险中的动物”，结合首字母 s 可知，应用 save 表示“拯救”；答题空前的 to 为动词不定式符号，故 save 用原形。
答案 save
6One advantage of apps/the internet/social media is...应用程序 / 互联网 / 社交媒体的一个优点是……
advantage〔可数名词〕好处，优点；有利条件
反义词为 disadvantage(缺点；不利条件)。
the advantage of……的优点
It has more advantages than disadvantages.
这件事利大于弊。
（2025江苏苏州中考）
根据句意及首字母提示写出单词的正确形式。
In 1961,Yuan Longping found a natural hybrid rice plant that had many a ______ over others.
解析 我们可用“句意分析法”解答此题。结合首字母及 over others(超过其他的)可知句意为“1961 年，袁隆平发现了一株天然杂交水稻植株，相比其他水稻它有很多优点”。advantage 为可数名词，意为“优点”；many 修饰可数名词复数，故填 advantages。
答案 advantages
7 What effect has...had on your life ……对你的生活产生了什么影响？
effect〔名词〕效应，影响，结果
其前常用形容词修饰。
have a(n)... effect on 对……有……影响
= have a(n) ... influence on
have a good/bad effect on
对……有好的/ 坏的影响
have a helpful/harmful effect on
对……有益的/ 有害的影响
have no effect on 对……没有影响
The computer has had a big effect on us.
计算机已经对我们产生了很大的影响。
练习题
类型一：单词释义匹配 (Definition Matching)
将单词或短语与其中文释义正确匹配。
1. a great deal
2. via
3. progress
4. offline
5. nowadays
6. simply
7. save
8. advantage
9. effect
10. check
A. 现今
B. 进步
C. 影响
D. 节省
E. 未联网的
F. 通过
G. 检查
H. 优点
I. 只是
J. 大量
类型二：词形转换 (Word Form Transformation)
根据括号内的提示，用单词的适当形式填空。
1. I have learned __________ (a great deal) from this course.
2. We received the news __________ (via) email.
3. She has made great __________ (progress) in her English study.
4. I prefer to read __________ (offline) books sometimes.
5. __________ (nowadays), people use smartphones for everything.
6. It's __________ (simple) a matter of time.
7. We should __________ (save) water and electricity.
8. One __________ (advantage) of this method is that it saves time.
9. The medicine had a good __________ (effect) on his health.
10. Please __________ (check) your answers before handing in the paper.
类型三：短语填空 (Phrase Filling)
用方框内短语的适当形式填空。
a great deal of, make progress, after all, instead of, save time, one advantage of, have an effect on, check on, learn from, work on
1. He spent __________ money on his new computer.
2. If you study hard, you will __________ in your exams.
3. Don't be too hard on him. __________, he is only a child.
4. Why don't you walk to school __________ taking the bus
5. Using this app can __________ because it's very efficient.
6. __________ online learning is that you can study anytime.
7. Too much screen time can __________ your eyesight.
8. I need to __________ my little brother while my parents are out.
9. We should __________ our mistakes and try not to repeat them.
10. The scientists are __________ a new project to help the environment.
类型四：单项选择 (Multiple Choice)
1. I've learned ______ from reading this book.
A. a great deal
B. a great deal of
C. many
D. lot of
2. We communicate ______ WeChat.
A. via
B. with
C. by
D. for
3. She has made good ______ in her piano lessons.
A. progress
B. advantage
C. effect
D. save
4. I like to read books ______ sometimes.
A. nowadays
B. offline
C. simply
D. via
5. ______, most people have mobile phones.
A. Offline
B. Nowadays
C. Simply
D. Via
6. It's ______ the best way to solve the problem.
A. offline
B. nowadays
C. simply
D. via
7. We should ______ electricity whenever possible.
A. progress
B. save
C. check
D. effect
8. One ______ of living in the city is the convenience.
A. progress
B. save
C. advantage
D. effect
9. The bad weather had a big ______ on our plans.
A. progress
B. save
C. advantage
D. effect
10. Please ______ your homework before you submit it.
A. progress
B. save
C. check
D. effect
类型五：完成句子 (Sentence Completion)
根据中文提示，完成句子。
1. 我还通过在线学习应用程序学到了很多！
I've also learnt __________ via online learning apps!
2. 这个应用程序甚至能让我查看我的日常进步情况。
The app even let me __________.
3. 毕竟，离线的世界也很精彩，不是吗？
__________, the offline world is also exciting, right
4. 现今不用去商店，你可以只在网上购物。
__________ going to the store, you can __________ shop online.
5. 科技为我节省了时间。
Technology __________.
6. 社交媒体的一个优点是它能帮助我们与朋友保持联系。
__________ social media is that it helps us stay connected with friends.
7. 手机对我们的日常生活产生了很大的影响。
Mobile phones __________ our daily life.
8. 我们应该节约用水。
We should __________.
9. 他在数学方面取得了很大进步。
He has __________ in math.
10. 我只是想帮你。
I __________ want to help you.
类型六：同义句转换 (Sentence Transformation)
根据要求改写句子，保持句意基本不变。
1. I have learned a lot from this experience. (用a great deal改写)
I have learned __________ from this experience.
2. We received the information through the internet. (用via改写)
We received the information __________ the internet.
3. She is improving in her English speaking. (用make progress改写)
She is __________ in her English speaking.
4. Don't blame him. He is just a child. (用after all改写)
Don't blame him. __________, he is just a child.
5. Why don't you use a pen rather than a pencil (用instead of改写)
Why don't you use a pen __________ a pencil
6. This method helps us use less time. (用save time改写)
This method helps us __________.
7. A good point of this app is that it's free. (用advantage改写)
__________ this app is that it's free.
8. Social media influences our lives greatly. (用have an effect on改写)
Social media __________ our lives greatly.
9. I need to examine my work before handing it in. (用check改写)
I need to __________ my work before handing it in.
10. Currently, most people use digital payment. (用nowadays改写)
__________, most people use digital payment.
答案
类型一：单词释义匹配
1. J
2. F
3. B
4. E
5. A
6. I
7. D
8. H
9. C
10. G
类型二：词形转换
1. a great deal
2. via
3. progress
4. offline
5. Nowadays
6. simply
7. save
8. advantage
9. effect
10. check
类型三：短语填空
1. a great deal of
2. make progress
3. After all
4. instead of
5. save time
6. One advantage of
7. have an effect on
8. check on
9. learn from
10. working on
类型四：单项选择
1. A
2. A
3. A
4. B
5. B
6. C
7. B
8. C
9. D
10. C
类型五：完成句子
1. a great deal
2. check my daily progress
3. After all
4. Instead of; simply
5. saves me time
6. One advantage of
7. have had a big effect on
8. save water
9. made great progress
10. simply
类型六：同义句转换
1. a great deal
2. via
3. making progress
4. After all
5. instead of
6. save time
7. One advantage of
8. has a great effect on
9. check
10. Nowadays