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Tiếng Anh 9 Unit 11 với chủ đề Electronic Devices giúp học sinh mở rộng vốn từ vựng về các thiết bị điện tử trong cuộc sống hiện đại, đồng thời rèn luyện các kỹ năng tiếng Anh xoay quanh chủ đề này.
Trong bài viết dưới đây, IELTS LangGo sẽ cung cấp đáp án và gợi ý trả lời cho tất cả các phần giúp học sinh nắm chắc kiến thức và vận dụng hiệu quả trong các bài kiểm tra cũng như giao tiếp thực tế.
Phần Getting Started mở đầu Unit 11 về chủ đề Electronic Devices (Các thiết bị điện tử) với đoạn hội thoại tại một cửa hàng đồ điện tử.
1. What does the customer want to buy?
→ The customer wants to buy a computer for his/her son.
2. What kind of electronic device does the shop assistant suggest the customer should buy?
→ The shop assistant suggests (that) the customer should buy a tablet.
3. What is the tablet’s case made of?
→ It is made of aluminium.
4. What is the tablet’s pencil used for?
→ It is used to take notes, draw pictures or diagrams, and make 3D designs.
Đáp án:
1 - d. aluminium - a light, silver-grey metal
2 - e. portable - easy to carry or to move
3 - a. touchscreen - a screen of a laptop or a tablet that enables the user to interact directly with what is displayed
4 - c. wireless - not needing wires to make a connection or to communicate
5 - b. virtual - made to appear to exist by the use of computer software, rather than in the real world
1. The website allows you to take a virtual tour of the art gallery.
2. You can carry your portable laptop with you from class to class because it’s small and light.
3. Nowadays we often use wireless keyboards because they are portable.
4. We often use aluminium to make vehicles like aircraft or cars because of its strength and lightweight.
5. Most smartphones today have a touchscreen which allows us to navigate, type, and interact with apps and games easily.
Gợi ý trả lời:
Ví dụ 1:
A: It’s a small, flat computer. We can control it by touching its screen or by using a special pen.
B: Is that a portable music player?
A: No. Try again.
B: Is it a tablet?
A: Yes, that's right!
Ví dụ 2:
A: It's a small device you wear on your wrist. It can tell the time, track your health, and show messages from your phone.
B: Is that a smartwatch?
A: Yes, exactly!
>> Xem chi tiết hướng dẫn giải tại đây: Tiếng Anh 9 Unit 11 Getting Started
Phần Từ vựng giúp các bạn học sinh làm quen với tên gọi của các thiết bị điện tử hiện đại (3D printer, e-reader, camcorder...) và các loại vật liệu chế tạo phổ biến (copper, steel, plastic, rubber, cardboard).
Đáp án:
1 - d: robotic vacuum cleaner
2 - c: e-reader
3 - a: smartwatch
4 - e: portable music player
5 - b: 3D printer
6 - f: camcorder
Đáp án:
1. We often use copper, which is a soft reddish-brown metal, to make electric wire, pipes, and coins.
2. Today, plastic is often used to make cases of electric devices because it doesn't conduct electricity and it is light, and easily be shaped into many different forms.
3. We often use steel in the construction industry because it is a strong and hard metal.
4. We use rubber, which comes from rubber trees, for making tyres, boots, etc.
5. The kids need a piece of cardboard to easily cut shapes and make toys.
What do you call these materials in Vietnamese?
→ rubber (cao su), plastic (nhựa), cardboard (bìa cứng/giấy các-tông), copper (đồng), steel (thép).
1. The most common use for rubber / iron is for producing tyres for cars, motorbikes, bicycles, etc.
→ Đáp án: rubber
2. The most popular material for the construction of buildings and bridges is plastic / steel because it is strong enough to support heavy loads.
→ Đáp án: steel
3. Today 3D printers / photocopiers allow us to create three-dimensional objects, e.g. medical implants, clothes, cars, etc.
→ Đáp án: 3D printers
4. We use copper / cardboard to make food packaging such as cereal and pasta boxes, as it is food-safe and not harmful to the environment.
→ Đáp án: cardboard
5. They use camcorders / portable music players for live-streaming video content such as concerts, live events, and webinars.
→ Đáp án: camcorders
Phần Phát âm hướng dẫn học sinh cách nhấn trọng âm vào tất cả các từ trong những câu cảm thán/mệnh lệnh ngắn (Stress on all words in sentences), giúp giọng điệu tiếng Anh trở nên tự nhiên và có cảm xúc hơn.
1. Don't talk!
2. Don't worry!
3. Keep silent!
4. Look out!
Các câu cần phân loại:
1. I see!
2. Be quiet!
3. Say sorry!
4. Watch out!
5. That long?
6. Speak louder!
Ký hiệu:
Phân loại:
| OO (2 âm tiết, nhấn mạnh cả 2) | OOo (3 âm tiết, nhấn 2 âm đầu, âm cuối không nhấn) |
| 1. I see! | 2. Be quiet! (Be qui-et!) |
| 4. Watch out! | 3. Say sorry! (Say sor-ry!) |
| 5. That long? | 6. Speak louder! (Speak lou-der!) |
>> Xem lời giải chi tiết tại đây: Tiếng Anh 9 Unit 11 A Closer Look 1
Phần A Closer Look 2 Unit 11 Tiếng Anh lớp 9 sách Global Success tập trung giúp các bạn học sinh nắm được cấu trúc với các động từ suggest, advise, recommend + V-ing và mệnh đề với should.
1. The sales assistant suggested that Tom ______ the portable laptop.
A. should buy
B. will buy
C. buys
D. bought
→ Đáp án: A. should buy
2. My smartphone broke down last week, and Mary recommended ______ it to the repair centre.
A. I will bring
B. I bringing
C. I bring
D. me bring
→ Đáp án: C. I bring
3. My uncle recommended ______ a robotic vacuum cleaner.
A. to buy
B. buying
C. to buying
D. buy
→ Đáp án: B. buying
4. I suggest that you ______ the directions carefully before assembling the computer.
A. should read
B. would read
C. will read
D. could read
→ Đáp án: A. should read
5. She advises ______ a yoga class to improve flexibility and relaxation.
A. to take
B. took
C. take
D. taking
→ Đáp án: D. taking
1. I recommended collecting old electronic devices.
2. The sales assistant suggested that I (should) exchange the digital music player I bought last month.
3. The teacher advised that we (should) access the Internet for extra information about our lecture.
4. The doctor advised not using digital devices before bedtime.
5. My classmate recommended that I (should) have the PC repaired as soon as possible.
1. The teacher (A) suggested that we don’t waste (B) time playing (C) video games (D).
→ B. don't waste → should not waste / shouldn't waste / not waste
2. I advise to try (A) a new workout routine (B) to keep (C) things interesting (D).
→ A. to try → trying
3. Her parents recommend that (A) she studies (B) harder so that (C) she can get into (D) a good university.
→ B. studies → (should) study
4. The sales (A) assistant suggested that I must (B) choose a tablet with (C) a brighter colour (D).
→ B. must → should / bỏ "must"
5. If (A) you like (B) chicken, I recommend eat (C) at the restaurant opposite (D) our office.
→ C. eat → eating
Đáp án:
1. A: What should we do to create three dimensional objects?
B: I recommend using a 3D printer.
2. A: What should we do to prevent global warming?
B: I suggest we should reduce exhaust fumes.
3. A: What should we do if we want to communicate with others on the move?
B: I advise using a smartphone.
4. A: What should we do to protect and preserve our national parks?
B: I advise that we should limit the number of visitors every day.
5. A: What should we do to improve our health?
B: I recommend eating more fruits and vegetables.
Gợi ý trả lời :
Tình huống 1. His / Her laptop has broken down.
A: Oh no! My laptop has just broken down and I have a deadline tomorrow. What should I do?
B: Don't panic! I recommend taking it to a computer repair centre right away. / I suggest that you should take it to a computer repair centre right away.
Tình huống 2. He / She is considering buying a new smartphone.
A: My phone is so old. I am considering buying a new smartphone, but there are so many options.
B: I recommend reading some reviews on the Internet first. Also, I advise that you should choose a phone with a large battery so you don't have to charge it all the time.
Tình huống 3. He / She likes to read a lot of books but he / she doesn’t want them to take up too much space.
A: I really like to read a lot of books, but my room is small and I don’t want them to take up too much space.
B: In that case, I suggest buying an e-reader. / I recommend that you should use an e-reader. It can hold thousands of books!
Tình huống 4. He / She is feeling tired.
A: I've been working on my assignment for hours. I am feeling really tired and my eyes hurt.
B: I advise taking a short break from the screen. And I suggest that you should go to bed early tonight to get some rest.
>> Xem lời giải chi tiết tại đây: Tiếng Anh 9 Unit 11 A Closer Look 2
Phần Communication Unit 11 Tiếng Anh lớp 9 tập trung vào hai nội dung quan trọng: các mẫu câu giao tiếp dùng để kiểm tra xem ai đó đã hiểu ý mình nói chưa và luyện nói về chủ đề thiết bị điện tử trong lớp học.
Hội thoại 1:
Sister: I can't do my English homework. Can you help me?
Brother: You just read it carefully and find the key words from the questions. Got it?
Sister: OK, I got what you mean.
Hội thoại 2:
Manager: First, enter the Event Title and then enter the Event Description. Next, select the Location and Room. Do you follow me?
Employee: I'm sorry. I don't quite follow you. Could you say that again, please?
Tình huống 1: Your friend asks you to explain the rules of a game. You explain... and check if he/she understands... He/She answers that he/she understands it.
Hội thoại mẫu:
Your friend: Hey, can you teach me how to play this Uno game? It looks fun but I don't know the rules.
You: Sure! First, every player gets 7 cards. The rest of the cards are put in the middle. When it's your turn, you have to match the card on the table by color or number. Got it?
Your friend: OK, I got what you mean. But what if I don't have a matching card?
You: Good question! If you don't have one, you must draw a new card from the pile in the middle. And remember, you must yell "Uno" when you only have one card left in your hand!
Your friend: Oh, that sounds easy and exciting! Let's play!
Tình huống 2: A stranger asks you the way to the nearest hospital. You tell him/her the way and check if he/she could follow you. He/She answers that he/she doesn't quite follow you and asks you to repeat it.
Hội thoại mẫu:
Stranger: Excuse me, could you help me? I need to go to the nearest hospital as soon as possible, but I'm completely lost.
You: Of course! The nearest one is City Hospital. First, you go straight along this street for about 500 meters until you see a big supermarket. Then, you turn right at the traffic lights. Do you follow me?
Stranger: I'm sorry. I don't quite follow you. Could you say that again, please? Did you say turn left or right at the supermarket?
You: You turn right at the supermarket. After that, keep walking past the park, and you will see the hospital on your left. It's a tall white building.
Stranger: Ah, I see. Turn right at the supermarket and it's past the park. Thank you so much for your help!
You: You're welcome! Stay safe!
Đáp án:
1 - T. Nick says that electronic devices help students collaborate with their classmates.
2 - F. According to Nick, print materials have been replaced by digital textbooks and educational software in most schools.
3 - F. Phong says social media or entertainment websites help increase students’ focus and attention during class time.
4 - T. According to Phong, prolonged use of electronic devices can lead to health problems.
Đáp án:
| Advantages | Disadvantages |
| 1. Using electronic devices in classrooms can help students stay engaged and motivated. | 2. Relying too much on electronic devices for information can lead to a decrease in critical thinking, problem-solving, and creativity skills. |
| 3. Using electronic devices in classrooms can help students develop technology skills and better prepare them for future careers. | 4. Electronic devices can be expensive, and schools may need to invest more to purchase and maintain them for students. |
| 6. Electronic devices can help students store, organise, and access their notes and assignments. | 5. Electronic devices can be used by students to cheat on tests and assignments. |
Gợi ý bài nói:
I think that the use of electronic devices in modern classrooms is good if we know how to use them properly. First, it can help students stay engaged and motivated because interactive lessons are very interesting. Second, they help us store, organise, and access our notes easily. We don't have to carry a heavy backpack of books anymore. However, there are also some disadvantages. If we use them too much, it can cause eye strain and headaches. Also, students may get distracted by social media during class. Therefore, teachers and parents should guide us to use these devices effectively.
>> Xem lời giải chi tiết tại đây: Tiếng Anh 9 Unit 11 Communication
Trong phần Skills 1 Unit 11 Tiếng Anh 9, các bạn học sinh sẽ tìm hiểu về các thiết bị điện tử qua bài đọc phần Reading và thảo luận về vai trò của chúng trong phần Speaking.
What electronic device do you use most often? What do you use it for?
Gợi ý trả lời:
I use my smartphone most often. I use it for chatting with my friends, listening to music, and looking up information for my homework.
Đáp án:
| Words | Meanings |
| 1. stylish | b. fashionable; elegant and attractive |
| 2. self-portrait | d. a picture or photograph that you make of yourself |
| 3. window shade | a. a piece of material fixed onto a roller that we can pull down to cover a window |
| 4. privacy | c. the state of being not watched or disturbed by other people |
Đáp án:
1 - T. The smartphone allows you to connect with everybody through emails, video calls, and social networking apps.
2 - T. You can send the photographs of yourself immediately with the smartphone.
3 - F. The portable music player doesn't allow you to play games on it.
4 - F. You cannot control how much light comes into your house with the smart window shade.
5 - T. The smart window shade allows you to control the temperature of your house.
Gợi ý trả lời:
1. What electronic device is important to you?
→ My laptop is very important to me.
2. How long have you had it?
→ I have had it for two years. My parents gave it to me on my 13th birthday.
3. What does it look like?
→ It is silver, thin, and quite light, so it's very portable.
4. When do you use it?
→ I use it every day, mainly in the evening after school.
5. Why is it important to you?
→ It is important because it helps me do my homework, attend online classes, and relax by watching movies.
Gợi ý bài nói mẫu:
I talked with Lan about her laptop that is important to her. She has had it for two years since her 13th birthday. The laptop is silver, thin, and portable. She uses it every day in the evening. It is very useful because it helps her do homework, search for information, and watch movies in her free time.
>> Xem lời giải chi tiết tại đây: Tiếng Anh 9 Unit 11 Skills 1
Trong phần Skills 2 Unit 11 Tiếng Anh lớp 9, học sinh sẽ được rèn luyện 2 kỹ năng Listening và Writing qua bài nghe về robot hút bụi và viết về thiết bị điện tử yêu thích.
Gợi ý trả lời:
1. What is this electronic device?
→ This is a robotic vacuum cleaner.
2. Do you want to have one in your home? Why / Why not?
→ Yes, I really want to have one in my home because it helps me clean the floor automatically, saving me a lot of time and energy.
1. In Trang’s opinion, cleaning the floor ________.
A. is an easy and interesting task
B. is boring and takes a lot of time
C. can only be done by housekeepers
→ Đáp án: B. is boring and takes a lot of time
2. Trang’s current robotic vacuum cleaner can clean ________.
A. almost every dust, spot, and dirty mark in her house
B. only dust, spots, and dirty marks that we can see
C. dust, spots, and dirty marks under human control
→ Đáp án: A. almost every dust, spot, and dirty mark in her house
3. If you drop crumbs to the floor, robotic vacuum cleaners of the future will come by and ________.
A. wipe all of them with a rubber
B. suck them all up
C. remind you to clean them
→ Đáp án: B. suck them all up
4. In the future, laser technology will enable robot vacuum cleaners to ________.
A. get to any floor or room in our houses
B. climb stairs and open doors or drawers
C. see everything on the ground
→ Đáp án: C. see everything on the ground
Đáp án:
1. Trang can control her current robotic vacuum cleaner with an app on her smartphone.
2. Trang’s current robotic vacuum cleaner is easy to store and carry.
3. Robotic vacuum cleaners of the future will be able to recognise patterns and then take action.
4. Trang thinks robotic vacuum cleaners will be more helpful to us in the future.
Gợi ý nội dung:
1. What is your favourite electronic device?
- Smartphone
2. What can it do for you now?
- Current uses: make calls, surf the internet, take photos, help with studying (search for info).
3. What will it be able to do for you in the future?
- Future uses: project 3D screens in the air, translate animal languages, and charge its battery from the sun automatically.
Đoạn văn mẫu:
My favourite electronic device is the smartphone. Currently, it is an essential tool in my daily life. I use it to keep in touch with my family and friends, search for information for my homework, and relax by listening to music or playing games. Its high-quality camera also helps me capture beautiful moments. However, I believe smartphones will become much smarter in the future. Within the next ten years, future smartphones might be able to project 3D holographic screens into the air, allowing us to watch movies without holding the device. In short, smartphones are amazing devices that will continue to surprise us. Furthermore, they may even have AI that can translate animal languages so we can talk to our pets. In short, smartphones are amazing devices that will continue to surprise us.
>> Xem lời giải chi tiết tại đây: Tiếng Anh 9 Unit 11 Skills 2
Trong phần Looking Back Unit 11 lớp 9, các bạn học sinh sẽ được ôn tập và củng cố từ vựng chủ đề các thiết bị điện tử và ngữ pháp trọng tâm của Unit 11.
Đáp án:
(1) - e-reader
(2) - smartwatch
(3) - robotic vacuum cleaner
(4) - 3D printer
(5) - portable music player
(6) - camcorder
Đáp án:
1. We often use copper to make power lines and electrical wires because it is a good conductor of electricity.
2. I can adjust the text size and font to suit my reading preferences on my e-reader.
3. My smartwatch can track my physical activity, heart rate, and sleep patterns, so it can help me monitor my overall health and fitness.
4. We often use plastic to make toys for children because it's durable, lightweight, and easy to mold into different shapes.
5. If I need a replacement part for a machine or device, I can use my 3D printer to create a new one that is a perfect fit.
1. My teacher advised that I ________ harder to pass the exam.
A. studies
B. study
C. studying
D. to study
→ Đáp án: B. study
2. The professor suggested he ________ the research before March.
A. submit
B. submitting
C. submits
D. would submit
→ Đáp án: A. submit
3. Her leader suggested ________ on time.
A. be
B. being
C. is
D. to be
→ Đáp án: B. being
4. Linh recommended that Nam ________ a new e-reader.
A. should buy
B. bought
C. buying
D. will buy
→ Đáp án: A. should buy
5. The coaches advised that we ________ a Facebook group.
A. creating
B. created
C. to create
D. create
→ Đáp án: D. create
Đáp án:
1. I recommend that you (should) reduce your screentime.
2. It's so cold outside. We suggest closing the window.
3. My teacher advised that I (should) look for a part-time job to earn more money.
4. Henry has recommended choosing a better smartwatch for your dad.
5. The government advised traveling by bus to reduce environmental pollution.
>> Xem lời giải chi tiết tại đây: Tiếng Anh 9 Unit 11 Looking Back
Project Unit 11 lớp 9 Global Success với chủ đề A competition for designing leaflets on electronic devices là một hoạt động học tập nhằm khuyến khích học sinh phát huy sự sáng tạo và mở rộng hiểu biết về các thiết bị điện tử.
A competition for designing leaflets on electronic devices
1. Choose an electronic device and design a leaflet to promote it, including:
2. Present your leaflet to the other groups.
3. Vote for the best leaflet.
Gợi ý trả lời:
| Name of the electronic device | - Holo-vision VR Glasses |
| its appearance, main parts, etc. | - Stylish and modern design. - Made of lightweight plastic and soft rubber. - Includes a 3D visual screen, wireless headphones, and two hand controllers. |
| key features | - Connects to Wi-Fi easily. - Creates a virtual 360-degree world. - Voice control system. |
| its benefits | - Helps you play games and watch movies like you are inside them. - Useful for virtual travel or online studying. |
>> Xem bài mẫu chi tiết tại đây: Project Unit 11 Tiếng Anh 9
Với chủ đề Electronic Devices, Unit 11 Tiếng Anh lớp 9 giúp các bạn học sinh khám phá những thiết bị điện tử quen thuộc trong cuộc sống hiện đại và hiểu rõ hơn về vai trò của công nghệ trong học tập cũng như sinh hoạt hằng ngày.
Thông qua lời giải chi tiết từ IELTS LangGo, các bạn có thể dễ dàng tổng hợp lại kiến thức quan trọng, mở rộng vốn từ vựng và tự tin vận dụng vào các dạng bài tập cũng như tình huống giao tiếp thực tế. Chúc các bạn học tập thật hiệu quả!
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