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1. T. Scientists say it could take at least 1,500 years before humans make contact with species of aliens, or for them to communicate with or find us.
2. F. Astronomers from Cornell University in the USA combined two existing theories about the possibility of life existing on other planets to form a new equation.
3. F
4. T. The other is the principle, which suggests that because there is life on Earth, it will typically exist on Earth-like planets throughout the universe.
5. F. According to Solomonides, extraterrestrials could have received signals from Earth.
6. T . He said they would need to decode the light waves into sounds and analyze 3,000 human languages to understand any messages.
7. T. He said that signals from Earth have only reached about 8,500 stars
8. F. If we stop listening or looking, we may miss the signals, so we should keep looking.
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Các nhà khoa học từ lâu đã phải vật lộn với cách đo lường tác động của biến đổi khí hậu đối với động vật hoang dã. Điều này đặc biệt đúng đối với các loài chim bay vào và ra khỏi các khu vực ven biển giáp với Bắc Băng Dương. Trong quá khứ, các nhà nghiên cứu phụ thuộc chủ yếu vào thông tin thu thập bởi vệ tinh để theo dõi sự di chuyển của chim và động vật. Nhưng phương pháp này có thể tốn kém và dẫn đến lượng thông tin khổng lồ, có thể khó xử lý. Bây giờ các nhà khoa học đang chuyển sang một loại công nghệ khác để giúp họ theo dõi chim và động vật hoang dã khác. Songbirds đặc biệt khó học trong tự nhiên. Họ có thể bay qua hàng ngàn cây số và cơ thể của họ quá nhỏ cho các thiết bị theo dõi điện tử. Một báo cáo mới cho biết về một dự án trong đó các nhà nghiên cứu ghi nhận loài chim biết hót và sau đó đưa âm thanh vào một chương trình máy tính để nghiên cứu. Các nhà nghiên cứu đã tạo ra các thuật toán học máy với khả năng tập trung vào các cuộc gọi chim trong khi bỏ qua các tiếng ồn khác. Thuật toán giúp cải thiện khả năng dự đoán kết quả chính xác. Các phương pháp học máy tương tự đã được sử dụng để nhận ra lời nói của con người.
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Chào em, em tham khảo nhé!
1. The invention of the wheel changed the world enormously. (INVENT)
2. Many scientists have made some important new discoveries. (DISCOVER)
3. We are trying to gather everyone's ideas and to form the ideas into a real plan. (REAL)
4. Science and technology have significant impacts on economic development. (ECONOMY)
5. They need to be more scientific about the matter. (SCIENCE)
6. Development in science and technology have changed people's life dramatically. (DEVELOP)
7. Technological advances have brought a lot of benefits to people. (TECHNOLOGY)
8. If there are aliens out there, do you think they are much more technologically advanced than we are. (TECHNOLOGY)
9. He organized the team with military precision. (PRECISE)
10. The opposition leader addressed a rally of 50 000 supporters. (SUPPORT)
11. The invention of Facebook is useful because it lias helped people communicate with each other. (INVENT)
12. She wrote a book on medical science for prospective doctors. (MEDICINE)
13. Electricity is one of the most important new sources of energy. (ELECTRIC)
14. A new kind of telescope will be invented to help scientists explore the other planets in our Solar system. (SCIENCE)
15. Technician said fuel used and carbon dioxide released from vehicles would be cut down by new cruise control. (TECHNIC)
16. Einstein was one of the greatest scientists in the world. (SCIENCE)
17. This is a great improvement on his previous work. (IMPROVE)
18. She made a career as an inventor of quick-selling gadgets. (INVENT)
19. Work experience is usually highly beneficial for students. (BENEFIT)
20. This decision marked a fundamental transformation in the policy. (TRANSFORM)
Chúc em học tốt và có những trải nghiệm tuyệt vời tại hoc24.vn!
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1,If you do not like this one, I’ll bring you another ( Use UNLESS instead of IF) →Unless............you like this one, I 'll bring you another..........................................
2.If Lucia had been=> were here now, she would find out the truth about he uncle’saccident.( Find the mistake and correctit ) → ...........,.................................................................................... 3.Scientists have invented new devices to help people live a longer life. →New devices..............have been invented to help people live longer by scientists............................................................. 4 .Noise pollution/ big cities/ lead/ hearing/ problems..( Write the complete sentences) →................Noise pollution in big cities leads to hearing problems........................................................................................................
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Fill in the blanks with for or since.
Tom and Marry have been building a house _____for____ two years. They have been dreaming of finishing it ____since_____ last summer but they have been having problems _____for____ a few months because of the weather. In fact, it has been raining and snowing _____since____ October so they haven't been able to put the roof on yet. This weekend they are trying to put the windows. They have only been working _____since____ 8 o'clock but they feel like they've been doing it ____for_____ hours because it is very difficult. They have been saving up ____for_____ a long time but they haven't been able to hire any workmen yet. Tom has been looking for an evening job ____since_____ Christmas, so they will have enough money soon. They haven't been going out _____since____ they started saving-but when the hourse is finished they are goinh to have a big party to celebrate
Tom and Marry have been building a house for two years. They have been dreaming of finishing it since last summer but they have been having problems for a few months because of the weather. In fact, it has been raining and snowing since October so they haven't been able to put the roof on yet. This weekend they are trying to put the windows. They have only been working since 8 o'clock but they feel like they've been doing it for hours because it is very difficult. They have been saving up for a long time but they haven't been able to hire any workmen yet. Tom has been looking for an evening job since Christmas, so they will have enough money soon. They haven't been going out since they started saving-but when the hourse is finished they are goinh to have a big party to celebrate
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I'm not sure about it. (Mình không chắc lắm về nó.)
I doubt it. (Mình phân vân/nghi ngờ chuyện đó.)
C
Scientists have been trying to find ___ of aliens
A. amounts ( số lượng)
B. records (hồ sơ)
C. traces( dấu vết)
D. sights ( điểm tham quan)