mgz = 100J
=> 0.5 x 10 x z = 100 => z=20m
Câu thơ miêu tả cụ thể những nét đặc trưng của dân chài lưới
Làm giúp m với mọi người, hứa vote 5s+câu tlhn II.-Read the following passage carefully, then write True (T) or False (F) for each statement. . The people of Kiribati are afraid that one day their country in the not-too-distant future will disappear from the surface of the earth. Several times this year, the Pacific island nation has been flooded by a sudden high tide. These tide, which swept across the island and destroyed houses, came when there was neither wind nor rain. This never happened before. What is causing these mysterious high tides? The answer may be global warming. When fuels like oil and coal are being burned, pollutants are released, these pollutants hold heat in the earth’s atmosphere. Warmer temperatures cause water to expand and also create more water by melting glaciers and polar ice caps. If the situation continues, scientists say that many countries will suffer, Bangladesh, for example, might lose one-fifth of its land. The coral island nations of the Pacific like Kiribati and the Marshall Islands, however, would face an even worse fate – they would be swallowed by the sea. The loss of these coral islands would be everyone’s loss. Coral formations are home to more species than any other place on the earth. . . T F 1. In Kiribati there were sudden high tides coming when there was no wind or rain. 2.High tides without wind or rain often happen in Kiribati. 3. Global warming is definitely the cause of those mysterious high tides. 4.The loss of coral islands doesn’t affect people on the earth. 5. Coral reefs play an essential role in marine life.
I (not be) ......at work tomorow. I'm taking the day off
Minh is sitting in Dy Lai’s surgery .He is very worried and Dr Lai notices this .She smiled at Minh and tells him not to worried , She explains that one of Minh’s teeth has a cavity but it’s isn’t serious . Dr Lai filled the cavity in Minh’s tooth . She finishes in ten minutes . Minh is very pleased .Dr Lai says that Minh must brush his teeth very carefully everyday because clean and healthy teeth are very important for his health Where is Minh ? ............................................................................................................. Is he worried ? -................................................................................................................. c.Is the cavity in Minh’s tooth serious ? -.................................................................................................................. d.What does Dr Lai do with with the cavity in Minh’s tooth ? -.................................................................................................................. e. What does Dr Lai say ? -.................................................................................................................. f. How does Minh feel when he leaves the surgery ?
Màu sắc chính của mẫu ? Đậm nhạt trên mẫu như thế nào? Muốn vẽ được màu cho sát mẫu ta phải làm như thế nào. giúp mk nha!!1
Là học sinh, em cần làm gì để bảo vệ tài sản của nhà trường?( Nêu 6 việc làm cụ thể)
The first traffic control device appeared near the British House of Parliament at the intersection of George and Bridge Streets. The device was made in response to the desire by a Select Committee to use railway signals on highways. The device had lights and it used arms which extended outwards. It was operated manually by a police officer. The signal was 22 feet high and crowned with a gas light. The light was called semaphore and had arms that would extend horizontally that commanded drivers to "Stop" and then the arms would lower to a 45 degrees angle to tell drivers to proceed with "Caution". At night a red light would command "Stop" and a green light wouldmean use "Caution".The man behind this new and different invention was John Peake Knight a railroad engineer. The main reason for the traffic light was that there was an overflow of horse-drawn traffic over Westminster Bridge which forced thousands of pedestrians to walk next to the house of Parliament. But Knight's invention was not to last long. After only a month of use the device exploded and injured the police officer who was operating the light. In the first two decades of the 20th century semaphore traffic signals, like the one in London, were in use all over the United States with each state having its own design of the device. One good example was from Toledo, Ohio in 1908. The words "Stop" and "Go" were in white on a green background and the lights had red and green lenses illuminated by kerosene lamps for night travelers and the arms where eight feet above ground. Controlled by a traffic officer who would blow a whistle before changing the commands on this signal to help alert travelers of the change, the design was also used in Philadelphia and Detroit. The example in Ohio was the first time America tried to use a more visible form of traffic control that evolved the use of semaphore. The device that was used in Ohio was designed based on the use of railroad signals. 1. What was the main purpose of making the first traffic control device? …………………………………………………………………………………………………………… 2. What was the light operated manually by a police officer called? ……………………………………………………………………………………………………………… 3. Why wasn't John Peake Knight's invention to last long? ………………………………………………………………………………………………………… 4. How tall were the arms of the traffic lights used in Ohio in 1908? ……………………………………………………………………………………………………………… 5. The Westminster Bridge is in . ………………………………………………………………………………
ADVERBS Circle the adjective or the adverb to complete each sentence.l Example: My friend is a _____ driver. [ careful / carefully ] 1. My classmate is a _____ person. [ nice / nicely ] 2. I can speak Spanish very _____. [ good / well ] 3. Katrina took a painting class, so she can paint _____ pictures. [ beautiful / beautifully ] 4. Mr. Smith looked _____ at me when I arrived late. [ angry / angrily ] 5. Of course, I was _____ when I got an A+ on the exam. [ happy / happily ] 6. The music is too _____. Please turn it down! [ loud / loudly ] 7. My friends all tell me that I sing _____. [ bad / badly ] 8. The thief _____ took the money and walked out the door. [ quiet / quietly ] 9. The cat waited _____ for the mouse to come out of the hole. [ silent / silently ] 10. My cousin always walks very _____. [ quick / quickly ] 11. The work that my boss gave me was _____. [ easy / easily ] 12. Thomas is very _____. He always helps me. [ kind / kindly ] 13. The little boy _____ kept the cookie for himself. [ selfish / selfishly ] 14. The man _____ opened the door and looked inside. [ nervous / nervously ] 15. The fireman _____ rescued the people from the burning house. [ brave / bravely ] 16. I _____ offered to help my friend study for his exam. [ happy / happily ] 17. She is the most _____ person I know. [ polite / politely ] 18. It was midnight, and I heard a _____ noise outside. [ strange / strangely ]
Complete these sentences using :and,but,so,because. 1.She want to go to the cinema,.............. I don't like that film. 2.Mai play tennis............football. 3.I can't sleep,.............. I am going to drink a glass of hot milk. 4.She went to the disco,............ She didn't dance. 5.I study English.......... I want to talk with foreigners. 6.She didn't invite me,............ I didn't go to her birthday party. 7.She daned............ sang last night. 8.He is sad.............. he saw an accident. 9.She didn't invited me,.............. I didn't go to her birthday party. 10.She can draw well,............... she can cook.
Một hình thang có đáy lớn 120dm, đáy bé bằng 1/3 đáy lớn, chiều cao bằng trung bình cộng của hai đáy. tính diện tích hình thang đó.
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