Câu 19: Cho mạch điện gồm hai bóng đèn mắc nối tiếp. Biết hiệu điện thế giữa hai đầu mạch điện là 6V. Hiệu điện thế giữa hai đầu đèn thứ nhất bằng \(\dfrac{2}{3}\) hiệu điện thế giữa hai đầu đèn thứ hai. Tính hiệu điện thế giữa hai đầu đèn thứ hai. Kết quả là
A. 1,8V. B. 2,4V. C. 3,6V. D. 4,8V.
IV. Give the correct comparison form of adjectives.
1. Nam is ……….... than his sister. (tall)
2. Mr. Tan works………….. hours than my father. (many)
3. Vietnamese students have……………. vacations than American students. (few)
4. He drinks…………….. wine than Mr. Hai. (little)
5. Bill studies ……………… than you. (good)
IV.Choose the correct answer.
41. The city is working on a project _____________ the slums with clean water.
A.providing B.provide C.to provide D.to providing
42. In that country, over 30% of the population live in ____ .
A.poor B.poorer C.poverty D.the poor
43. Children who _______ malnutrition can have a lot of diseases.
A.suffer from B.avoid C.gain D.obtain
V. Read the following passage and decide if it is T or F.
Many people still believe that natural resources will never be used up. Actually, world’s energy resources are limited. Nobody knows exactly how much fuel is left. However, we also should use them economically and try to find out alternative sources of power. According to Professor Marvin Burnharm of the New EnglandInstitute of Technology, we have to start
conserving coal, oil and gas before it is too late; and nuclear power is the only alternative.
However, many people disagree to use nuclear power because it’s very dangerous. What would happen if there was a serious nuclear accident? Radioactivity causes cancer and may badly affect the future generations.The most effective thing is that we should use natural resources as economical as possible.
True/ False
1. Natural resources will run out. 1._________
2. The world’s energy resources are unlimited. 2._________
3. We should use fuel economically. 3._________
4. Many people agree to use nuclear power as an alternative energy. 4._________
I. Read the passage and answer the following questions.
Among the many special dishes in Ha Noi, pho is the most popular. It is a special kind of Vietnamese soup. We can enjoy Pho for all kinds of meals during the day, from breakfast to dinner, and even for late night snack. Pho has a very special taste. The rice noodles are made from the best variety of rice. The broth for pho bo (beef noodle soup) is made by stewing the bones of cows for a long time in a large pot. The broth for another kind of pho, pho ga (chicken noodle soup) is made by stewing chicken bones. The chicken meat served with pho ga is boneless and cut into thin slices... It’s so delicious.
1. When can we enjoy pho?
_____________________________________________________________
2. How is the chicken meat served with pho ga?
_____________________________________________________________
3. What are the rice noodles made from?
_____________________________________________________________
4. How is the broth for pho bo made?
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