The search for alternative sources of energy has led in various directions. Many communities are burning garbage and other biological waste products to produce electricity. Converting waste products to gases or oil is also an efficient way to dispose of waste. Experimental work is being done to derive synthetic fuels from coal, oil shale and coal tars. But to date, that process has proven expensive.

Other experiments are under way to harmless power with giant windmills. Geothermal power, heat from the earth, is also being tested. Some experts expect utility companies to revive hydroelectric derived from streams and rivers. Fifty years ago, hydroelectric power provided one third of the electricity used in the United States, but today it supplies only four percent. The oceans are another potential source of energy. Scientists are studying ways to convert the energy of ocean currents, tides, and waves to electricity. Experiments are also under way to make use of temperature differences in ocean water to produce energy.

1.     What provided one third of the electricity in the United State fifty years ago?

Fifty years ago, hydroelectric power provided one third of the electricity used in the United States________________

2.     What could best replace the phrase “geothermal power” in the passage?

_________________________________________________

3.     Name three alternative sources of energy mentioned in the passage.

_________________________________________________

4.     According to the author, what is the impracticability of using coat, oil shale and coal tars as sources of energy due to?

_________________________________________________

5.     What is the best title of the passage?  ________________________________________

II.  Choose the best answer:

6.      Solar energy, air and water are_______.

A. renewable      B. limited         C. restricted          D. narrow

7.      Although nuclear power is clean and plentiful, it is not_______

A. dangerous      B. unsafe          C. safe                  D. renewed

8. _______energy sources include water and wind power.

A. Friendly environmental          B. Environmentally friendly

C. Friendly environment             D. Environmental friendly

9.      Solar energy can be

_______.

A. electricity      B. electric         C. electrician        D. electrical

10.     Hydroelectric power is produced by the fall of_______ trapped into a dam.

A. air                 B. soil              C. wind                D. water

11.     Our major source _______energy is oil.     A. from     B. of      C. in        D. for

12.     The amount of fossil fuels_______the world is limited.

A. on                 B. for               C. of                    D. in

13.      What do you need energy_______?   A. to       B. for      C. at       D. by

14.      When water moves _______a high place to a lower place, it makes energy.

A. with              B. on                C. from                 D. at

15.      Many countries use solar energy_______ their daily life.

A. with               B. into              C. in                     D. for

One of my favorite movies is the Harry Potter movie. A film about magic, the world of witchcraft but no less profound  and interesting.Harry Potter is a series of films collaborated  between the US and the UK. This fantasy film consists of 8 parts based on the novel Harry Potter by author J. K. Rowling. The film revolves around two main characters, Harry Potter and Lord Voldemort. The main plot of the movie is battles between good and bad witches.The movie begins with Harry Potter living with his aunt’s house when his parents pass away. On Harry’s 11th birthday, Hagrid – a giant came to Harry and brought him to Hogwarts Magic School. Harry Potter and his friends, with their courage and intelligence, have uncovered countless dangerous secrets hidden in the magical world.The film is about the struggle between good and evil, and ultimately victory belongs to the good. After many times of being harmed, Harry Potter strongly graced and overcame the evil witch Voldemort.Harry Potter is a famous fantasy film in the world and is loved by many people. This is also a movie associated with many people’s childhood. You should watch this movie for entertainment and learning English effectively.

IV. Read the text and answer the following questions.

Cartoon, films

Cartoon films have very few limits. If you can draw something, you can make it move on the cinema screen. The use of new ideas and advanced computer programs means that cartoons are becoming exciting again for people of all ages. By the end of the 1970s, the cinema world had decided that cartoons were only for children. But soon afterwards, one or two directors had some original new ideas. They proved that it was possible to make films in which both adults and children could share the fun. However, not every cartoon film was successful. The Black Cauldron, for example, failed, mainly because it was too frightening for children and too childish for adults. Directors learnt from this mistake, and the film companies began to make large amounts of money again.

1.     Besides new ideas, what helps cartoons become exciting again?

_____________________________________________________

2.     When did cartoon films begin to be made for both adults and children?

_____________________________________________________

3.     Why was The Black Cauldron mentioned in the last paragraph?

_____________________________________________________

4.     Why was The Black Cauldron not succeessful?

_____________________________________________________

5.     How could film companies make large amounts of money again?

_____________________________________________________

35 phút

lỗi rồi

Câu 3: (3,0 điểm) Cho tam giác ABC vuông tại A. Tia phân giác của góc B cắt AC tại D. Kẻ DE vuông góc với BC tại E.

a) Chứng minh: tam giác ABD= tam giác EBD từ đó suy ra AB = EB.

b) Cho AB = 12cm, AC = 15cm. Tính độ dài cạnh BC.

c) Cho góc B = 60⁰. Tính góc ADE .

d) Chứng minh: DA < DC.

Câu 3: (3,0 điểm) Cho tam giác ABC vuông tại A. Tia phân giác của góc B cắt AC tại D. Kẻ DE vuông góc với BC tại E.

a) Chứng minh: = từ đó suy ra AB = EB.

b) Cho AB = 12cm, AC = 15cm. Tính độ dài cạnh BC.

c) Cho  = 60⁰. Tính .

d) Chứng minh: DA < DC.

cho luận điểm tinh thần dũng cảm sự hi sinh cao cả của các chiến sĩ áo trắng trong cuộc kháng chiến chống đại dịch covit 19 thật đáng phục,viết một đoạn văn làm sáng tỏ luận điểm trên