Câu 4. Trong các lệnh sau đây câu lệnh nào là đúng ?

A.Writeln(“Dien tich hinh chu nhat la”,S);

B.Writeln(‘Dien tich hinh chu nhat la’,S);

C.Writeln(‘Dien tich hinh chu nhat la’;S);

D.Writeln(‘Dien tich hinh chu nhat la,S’);

Câu 6. Kết quả của phép chia 45 mod 7 là 

A. 4                   B. 2                             C. 3                          D. 5

Câu 7. Trong ngôn ngữ lập trình Pascal, câu lệnh điều kiện dạng thiếu có dạng

A. if <điều kiện> then ;   B. if then ;     C. if <điều kiện>; then ;          D. if else ;

Nếu cho x := 5; giá trị của x là bao nhiêu sau câu lệnh: if x > 0 then x := x + 2; A. 10             B. 8,5           C. 7                            D. 9

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Viết 1 đoạn văn ngắn thuyết minh về tên gọi huyện Trảng Bom tỉnh Đồng Nai

The launch of Sputnik I and Yuri Gagarin, the first human being in space, marked the beginning of space exploration and the beginning of a new and unfamiliar type of pollution.

          Satellites, solar panels, rocket bodies and fragments from space shuttles that are floating in space and are no longer functional are considered space debris. This pollution of man-made objects in space affects us here on Earth as well and will continue to affect us in future travel. In 1978, the Soviet Union Kosmos 954, which contained a nuclear power source, reentered over Canada and left debris over an area the size of Austria. In 1969, five Japanese sailors were injured by pieces of space debris that hit their ship. The largest piece, weighing one thousand pounds, landed in Australia in 1979.

          Many solutions are being considered by scientists and engineers. However, the challenge to finding a solution lies within all of the nations which take part in the space exploration.

     1.            What are some examples of space pollution?

=>

     2.            What are the effects of space pollution?

___________________________________________________________

     3.            What did Kosmos 954 cause to Canada?

___________________________________________________________

     4.            Why were Japanese sailor injured in 1969?

Read the passage, and do the tasks that follow.

Bike Capital of the World

          Copenhagen has over 390 kilometers of bike lanes and is widely regarded as the bike capital of the world. The Danes are well-known for their love of cycling, and Copenhagen’s network of bike lanes is studied by other cities.

          Cyclists in Copenhagen are saving the city 90,000 tons of CO₂ emission annually. Every day, about 789,000 miles are cycled in Copenhagen. Thirty-six percent of the city’s residents bike to school or work. The city is looking to increase that number to 50% by building more bike lanes, widening existing lanes, creating biking –only bridges over the city’s waterways, providing more space for parking bikes, and improving safety along existing bike routes.

          The city of Copenhagen clearly understands the value of biking-friendly cities. They are healthier, more environmentally-friendly, and allow for better quality of life.

Task 1: Match a word in column A with its definition in column B, writing the answer in each blank.

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Rearrange the sentences in order to make a meaningful conversation ,writting the correct letter(A-H) in each blank.The conversation starts with number 0

0.Mi:Nick,last Sunday my mother and I went to the mall in the city center to buy some new clothes for our Tet holiday.The streets were so bright at night

......A.Mi:I see.Do you know any other examples of light pollution?

......B.Mi:Besides the waste,light pollution may affect human health ad our sleep cycles

......C.Mi:Light pollution?Our teacher has just mentioned it in the lesson this morning.Why is too much light at night harmful?

.......D.Mi:And sometime we also have extra or unnceessary lights around the house

.....E.Nick:I enjoy Tet in Vietnam,Mi.But a lot of lights and posters along the streets may cause light pollution

......F.Nick:You're right,Mi.I think it is very wasteful because we use much more energy to light up the city or our home all day round

.......G.Nick:Because it may prevent us from seeing the stars and other planets

.......H.Nick:Yes,we can mention street lamps that shine in all directions,instead with a hood to point light downward the streets, or cities with lights all night long

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