Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the question.

Urban populations interact with their environment. Urban people change their environment through their consumption of Food, energy, water, and land. And in turn, the polluted urban environment affects the health and quality of life of the urban population. People who live in urban areas have very different consumption patterns than residents in rural areas. For example, urban populations consume much more food, energy, and durable goods than rural populations. In China during the 1970s, the urban populations consumed twice as much pork as the rural populations who were raising the pigs. With economic development, the difference in consumption declined as the rural populations ate better diets. But even a decade later, urban populations had 60 percent more pork in their diets than rural populations. The increasing consumption of meat is a sign of growing affluence in Beijing; in India where many urban residents are vegetarians, greater prosperity is seen in higher consumption of milk.

Urban populations not only consume more food, but they also consume more durable goods, In the early 1990s, Chinese households in urban areas were two times more likely to have a TV, eight times more likely to have a washing machine, and 25 times more likely to have a refrigerator than rural households. This increased consumption is a function of urban labor markets, wages, and household structure.

Urban consumption of energy helps create heat islands that can change local weather patterns and weather downwind from the heat islands. The heat island phenomenon is created because cities radiate heat back into the atmosphere at rate 15 percent to 30 percent less than rural areas. The combination of the increased energy consumption and difference in albedo (radiation) means that cities are warmer than rural areas (0.6 to 1.3 C), And these heat islands become traps for atmospheric pollutants. Cloudiness and fog occur with greater frequency. Precipitation is 5 percent to 10 percent higher in cities; thunderstorms and hailstorms are much more frequent, but snow days in cities are less common.

Urbanization also affects the broader regional environments. Regions downwind from large industrial complexes also see increases in the amount of precipitation, air pollution, and the number of days with thunderstorms. Urban areas affect not only the weather patterns, but also the runoff patterns for water. Urban areas generally generate more rain, but they reduce the infiltration of water and lower the water tables. This means that runoff occurs more rapidly with greater peak flows. Flood volumes increase, as do floods and water pollution downstream.

Many of the effects of urban areas on the environment are not necessarily linear. Bigger urban areas do not always create more environmental problems. And small urban areas can cause large problems. Much of what determines the extent of the environmental impacts is how the urban populations behave - their consumption and living patterns - not just how large they are.

In which paragraph does the writer mention the temperature in urban areas is higher than that of rural ones?

A. Paragraph 3

B. Paragraph 4

C. Paragraph 5

D. Paragraph 6

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the question.

Before the grass has thickened on the roadside verges and leaves have started growing on the trees is a perfect time to look around and see just how dirty Britain has become. The pavements are stained with chewing gum that has been spat out and the gutters are full of discarded fast food cartons. Years ago I remember travelling abroad and being saddened by the plastic bags, discarded bottles and soiled nappies at the edge of every road. Nowadays, Britain seems to look at least as bad. What has gone wrong?

The problem is that the rubbish created by our increasingly mobile lives lasts a lot longer than before. If it is not cleared up and properly thrown away, it stays in the undergrowth for years; a semi-permanent reminder of what a tatty little country we have now. Firstly, it is estimated that 10 billion plastic bags have been given to shoppers. These will take anything from 100 to 1,000 years to rot. However, it is not as if there is no solution to this. A few years ago, the Irish government introduced a tax on non-recyclable carrier bags and in three months reduced their use by 90%. When he was a minister, Michael Meacher attempted to introduce a similar arrangement in Britain. The plastics industry protested, of course. However, they need not have bothered; the idea was killed before it could draw breath, leaving supermarkets free to give away plastic bags.

What is clearly necessary right now is some sort of combined initiative, both individual and collective, before it is too late. The alternative is to continue sliding downhill until we have a country that looks like a vast municipal rubbish tip. We may well be at the tipping point. Yet we know that people respond to their environment. If things around them are clean and tidy, people behave cleanly and tidily. If they are surrounded by squalor, they behave squalidly. No much of Britain looks pretty squalid. What will it look like in five years?

The word “alternative” in the last paragraph is closest in meaning to ______.

A. freedom

B. disruption

C. change

D. option

My brother/ not like/ ice-skating/ because/ think/ it/ dangerous.

Trong các nhận định sau:

   1) Ancol là những hợp chất hữu cơ trong phân tử có chứa nhóm - OH.

   2) Ancol có nhiệt độ sôi cao hơn đồng phân ete của nó.

   3) Phenol tham gia phản ứng thế với Br 2  dễ hơn benzene.

   4) Anđehit và xeton đều tham gia phản ứng tráng bạc.

   5) Oxi hóa butan được axit axetic.

- Nhận định đúng là:

A. (1), (2), (3).

B. (1), (3), (5).

C. (1), (4), (5).

D. (2), (3), (5).

cho M là trung điểm của đoạn thẳng AB và điểm C nằm ngoài đường thẳng AB . Lấy điểm D thuộc tia đối của tia CB . gọi E là giao điểm của DM vad AC , K là giao điểm của BE và AD .Chứng minh CK//AB.

Các bạn ơi mik cần gấp lắm,giúp mik vs.Cảm ơn hen!

Tìm y:       y : 4 = 1527;  y = ?

A.  6108               

B.  6180                

C.6118                  

D.  6208 

Trong các khai triển sau, khai triển nào sai?

A.  1 + x n = ∑ k = 0 n C n k x n − k

B.  1 + x n = ∑ k = 0 n C n k x k

C.  1 + x n = ∑ k = 1 n C n k x k

D.  1 + x n = C n 0 + C n 1 . x + C n 2 . x 2 + ... + C n n . x n