TRƯỜng thpt trần phú ĐỀ chính thứC

Họ, tên thí sinh:..................................................................................... Số báo danh: …..............................

resigned.

he was working.

long time.

If you are an environmentalist, plastic is a word you tend to say with a sneer or snarl. It has become a symbol of our wasteful, throw-away society. But there seems little (21) ______ it is here to stay, and the truth is, of course, that plastics have brought enormous (22) ______ , even environmental ones. It’s not really the plastics themselves that are the environmental evil – it’s the way society chooses to use abuse them.

Almost all the 50 or so different kinds of modern plastics are made from oil, gas, or coal-non-renewable natural (23) ______ . We (24) _______ well over three million tons of the stuff in Britain each year and, sooner or later, most of it is thrown away. A high (25) _______ of our annual consumption is in the (26) ________ of packaging, and this (27) ________ about seven per cent by weight, of our domestic (28) ________ . Almost all of it could be recycled, but very little of it is, though the plastic recycling (29) _______ is growing fast.

The plastics themselves are extremely energy-rich. They have a higher caloric value than coal and one method of “recovery” strongly favored by the plastic manufacturers is the (30) _______ 0f waste plastic into fuel.

In the United States, presidential elections are held in years evenly divisible by four (1888, 1900, 1964, etc.). Since 1840, American presidents elected in years ending with zero have died in office, with one exception. William H. Harrison, the man who served the shortest term, died of pneumonia only several weeks after his inauguration.

Abraham Lincoln was one of four presidents who were assassinated. He was elected in 1860, and his untimely death came just five years later. James A. Garfield, a former Union army general from Ohio, was shot during his first year in office (1881) by a man to whom he wouldn't give a job. While in his second term of office (1901), William McKinley, another Ohioan, attended the Pan-American Exposition in Buffalo, New York. During the reception, he was assassinated while shaking hands with some of the guests. John F. Kennedy was assassinated in 1963 in Dallas only three years after his election.

Three years after his election in 1920, Warren G, Harding died in office. Although it was never proved, many believe he was poisoned. Franklin D. Roosevelt was elected four times (1932, 1936, 1940 and 1944), the only man to serve so long a term. He had contracted polio in 1921 and eventually died of the illness in 1945.

- "Yes. I'd like to buy a camera."

- "Yes, but my employer insisted that I _______on time."

- “ _______________ .”

Long ago prehistoric man began to domesticate a number of wild plants and animals for his own use. This not only provided more abundant food but also allowed more people to live on a smaller plot of ground. We tend to forget that all of our present-day pets, livestock, and food plants were taken from the wild and developed into the forms we know today.

  As centuries passed and human cultures evolved and blossomed, humans began to organise their knowledge of nature into the broad field of natural history. One aspect of early natural history concerned the use of plants for drugs and medicine. The early herbalists sometimes overworked their imaginations in this respect. For example, it was widely believed that a plant or part of a plant that resembles an internal organ would cure ailments of that organ, Thus, an extract made from a heart-shaped leaf might be prescribed for a person suffering from heart problems.

  Nevertheless, the overall contributions of these early observers provided the rudiments of our present knowledge of drugs and their uses.