Read the following passage and mark the letter A, B, C, or D on your answer sheet to in­correct answer to each of the questions

FOOD FIRST

How much do you know about the history of some of your favorite you know when people in England started cooking curry dishes? Do you know in which country pizzas or hamburgers were first made? The factsmight surprise you.

Many people think the English found out about curry from people in India in the 1600s. In reality, wealthy English people were eating dishes made with curry spices hundreds of years before British ships traveled to India. Cooks of wealthy English families during the time of King Richard I were making curry dishes, and in fact, the word “curry” can be found in an English language cookbook as far back as 1377.

As for pizza, this dish was probably first made in Persia (what is now Iran). The Persians were eating round, flat bread with cheese in the 500s. That was nearly 1,000 years before pizza caught on in Naples, Italy!

Finally, let’s look at the truth behind hamburgers. Many people think hamburgers are an American food. However, according to some stories, hamburgers came from Hamburg,
Germany. A German named Otto Kuasw created the first hamburger in 1891. Four years later,
German sailors introduced hamburgers to Americans.

Where foods come from isn’t nearly as important as how they taste; as long as they are delicious! So, go get some of yourfavorite food and dig in.

41. What is the main idea of this reading?
A. Curry was created in England. B. There are many foods that help your body.
C. People created fast food long ago. D. Some facts about foods are surprising.
42. Which is probably true about British curry dishes in the 1400s?
A. The dishes did not have meat. B. The spices cost a lot.
C. People ate curry on special days. D. British sailors first made curry.
43. What did people in Naples learn from Persians?
A. How to make pizza B. How to cook cheese
C. How to use spices from Iran D. How to make flat bread
44. Who introduced hamburgers to America?
A. Persians B. Otto Kuasw C. Italians D. German sailors

45. Which food was probably made first?
A. Hamburgers B. Cheesy Persian bread

C. Italian pizza D. English curry

Nguyên tố H có 2 đồng vị là 1H và 2H, nguyên tố O có 3 đồng vị là 16O,17O và 18O.Hỏi có bao nhiêu loại phân tử H2O được tạo thành từ các đồng vị trên và có phân tử khối bằng 20 ?

Tổng số hạt cơ bản trong phân tử A2B là 140, trong đó số hạt mang điện nhiều hơn số hạt không mang điện là 44. Số hạt mang điện trong hạt nhân A lớn hơn số hạt mang điện trong hạt nhân B là 11.Số p của A, B lần lượt là:
A.20 và 7 B.19 và 8 C.11 và 8 D.19 và 16

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

The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. People of different cultures are more prone to contract certain illnesses because of the characteristic foods they consume.

That food is related to illness is not a new discovery. In 1945, government researchers realized that nitrates and nitrites (commonly used to preserve color in meat) as well as other food additives caused cancer. Yet, these carcinogenic additivesremain in our food, and it becomes more difficult all the time to know which ingredients on the packaging labels of processed food are helpful or harmful.

The additives that we eat are not all so direct. Farmers often give penicillin to cattle and poultry, and because of this, penicillin has been found in the milk of treated cows.

Sometimes similar drugs are administered to animals not for medicinal purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue.

A healthy diet is directly related to good health. Often we are unaware of detrimental substances we ingest. Sometimes well-meaning farmers or others who do not realize the consequences add these substances to food without our knowledge.

46. The word “fit” is closest in meaning to __________.

A. athletic B. adaptable C. suitable D. tasty

47. The word “prone” is closest in meaning to __________.

A. supine B. unlikely C. healthy D. predisposed

48. The word “these” refers to_____________.

A. researchers B. nitrates and nitrites C. meats D. colors

49. What are nitrates used for?

A. They preserve flavor in packaged foods B. They cause the animals to become fatter

C. They are the objects of research D. They preserve the colour of meat

50. All of the following statements are TRUE EXCEPT __________.

A. Researchers have known about the potential hazards of food additives for more than forty-five years.

B. Drugs are always given to animals for medical reasons

C. Food may cause forty percent of the cancer in the world.

D. Some of the additives in our food are added to the food itself and some are given to the living animals.