Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Looking for an unforgettable way to celebrate that special occasion? Well, the (1)                   of options open today’s youngster - or even “oldster” for that matter, is a far cry from the traditional party or restaurant visit. No longer is it considered sufficient to invite your friends round, buy some food and get a barker to produce a cake. No, today’s birthday boy or girl is looking for something out of the ordinary, ranging from the outrageously expensive to the downright dangerous. Anything goes, as long as it is unusual and impressive.

Top of this year’s popular (2)________ are as follows: taking some friends rally driving, helicopter lessons, plane trip and parachuting, and hot air ballooning. Then there is always group bungee jumping or taking your buddies on a stomach - churning, while water rafting ride down rapids.

The desire of adventurous celebration is not restricted to the young I recently met an octogenarian (3)             _ celebrated (4)                the milestone of eighty by having a fly lesson.

Of course, if you have money the world is your oyster. A very rich relation of mine flew fifty of his friends to a Caribbean island to mark the passing of his half century. Unfortunately I was only a distant relation.

Undoubtedly, the more traditional forms (5)              celebration do continue to satisfy the less extravagant or less adventurous among us. However, with my own half century looming on the horizon I would not say no to a weekend in Paris and a meal at the Eiffel Tower. I can but dream. Perhaps by the time I’m eighty I’ll be able to afford it.

Điền vào số 1

A. scale

B. degree

C. range

D. variance

Sợi đốt làm bằng chất gì? Vì sao sợi đốt là phần tử rất quan trọng của đèn?

Hiđrocacbon X có CTPT C₈H₁₀ không làm mất màu dung dịch brom. Khi đun nóng X trong dung dịch KMnO₄ tạo ra hợp chất Y có CTPT là C₇H₅KO₂. Khi cho Y phản ứng với dung dịch HCl tạo ra hợp chất Z có CTPT là C₇H₆O₂.  X có tên gọi nào sau đây 

A. etylbenzen

B. 1,4- đimetylbenzen

C. 1,2- đimetylbenzen

D. 1,3- đimetylbenzen.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 28 to 34.

        Esperanto is what is called a planned, or artificial, language. It was created more than a century ago by Polish eye doctor Ludwik Lazar Zamenhof. Zamenhof believed that a common language would help to alleviate some of the misunderstandings among cultures.

        In Zamenhof’s first attempt at a universal language, he tried to create a language that was as uncomplicated as possible. This first language included words such as ab, ac, ba, eb, be, and ce. This did not result in a workable language in that these monosyllabic words, though short, were not easy to understand or to retain.

        Next, Zamenhof tried a different way of constructing a simplified language. He made the words in his language sound like words that people already knew, but he simplified the grammar tremendously. One example of how he simplified the language can be seen in the suffixes: all nouns in this language end in o, as in the noun amiko, which means “friend”, and all adjectives end in -a, as in the adjective bela, which means “pretty”. Another example of the simplified language can be seen in the prefix mal-, which makes a word opposite in meaning; the word malamiko therefore means “enemy”, and the word malbela therefore means “ugly” in Zamenhof’s language.

        In 1887, Zamenhof wrote a description of this language and published it. He used a pen name, Dr. Esperanto, when signing the book. He selected the name Esperanto because this word means “a person who hopes” in his language. Esperanto clubs began popping up throughout Europe, and by 1950, Esperanto had spread from Europe to America and Asia.

        In 1905, the First World Congress of Esperanto took place in France, with approximately 700 attendees from 20 different countries. Congresses were held annually for nine years, and 4,000 attendees were registered for the Tenth World Esperanto Congress scheduled for 1914, when World War I erupted and forced its cancellation.

        Esperanto has had its ups and downs in the period since World War I. Today, years after it was introduced, it is estimated that perhaps a quarter of a million people are fluent in it. This may seem like a large number, but it is really quite small when compared with the billion English speakers and billion Mandarin Chinese speakers in today’s world. Current advocates would like to see its use grow considerably and are taking steps to try to make this happen.

The topic of this passage is _________.

A. how language can be improved 

B. a language developed in the last few years 

C. one man’s efforts to create a universal language 

D. using language to communicate internationally

Khi nói về sự phận bố cá thể trong quần thể sinh vật, phát biểu nào sau đây không đúng?

A. Phân bố theo nhóm là kiểu phân bố phổ biến nhất, giúp các cá thể hỗ trợ nhau chóng lại điều kiện bất lợi của môi trường

B. Phân bổ ngẫu nhiên thường gặp khi điều kiện sống phân bố đồng đều trong môi trường và không có sự cạnh tranh gay gắt giữa các cá thể trong quần thể

C. Phân bố đồng đều có ý nghĩa làm giảm mức độ cạnh tranh giữa các cá thể trong quần thể

D. Phân bố theo nhóm thường gặp khi điều kiện sống phân bố đồng đều trong môi trường, có sự cạnh tranh gay gắt giữa các cá thể trong quần thể

Phát biểu nào sau đây chưa chính xác? Tần số hoán vị gen được tính bằng:

A. tỷ lệ phần trăm số giao tử mang gen hoán vị trên tổng số giao tử sinh ra.

B. tỷ lệ phần trăm số cá thể mang kiểu hình khác bố mẹ trên tổng cá thể thu được trong phép lai phân tích.

C. tỷ lệ phần trăm giữa số cá thể có trao đổi chéo trên tổng số cá thể thu được trong phép lai phân tích.

D. tỷ lệ phần trăm số giao tử mang gen liên kết trên tổng số giao tử sinh ra

Read the following passage on transport, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

(1) As the twentieth century began, the importance of formal education in the United States increased. The frontier had mostly disappeared and by 1910 most Americans lived in towns and cities. Industrialization and the bureaucratization of economic life combined with a new emphasis upon credentials and expertise to make schooling increasingly important for economic and social mobility. Increasingly, too, schools were viewed as the most important means of integrating immigrants into American society.

(2) The arrival of a great wave of southern and eastern European immigrants at the turn of the century coincided with and contributed to an enormous expansion of formal schooling. By 1920 schooling to age fourteen or beyond was compulsory in most states, and the school year was greatly lengthened. Kindergartens, vacation schools, extracurricular activities, and vocational education and counseling extended the influence of public schools over the lives of students, many of whom in the larger industrial cities were the children of immigrants. Classes for adult immigrants were sponsored by public schools, corporations, unions, churches, settlement houses, and other agencies.

(3) Reformers early in the twentieth century suggested that education programs should suit the needs of specific populations. Immigrant women were once such population. Schools tried to educate young women so they could occupy productive places in the urban industrial economy, and one place many educators considered appropriate for women was the home.

(4) Although looking after the house and family was familiar to immigrant women, American education gave homemaking a new definition. In preindustrial economies, homemaking had meant the production as well as the consumption of goods, and it commonly included income-producing activities both inside and outside the home, in the highly industrialized early-twentieth-century United States, however, overproduction rather than scarcity was becoming a problem. Thus, the ideal American homemaker was viewed as a consumer rather than a producer. Schools trained women to be consumer homemakers cooking, shopping, decorating, and caring for children "efficiently" in their own homes, or if economic necessity demanded, as employees in the homes of others. Subsequent reforms have made these notions seem quite out-of-date. 

The word "it" in line 19 refers to _____.

A. education

B. consumption

C. production

D. homemaking