结合语境，根据汉语提示用单词的适当形式填空。

阅读下列短文，从每题所给的四个选项 （A 、B 、C  和 D ）中，选出最佳选项。

    It is one of the most annoying words in the English language and it seems there is no escaping it．The word “huh?” is in worldwide use, a study found.

    Researchers discovered that languages spoken in countries from Ghana and Laos to Iceland and Italy all include “huh?”, or something that sounds very like it. They said that while the study may sound silly，the word is an absolutely necessary part of speech. Without it and similar words, it would be impossible to show that we haven't heard or understood what had been said and this would lead to constant misunderstandings.

    But while other words used in the same context, such as “sorry” or “what”, vary widely across languages, “huh?” remains unchanged.

    The Dutch researchers carefully studied ten languages from around the world, including Siwu, which is spoken in Ghana, and an Australian Aboriginal language, as well as Italian, Spanish, Dutch and Mandarin Chinese.

    They analysed tapes of recorded conversations for words that sounded like‘‘huh?”and were used to request that whatever had Just been said be repeated. All contained a version of “huh?” The word was also found in another 21 languages. While there were subtle differences in each country, all sounded basically the same.

    This is surprising because normally unrelated languages will use very different words to describe the same thing. For instance, the Japanese for “dog” is “inu”, while the French is “chien”. It is thought that languages around the world have developed their own version of “huh?” because the sound is quick and simple to form, as well as being easily understood.

    The researchers，said that it might seem unimportant to carry out scientific research into a word like “huh?” but in fact this little word is an essential tool in human communication．They also have an answer for those who claim that “huh?” isn't a word. They say that it qualifies because of the small differences in its pronunciation in different languages. It also can be considered a word because it's something we learn to say, rather than a grunt or cry that we are born knowing how to make.

阅读下列短文，从每题所给的四个选项 （A 、B 、C  和 D ）中，选出最佳选项。

    A survey has shown that what you do on a plane can be determined by which nationality is listed on your passport.

    According to the results of an international passenger survey, Australians are the biggest drinkers on board with 36 percent choosing to down the hatch, compared to 35 percent of Americans and 33 percent of Brits.

    The Airline Passenger Experience Association(APEX) spoke to around 1,500 people, aged 18 and older, who have travelled by plane at least once during the last three months and were living in the United States, United Kingdom, Germany, Japan, China, Singapore, Australia and Brazil.

    The results found Chinese travelers are most likely to nod off once the seat-belt sign switches off. They are also the first to take out their credit card for some in-flight shopping and the biggest fans of gaming. Americans on the other hand like to use their time in the air more productively---- when not drinking---- choosing to work while flying at 35,000 feet.

    Meanwhile, Brits and Germans are the best at making chat with random strangers----spending 50 percent more time than any other nationality. Comparatively, Brazilians conduct their conversations online via email, messaging apps or social media.

    Despite plane food having a bad reputation, seven out of ten interviewees said they were happy to eat up on the selection of in-flight snacks and meals. In-flight magazines were also popular with four out of five passengers.

    The international flyers did however express their desire for better in-flight entertainment. “The industry has greatly improved the comfort, entertainment and onboard service, and passengers are accepting those improvements” said Russell Lemieux, APEX executive director. “At the same time, passengers are demanding more from their air travel experiences which will drive more improvements touching all aspects of the journey. ” he added. 

阅读下列短文，从每题所给的四个选项 （A 、B 、C  和 D ）中，选出最佳选项。

    A recent announcement by scientists that they have successfully cloned the first human embryo(胚胎) has caused much debate and has shocked many people around the world. On the one hand, some scientists point out that if you clone an embryo, you can produce valuable tissues(组织) and organs that could be used to save human lives. On the other hand, many people, including some scientists, disagree and fear that if mankind interferes with (干涉) nature in this way, they may be on their way to producing a real-life Frankenstein's monster.

Cloning is producing an exact copy of a plant or an animal using its cells. The first mammal to be cloned successfully from an adult cell was Dolly—the sheep. She was born in 1996 and died in early 2003, at a much younger age than normal. When she was born, many people were angry because they thought cloning would create more diseases in the animal world. However, in general the scientists were praised for their wonderful scientific breakthrough.

    The Scottish scientist who created Dolly, Ian Wilmut, is shocked that some scientists are now considering cloning human beings. Although he researches cloning, he has never thought of creating copies of humans. Instead, he thinks the scientists should concentrate on creating new tissues and organs that could eventually be used to cure diseases like cancer. However, some people consider that cloning human embryos with the intention of destroying them shows no respect for human lives.

    While cloning human embryos is illegal in many countries, some scientists are already pushing ahead with the research so as to deliver a cloned human baby. Severino Antinori, an Italian doctor, is one of the leaders in this field of research. He has declared that he wants to be the first to clone a human being.

In China, scientists have focused their efforts on cloning animals, as well as stem cells to be used in medical research. China has succeeded in producing clones of cows and goats, and continues to research ways in which cloning can benefit mankind.

阅读下列短文，从每题所给的四个选项 （A 、B 、C  和 D ）中，选出最佳选项。

    The National Gallery

    Description：

    The National Gallery is the British national art museum built on the north side of Trafalgar Square in London. It houses a diverse collection of more than 2,300 examples of European art ranging from 13th-century religious paintings to more modern ones by Renoir and Van Gogh. The older collections of the gallery are reached through the main entrance while the more modern works in the East Wing are most easily reached from Trafalgar Square by a ground floor entrance.

    Layout：

    The modern Sainsbury Wing on the western side of the building houses 13th- to 15th-century paintings, and artists include Duccio, Uccello, Van Eyck, Lippi, Mantegna, Botticelli and Memling．

    The main West Wing houses 16th-century paintings, and artists include Leonardo da Vinci, Cranach, Michelangelo, Raphael, Bruegel, Bronzino, Titan and Veronese.

    The North Wing houses 17th-century paintings, and artists include Caravaggio, Rubens, Poussin, Van Dyck, Velazquez, Claude and Vermeer．

    The East Wing houses 18th- to early 20th-century paintings, and artists include Canaletto, Goya, Turner, Constable, Renoir and Van Gogh.

    Opening Hours：

    The Gallery is open every day from 10 am. to 6 pm. (Fridays 10 am. to 9 pm.) and is free, but charges apply to some special exhibitions.

Getting There：

    Nearest underground stations: Charing Cross (2-minute walk), Leicester Square (3-minute walk), Embankment (7-minute walk), and Piccadilly Circus (8-minute walk).

     “Nature does not hurry, yet everything is accomplished.”---Lao Tzu

    If you are in a city where everyone rushes, realize that you don't have to be like everyone else. You can be different. You can walk instead of driving in rush hour traffic. You can be on your iPhone or Blackberry less, and disconnected sometimes. Your environment doesn't control your life---you do. I'm not going to tell you how to give you a step-by-step guide to moving slower.

    ⒈Do less.

    Cut back on your projects, on your task list, on how much you try to do each day.  Pick 2-3 important things--- or even just one important thing--- and work on those first. Save smaller, routine tasks for later in the day, but give yourself time to focus.

    ⒉Meeting are usually a “big waste of time”. And they eat into your day, forcing you to squeeze the things you really need to do into small windows, and making you rush.

    ⒊Start to put off or cancel the unnecessary.

    When you do the important things with focus, without rush, there will be things that get pushed back, and that don't get done. And you need to ask yourself:What would happen if I stopped doing them?

    ⒋Practice mindfulness.

    Don't care so much about future or the past. When you eat, fully appreciate your food. When you are with someone, be with them fully. When you are walking, appreciate your surroundings, no matter where you are.

    Try these things out. Life is better when unrushed. Remember the quote: if nature can get everything done without rushing, so can you.

A. Have fewer meetings.

B. How necessary are these things?

C. Simply learn to live in the present.

D. Focus not on quantity but on quality

E. Give yourself more time to get ready and get there.

F. The world likely won't end if you don't pass one of the examinations.

G. But here are some things to consider and perhaps adopt, if they work for your life.

根据语境，用方框中所给词的适当形式填空。（每个词仅使用一次）

结合语境，根据汉语提示用单词的适当形式填空。