261023机考雅思阅读 Ensuring our future food supply

261023机考雅思阅读 Ensuring our future food supply-托您的福
261023机考雅思阅读 Ensuring our future food supply
261023机考雅思阅读 Ensuring our future food supply
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261023机考雅思阅读 Ensuring our future food supply
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Part 1

Read the text and answer the questions below.

Ensuring our future food supply

A Climate change and new diseases threaten the limited varieties of seeds we depend on for food. Luckily, we still have many of the seeds used in the past but we must take steps to save them.
B Six miles outside the town of Decorah, Iowa in the US, an 800-acre stretch of rolling fields and woods called Heritage Farm is letting its crops go to seed. Everything about Heritage Farm is in stark contrast to the surrounding acres of intensively farmed fields of corn and soybean that are typical of modern agriculture. Heritage Farm is devoted to collecting rather than growing seeds. It is home to the Seed Savers Exchange, one of the largest non-government owned seed banks in the United States.
C In 1975 Diane Ott Whealy was given the seedlings of two plant varieties that her great-grandfather had brought to America from Bavaria in 1870. Grandpa Ott’s morning glory and his German Pink tomatoes. Wanting to preserve similar traditional varieties, known as heirloom plants, Diane and her husband, Kent, decided to establish a place where the seeds of the past could be kept and traded. The exchange now has more than 13,000 members, and the huge collection of heirloom varieties that have shown up at the exchange includes flowers, tomatoes, and root vegetables the seeds of many thousands of heirloom varieties and, as you walk around an old red barn that is covered in Grandpa Ott’s beautiful morning glory blossoms, you come across the different vegetables, herbs, and flowers they have planted there.
D “Each year our members list their seeds in the Seed Savers Exchange Yearbook, handing over a copy of the Seed Savers Exchange Yearbook. It is as thick as a big-city telephone directory, with page after page of exotic beans, garlic, potatoes, peppers, apples, peaches, and plums-each with its own name and personal history. For example, there’s an Eskimo Yellow Cherry tomato, which was was brought to the seed bank by ‘an elderly Eskimo lady’ who lived in Teller, and a Peruvian Star garlic from a farmer in Sumacantico. There’s also a bean donated by archaeologists searching for pygmy elephant fossils in New Mexico.”
E Heirloom vegetables have become fashionable in the United States and Europe over the past decade, primed by a food movement that emphasises eating locally and preserving the flavour and uniqueness of heirloom varieties. Found mostly in farmers’ markets and boutique groceries, heirloom tomatoes have been squeezed out of supermarkets in favour of modern single-variety fruits and vegetables hard to chip well and have a uniform appearance, to enhance shelf life. But the movement to preserve heirloom varieties goes beyond just the current interest in North America and Europe in tasty, locally grown food. It’s also a campaign to protect the world’s future crop. Most people in the well-fed world give little thought to where their food comes from or how it’s grown. They wonder without acknowledging overwhelming evidence that there may be a problem ahead. We’ve been hearing for some time about the loss of flora and fauna in our rainforests. Very little, by comparison, is said or done about the parallel decline in the diversity of the foods we eat.
F Food variety extinction is happening all over the world – and it’s happening fast. In the United States an estimated 90 percent of historic fruit and vegetable varieties are no longer grown. Of the 7,000 different apple varieties that were grown in the 1800s, fewer than a hundred remain. In the Philippines, thousands of varieties of rice once thrived; now only about a hundred are grown there. In China 90 percent of the wheat varieties cultivated just a hundred years ago have disappeared. Experts estimate that we have lost more than 50 percent of the world’s food varieties over the past 100 years.
G Why is this a problem? Because if disease or future climate change affects one of the handful of plants we’ve come to depend on to feed our growing planet, we might desperately need one of those varieties we’ve let become extinct. The loss of the world’s cereal diversity is a particular cause for alarm. A fungus called Ug99, which was first identified in Uganda in 1999, is spreading across the globe. It has already reached Kenya, Ethiopia, Sudan, and Yemen. By 2007 it had jumped the Persian Gulf from Yemen. Scientists predict that the fungus will soon make its way into India and Pakistan, then expand into Russia and China, and eventually the USA.
H Roughly 90 percent of the world’s wheat has no defence against this particular fungus. If it reached the USA, an estimated one billion dollars’ worth of crops would be at risk. Scientists believe that in Asia and Africa alone, the fungus currently in danger could leave one billion people without their primary food source. A fungus with such catastrophic humanitarian consequences could follow, according to Rick Ward of Cornell University.
I The population of the world is expected to reach nine billion by 2050. Some experts say we’ll need to double our food production to keep up with that growth. Given the added challenge of climate change and disease, it is becoming ever more urgent to find ways to increase food yield. The world has become increasingly dependent upon a technology-driven, one-size-fits-all approach to food supply. Yet the best hope for securing our food’s future may depend on our ability to preserve the locally cultivated foods of the past.

Questions 1-7

Do the following statements agree with the views of the writer in Reading Passage? In boxes 1-7 on your answer sheet, write TRUE FALSE NOT GIVEN
1 Heritage Farm is different from most other nearby farms.
2 Most non-government-owned seed banks are bigger than Seed Savers Exchange.
3 Diane Ott Whealy’s grandfather taught her a lot about seed varieties.
4 The seeds people give to the Seed Savers Exchange are stored outdoors.
5 Diane and her husband choose which heirloom seeds to grow on Heritage Farm.
6 The seeds are listed in alphabetical order in The Seed Savers Exchange Yearbook.
7 The Seed Savers Exchange Yearbook describes how each seed was obtained.

Questions 8-12

Complete the notes below. Choose ONE WORD AND/OR A NUMBER from the passage for each answer. Write your answers in boxes 8-12 on your answer sheet.

The food we grow and eat

Supermarkets
  • sell fruit and vegetables that transport well
  • want fruit and vegetables to be standard in their 8 ________
Public awareness
  • while people know about plants disappearing from 9 ________ very few know about the decline in fruit and vegetable varieties.
Extinction of food varieties
  • less than 10% of the types of 10 ________ once available in the USA are still grown
  • over 11 ________ of food varieties around the world have disappeared in the last 100 years
Current problems in food production
  • a particular fungus is attacking wheat in various countries
  • Rick Ward believes the threat to food supplies in Asia and Africa might lead to a 12 ________
Food production in the future
  • climate change and disease may put pressure on food production
  • twice the amount of food may be needed because of an increase in 13 ________

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