题目内容

By 2050 there will have been an extra 2.5 billion people on earth. And what will they eat?
To solve the problem, we should have to double our food production. We can also develop a diet of algae(海藻), insects and meat grown in laboratories.
Algae can grow very quickly at sea, in polluted water and in places that would normally kill food crops. They are already eaten widely in Japan and China and they are eaten by almost everything from shrimps to blue whales. They can fix CO2 in the atmosphere and provide fats and sugars.
Man-made meat looks like meat, feels like meat and it is meat, although it’s never been from a living, breathing animal. Instead, it is grown from cells in big containers. Moreover, studies show that producing man-made meat will use far less water, energy and land.
China has developed “green super rice”, a series of rice types which produce more grain and have stronger ability to fight against floods, salty water, insects and disease. We used traditional plant breeding(作物育种)techniques to cross-breed more than 250 rice types. Green super rice, which is enough to feed an extra 100 million people, will be planted widely in the coming years.
Insects like ants are not on most European menus but at least 1,400 kinds are eaten across Africa, Latin America and Asia. Now, with rising food prices and worldwide land shortages, such insects are getting more and more popular. Not only are many insects rich in protein(蛋白质), low in fat and high in Ca and Fe, but insect farms need little space. And they can grow well on paper, algae and industrial wastes

  1. 1.

    In order to exist in the future, people have to _______

    1. A.
      move to other planets
    2. B.
      produce rain in laboratories
    3. C.
      build new laboratories for food research
    4. D.
      increase the food production or look for other food sources
  2. 2.

    From the second paragraph we know that _______

    1. A.
      algae have a strong life force
    2. B.
      few people eat algae now
    3. C.
      algae have few values for human beings
    4. D.
      algae can pollute our environment
  3. 3.

    Green super rice _______

    1. A.
      has to be watered with salty water
    2. B.
      can grow even in a bad environment
    3. C.
      includes no more than 250 rice kinds
    4. D.
      was developed with new technologies
  4. 4.

    What can we learn from the passage?

    1. A.
      Green super rice is delicious but high in price
    2. B.
      In Asia about 100 million people may be faced with food shortages
    3. C.
      Man-made meat doesn’t look like meat but has the same taste as real meat
    4. D.
      One of the reasons why many people begin to eat insects is their rich food value
DABD
试题分析:文章主要讲述的未来的生活。到2050年,地球上的人口将增加25亿。到那时,地球该怎样养活这么多人呢?食物的产量不仅要翻倍,同时,还要寻找其它的食物来源。
1.根据“To solve the problem, we should have to double our food production. We can also develop a diet of algae(海藻), insects and meat grown in laboratories.”可知,人们需要把食物的产量翻倍,也可以开发其它食物来源。故选D。
2.根据“Algae can grow very quickly at sea, in polluted water and in places that would normally kill food crops.”可知,海藻的生命力极强,能够在海水里、污水中和其它农作物不能正常生长的地方。故选A。
3.根据第四段“produce more grain and have stronger ability to fight against floods, salty water, insects and disease”可知,绿色超级水稻有更强的能力来抵抗洪水、盐水、昆虫和疾病。故选B。
4.根据最后一段的“Not only are many insects rich in protein(蛋白质), low in fat and high in Ca and Fe...”可知,食用昆虫的原因之一是,它们富含营养成分。故选D。
考点:生活类短文阅读
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     Several animal species including gorillas (大猩猩) the in Rwanda and tigers in Bangladesh could risk
extinction if impact of climate change and extreme weather on their homes is not handled, a UN report
showed on Sunday.
     Released during the course of global climate negotiations in Durban, the report by the United Nations
Food and Agriculture Organisation (UNFAO) shows how higher temperatures, the rise in sea levels,
deforestation and overuse of land have damaged the habitats of certain species, especially in Africa.
"Many ecosystems have already been affected by increasing population, historical and recent
deforestation, short-lasting management practices and even invasive species," Eduardo Rojas, assistant
director general at the UNFAO's forestry department, said at the release of the report.
     The most affected areas include mountains, islands and coastal areas, which limit the possibilities for
animals to move elsewhere and create new habitats. "The remaining populations are limited to very small
ecosystems. They have inbreeding (近亲繁殖) problems.., and at the end these species may disappear,"
he added.
     Other examples of affected animals include elephants in Mall, lions in Serengeti and crocodiles in
Malawi. The report says about 20~30 percent of plant and animal species will be at higher risk of
extinction due to global warming and a significant number of local species may disappear by 2050 as a
consequence. Other consequences could include the spread of invasive species and infectious diseases,
it said.
     The report urges more focus on restoration of damaged ecosystems, especially those key to dealing
with climate change such as inland waters, forests and grasslands. The UNFAO also called for the
creation of movement channels for animals in areas where their movement was affected. The organization
said while more resources (资源) were flowing to biodiversity conservation, more action at th
government and policy level was needed. It also urges local communities to develop projects that ease
the effect of climate change on wildlife, naming ecotourism activities as an example.
1. What does the author tell us in Paragraph 2?
A. The theme of global climate negotiations in Durban.
B. The subject of research done by Eduardo Rojas.
C. Harmful effects of damage done to ecosystems.
D. Causes of damage done to ecosystems.
2. Why are animals living in mountains, islands and coastal areas most affected?
A. They are frequently attacked by invasive species and infectious diseases.
B. They have difficulty finding enough food for survival.
C. They have little chance of moving to other places.
D. They can hardly find mates to produce their young.
3. To avoid extinction of some animal species, the UNFAO suggested all the following ways
       EXCEPT ______.
A. restoring damaged ecosystems
B. limiting world population growth
C. creating movement channels for animals
D. urging governments and local communities to take action
4. What would serve as the best title for the passage?
A. Climate change and ecotourism
B. Human activities and the animal kingdom
C. Gorillas, tigers at risk due to climate change
D. How to balance human development and animal rights

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