閱讀理解
     Scientist Florence Wambugu works with farmers in Kenya, a country in East Africa. She helps them
grow bigger and better crops. Wambugu is especially interested in finding simple ways to produce more
food.
     In the past ten years, Wambugu has spent much of her time studying sweet potatoes, which are an
important food in her part of Kenya. A virus (病毒) kept attacking the plants. It stopped the sweet
potatoes from growing well. Because of the virus, some farmers lost three quarters of their crops.
     Wambugu went to war against the virus. Her research for a way to save the sweet potatoes led to a
lab in St. Louis, Missouri.
     The lab mainly works on genes (基因), the chemical "computer programs" found in the cells of living
things. Genes tell a plant to produce pink flowers or an animal to grow black hair. Now scientists have
found ways to move genes from one living thing to another. That process is called genetic engineering.
     Wambugu spent three years in the lab. As a result, she created a sweet potato plant that could fight off
the virus. Wambugu tested her research in Kenya, and her plants produced wonderful sweet potatoes.
     That's just the beginning, Wambugu believes. Genetically modified (轉(zhuǎn)基因的) foods, she thinks, could help farmers in poor countries grow badly needed crops, thus, fewer people will go hungry.
1. The text is written mainly to _______.
A. tell us sweet potatoes are in danger of being attacked by a virus
B. introduce Wambugu's contribution to genetic engineering
C. introduce a new way of killing plant viruses
D. tell how hard Wambugu worked in her lab for three years
2. What caused Wambugu to set up a lab in St. Louis, Missouri?
A. Her wish to save sweet potatoes in Kenya.
B. Her great interest in genetic engineering.
C. Her love for sweet potatoes.
D. Her interest in plant life.
3. The fourth paragraph mainly explains what ________ is.
A. a crop virus
B. chemical technology
C. a computer program
D. genetic engineering
4. What is Wambugu's attitude toward "genetic engineering"?
A. It will help more hungry people.
B. It should be carefully used.
C. It has more disadvantages than disadvantages.
D. It is a too expensive technology at present.
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科目：高中英語(yǔ) 來(lái)源：0118 月考題 題型：閱讀理解

閱讀理解。
     Directions: Read the following passage. Fill in the numbered blanks by using the information for the
passage. Write NO MORE THAN 3 WORDS for each answer.

     A Low-Carbon Economy (LCE) refers to an economy which has a minimal emission of greenhouse gas
(GHG), namely, carbon dioxide into the biosphere (生物圈). Recently, most of the scienti sts and the public
hold the opinion that the climate is changing because there is such an accumulation of CO2 in the atmosphere
due to human activities. The over-concentration of these gases is producing global warming that affects
long-term climate, with negative impacts on humanity in the foreseeable future. LCE, therefore, is proposed
as a means to avoid catastrophic climate change.
     All nations which are considered carbon intensive societies and societies which are heavily populated
should become zero-carbon societies and economies. Several of these countries have promised to become
'low carbon' but not entirely zero carbon, and claim that emissions will be cut by 100% by balancing emissions
rather than ceasing all emissions.
     Nuclear power and the strategies of carbon capture and storage (CCS) have been proposed as the primary
means to achieve a LCE while continuing to exploit non-renewable resources. Scientists are afraid, however,
whether the spent-nuclear-fuel can be stored, and whether it is secure. Also they are not certain about the
costs and time needed to successfully implement CCS worldwide and whether the stored emissions will leak
into the biosphere or not. Alternatively, many have proposed renewable energy should be the main basis of a
LCE, but, they have their associated problems of high-cost and inefficiency; this is changing, however, since
investment and production have been growing significantly in recent times. Furthermore, it has been proposed
that to make the transition to an LCE economically attractive we would have to attach a cost (per unit output)
to GHGs through means such as emissions trading and/or a carbon tax .
     A LCE is aimed to integrate all aspects of itself from its manufacturing, agriculture, transportation to
power-generation around technologies that produce energy and materials with little GHG emission and thus
around populations, buildings, machines and devices which use those energies and materials efficiently and
dispose of or recycle its wastes so as to have a minimal output of GHGs.
Title:   1  
I.   2   : an economy with a minimal output of GHG
II.   3   of the present economy:
     ● global warming
     ● long-term climate change
     ●   4   on humanity
III.   5   :
     ● to produce energy and materials with little GHG emission
     ● to use those energies and materials efficiently
     ● to have   6   of GHGs
IV.   7   to achieve a LCE:
      ● nuclear power
      ● the strategies of carbon capture and storage
     ● renewable energy
     ●   8   
     ● a carbon tax
V.   9   :
     ● spent-nuclear-fuel storage / storage of spent-nuclear-fuel
     ●   10    
     ● uncertainty about the costs and time needed

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