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九年级阅读理解解析Where does the meat on our table come from

时间:2018-08-09 16:39  作者:David  来源:本站整理

 Where does the meat on our table come from? It usually comes from livestock like chickens, pigs and cows. However, did you know that meat can also be made in a lab? American company Just has announced* that lab-grown meat could be on some restaurant menus in the United States and Asia by the end of 2018.
    Lab meat is sometimes referred to as clean meat. It is made using the stem* cells of living livestock. The cells need to be grown in a lab for a few weeks. For example, making a hamburger patty takes about nine weeks. This is faster than raising a cow, which usually takes over 20 weeks.
    The first clean meat was a beef burger that was produced in 2013. But its taste was described as quite dry. How does clean meat taste now? People who tried the latest clean meat said that it tasted just like traditional meat.
    Clean meat has other advantages. It is healthier than traditional meat. Meat producers can control what type of fat goes into the meat. They can produce clean meat that contains healthy fats, such as omega-3 fatty acids. This kind of fat is good for people's hearts.
    Clean meat can also help to solve global warming. According to The Washington Post, about 14.5% of the planet's greenhouse gas emissions come from raising livestock. That's more than the emissions from every car, train, ship and airplane in the world combined. It is predicted that using clean meat could lower greenhouse gas emissions by 96%.
    However, the cost of making lab-grown meat is very high at present. With developing technology, scientists hope that they can make lab-grown meat in a cheap way and finally bring this kind of food to our plates.   
(1)According to the passage, lab meat is _______.           
A. hamburger patties                                           B. meat that is washed clean
C. meat from chickens and cows                         D. meat made and produced in a lab
(2)How many advantages of lab meat are mentioned in the passage?           
A. Two.                                   B. Three.                                   C. Four.                                   D. Five. 
(3)Why is clean meat healthier than traditional meat?           
A. Because it is made of stem cells.
B. Because it is produced in clean labs.
C. Because producers can choose the fats that go into the meat.
D. Because producing clean meat doesn't give off greenhouse gasses.
(4)Which of the following is TRUE according to the passage?           
A. It is cheap to produce lab meat.
B. It takes about weeks to make lab meat.
C. Lab meat has been on the restaurant menus.
D. The first lab meat tasted just like traditional meat.
【答案】(1)D
(2)B
(3)C
(4)B 
【考点】说明文  
【解析】【分析】文章大意:主要讲述了在2018年底,在美国和亚洲实验室肉可能会被放到餐桌上。以及实验室肉的优缺点。
(1)细节理解题。根据However, did you know that meat can also be made in a lab?可知实验室肉是在实验室里被制作的,故选D。
(2)细节理解题。通读全文,可知文章提到了三个好处:This is faster than raising a cow, which usually takes over 20 weeks. 指的是生产时间快,It is healthier than traditional meat. 它比传统的肉更健康,Clean meat can also help to solve global warming.
它也能帮助解决全球变暖问题。故选B。
(3)细节理解题。根据Meat producers can control what type of fat goes into the meat.  可知肉生产者能控制什么种类的脂肪进入肉里,故选C。
(4)细节理解题。根据However, the cost of making lab-grown meat is very high at present.可知实验室生产的肉目前成本非常高,故排除A。根据The cells need to be grown in a lab for a few weeks. 细胞需要在实验室生长几周的时间,故B正确。根据American company Just has announced* that lab-grown meat could be on some restaurant menus in the United States and Asia by the end of 2018. 可知2018年底实验室生产的肉才可能被搬上餐桌。根据But its taste was described as quite dry. 可知第一块实验室肉被描述为非常干燥,排除D,故选B。
【点评】考查阅读理解能力。首先通读全文,掌握大意,然后根据问题在文章中找到细节,利用所学的阅读方法,选出正确答案。

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