题目内容
One reason Americans eat so many calories is that we tend to eat large portions(分量). Studies find that hamburgers and fries are generally offered in serving sizes two to five times larger than the appropriate meal size. Researchers find we usually clean our plates no matter how high they're piled, even if we already feel satisfied. See the suggestions below to further master the fine art of sizing up(估量) your snacks and suppers.
Extremely large portions are one possible reason Americans continue getting fatter even as the percentage of our total calories from fat has gone down in recent years. Fortunately, portions are relatively simple to control because it's easier to count cookies than calories or grams of fat.
Pre-picture portions. Use familiar objects to picture how much you should eat of a food before you pick up your fork or spoon. For example, a half cup of low-fat granola is about the size of your fist. A half cup of low-fat ice cream equals half an orange.
Use a smaller dish. This tip might sound ridiculous, but it works. First and most obvious is that you can't put as much food on, say, a salad plate. But psychologically, you're just not as prone to eat as heartily and quickly if your plate will be empty in 45 seconds.
Have raw vegetables at every meal. Raw cucumbers, tomatoes, carrots, and peppers have few calories and lots of nutrients. A plate of them in the middle of the table almost always gets eaten up, cutting down appetite for the more calorie-dense meat.
Start your meal with soup. Studies show that a bowl of soup at the start of the meal reduces overall meal consumption, since they are lowest in calories and highest in nutrients.
Manage your fork. After every bite of food, put your fork down. Don't pick it up until you have thoroughly chewed and swallowed the previous bite. The goal is both to slow down your eating and to eat less. Remember: Your body needs 20 minutes of digestion before it sends signals to your brain that you are no longer hungry.
Helpful hints on how to get a handle on the how-much factor |
|
Facts |
Hamburgers and fries served in restaurants are generally two to five times the1.______of the proper ones. Americans usually clean their plates 2.______high they're piled, even if they are already satisfied |
Effects |
Americans continue getting fatter even as they have eaten3.______calories from fat in recent years. |
4.______ |
a. Use5.______objects to imagine how much you should eat of a food before a meal. b. Use a smaller dish and thus eat 6._____. c. Have raw vegetables at every meal to cut down 7.______ for the more calorie-dense meat. d. Start your meal with 8.______to reduce meal consumption. e. Put down your fork at9.______to make sure your brain receives10.______that you’re full. |
1.size
2.however
3.fewer
4.Suggestions
5.familiar
6.slowly
7.appetite
8.soup
9.times/ intervals
10.signals
【解析】
1.根据第三行“offered in serving sizes two ”可知平时店里的快餐的量是适应量的两到五倍。
2.根据后面一句中“...no matter how high they're piled...”可知用however="no" matter how
3.根据第二段第一行“...even as the percentage of our total calories from fat has gone down in recent years.”可知就是摄入的卡里路已经下降,因此用fewer。
4.根据文章后面内容可知是作者提出的建议,因此用suggestions。
5.根据第三段“Use familiar objects to picture how much you should eat...”可知填“familiar”。
6.根据第四段中“you're just not as prone to eat as heartily and quickly if your plate will be empty in 45 seconds”可知不会迟的很快,因此用slowly代替。
7.根据第五段中“...cutting down appetite for the more calorie-dense meat...”可推断会减少食欲
8.根据第六段中“Start your meal with soup”,可知用soup。
9.根据最后一段中“...After every bite of food, put your fork down...”和“Your body needs 20 minutes of digestion before it sends signals to your brain that you are no longer hungry”可知每吃完一口就放下叉子,直达完全吃完这口,因为大脑在20分钟后才能接收到吃饱的信号。at intervals 时间间隔,时而
10.同上
The bar-tailed godwit (斑尾鷸)has just broken its own record for the world’s longest non-stop flight, including humans in planes, according to a report made by Lund University Press. The bird can fly non-stop for eight days, while the most impressive man-made airplane can only remain in the sky for 82 hours without a stop.
The bar-tailed godwit’s journey, from Alaska to New Zealand, covers over 6,835 miles. It completes this trip twice a year, in autumn going to New Zealand, and in spring back to Alaska. The tireless bird ends the trip without stopping once for food or rest. All other birds can only finish trips that are twice as short as what the bar-tailed godwit travels.
One reason for the bar-tailed godwit’s success is that it has made the best use of its fuel, which is only 0.41 percent of its body weight over each hour of any given long flight. Hedenstrom, a professor from Lund University, says, “This figure is extremely low compared with other birds.” The bird also has a special body shape that helps it fly easily. It stores body fat and protein to manage its trips. It also travels fast, compared to other birds and animals.
Many questions remain about this bird record holder that never gets lost in the air. Researchers wonder whether it has an inside compass (指南针) that helps it to know the direction. Please watch how beautiful bar-tailed godwits look as they come in for a landing, along with other birds.
1.For the flight from Alaska to New Zealand, the bar-tailed godwit__________
A.doesn’t need to stop to eat |
B.is afraid of hot weather |
C.seems very tired at last |
D.should fly less than 7,000 meters |
2.The main reason why the bar-tailed godwit can break the record is that it ______.
A.eats little food every hour |
B.has a special body shape |
C.stores much water in its body |
D.has very light body weight |
3.The last paragraph tells us that _________.
A.researchers have understood the bird very well |
B.the bird has a very good sense of direction |
C.there are still many who doubt the bird’s ability |
D.the bird has an inner compass |
A.The great impact and progress in genetic engineering B.Worries about privacy protection C.Worries about medical use of genetic engineering D.Genetic knowledge helps to predict diseases E.Genetic knowledge may not be properly used AB.The application of genetic engineering in the medical fields |
1.__________
Current research into the human gene system is helping us understand why people have predispositions(易患某病倾向)to certain diseases.Knowing our genetic makeup can help us to judge whether or not we may be stricken by particular illness, such as cancer.Even before birth, we are able to do genetic screenings to determine what a child's genetic disorder will be.Scientists have already isolated and identified the genes responsible for the more than 4,000 genetic diseases that affect human beings.
2.__________
The implications of this knowledge are astonishing. In addition to predicting genetic predisposition towards diseases, gene therapies may provide new treatments or cures for serious diseases.Millions of people already use genetically engineered drugs to treat heart disease, cancer, AIDS, and strokes (中风). But with the research that is now being conducted, we may find cures to many more diseases.In the near future, genetic experimentation will also allow parents to select the traits of their children. Genetic traits that determine height, weight, eye and hair color will be able to be controlled, and many parents are excited about this potential.
3.__________
Many people, however, are unwilling to accept the possibilities genetic research allowsFor example, one reason some women do not use the largest genetic testing for breast cancer is because they are afraid they will be discriminated against.Another problem is that many people do not want to discover their weakness.What if they learn that they have a disease for which there are no medical cures? How will such knowledge affect their lives? Do people really want to know what they will die of?
4.__________
Many people believe that history has not always shown human decision-making to be bright when it comes to ethical(道德的)choices. Jeremy Rifkin is probably the most well known opponent of genetic engineering. He believes that humans are not responsible enough to experiment with genes and should not “play God” He asks, “Just because it can be done, does that mean it should be done?” He points out that our society will eventually look and act the same if parents select the traits of their children, and he questions the desirability of such a society.
5..__________
One of the fears expressed about genetic experimentation involves privacy. Already blood sample taken from patients in hospitals have been used for genetic research without the patients’ permission. Most people would agree that one’s health and genetic makeup are private concerns. But if insurance companies gain access to this information, it could have a large impact on insurance coverage or costs; if employers gain access to the information, it could have a large impact on hiring or promotion decisions. The possibilities for discrimination are obvious.