题目内容
We’ve all seen them: perfectly toned famous people on late-night television telling us that we too can develop rock-hard abdominal muscles（腹肌）. It’s easy! Just pay $149.99 for the Torso Track or $149.75 for the Ad-Doer and watch those unwanted inches leave your waist. Americans spend tens of million of dollars on various products to firm up their fat around the waist.
And did they work? Not necessarily. Independent studies have concluded that most of these products-no matter who approved them or how expensive they are-shape your midsection no better than old-fashioned stomach crunches（仰卧起坐）. Some can even cause injury-like the $518.99 Body Shaper-Q8SP, which left electrical burns on some researchers at the University of Wisconsin, La Crosse. Others, like the popular Ab-Doer, trpically burn less energy than a gentle walk, according to a study to be published in September by the American Council on Exercise.
The fact is that many Americans don’t have the biological makeup to develop an obvious abdominal muscles. They are either unable to get the necessary muscle mass or they can’t lose enough fat to make a difference. Even if the underlying muscles are well developed, and it takes to hide it is one-sixteenth of tan inch of fat. That’s enough to dismiss most healthy women as well as plenty of guys who do crunches every day.
So what works best? In its new study, the exercise experts researched on the results of the popular Ab-Doer. A lengthy TV advertisement promises that just 10 minutes a day performing such movements as “Body Boogies” and “Good Mornings” will “help form those muscles the fun and easy way without diets.” Steven Loy, professor at California State University, Northridge, tested the promise by measuring the electrical activity produced by the abdominal muscles during three Ab-Doer movements. He and his colleagues then compared the results with those produced during traditional exercises. They determined that the muscles were no more active, and in some cases less so, when exercisers were using the Ab-Doer.
Taking a broader approach, researchers at San Diego State University compared 13 abdominal exercises for their ability to develop the central abdominal muscles. They concluded, in a report published in May, that the most effective exercises kept turning the body and worked the muscles the entire time. Among the winners: the bicycle movements-so called because it looks as if you are riding a bike while lying flat on the floor-and exercises performed on the “Captain’s Chair”, a product typically found in gyms that helps hold the body in the air while you raise your legs up toward your chest. Researchers suggested that a varied routine of the different exercises could deliver the best results.
1.Which of the following is the most effective in building abdominal muscles?
A．Torso Track. B．Ab-Doer.
C．Captain’s Chair. D．Body Shaper-Q8SP.
2.According to the author, it’s difficult for many Americans to get visible firm abdominal muscles mainly because .
A．they do not put in enough efforts
B．injuries interrupt their exercise frequently
C．they change their exercise routine regularly
D．how big their muscles will be is determined by birth
3.The author convinces the readers by .
A．describing successful eases B．offering professional connects
C．presenting findings of researches D．comparing advertisements of products
4.What’s the main purpose of this passage?
A．To research and develop in order to create the perfect stomach and exercise machine.
B．To promote proven exercise techniques and to advise against false advertisements.
C．To indicate that diet and exercises are necessary factors for a fit midsection.
D．To sponsor rich healthy lifestyle based on advanced product research.
CDCB
【解析】略
阅读下面短文，掌握其大意，然后从各题所给的四个选项（A、B、C、D）中，选出最佳选项，并在答题卡上将该项涂黑。
We recently treated our new-adult son and his girlfriend to a seafood feast, near Cocoa Beach, Florida. Our server, a grandmotherly woman skilled in the art of___36_____, flew around the ___37_____juggling dishes and drinks while treating customers as individuals. She remembered their ____38_____tastes likes and dislikes –all of which she’d learned after only the briefest ____39_____.
At the end of the meal, she presented the bill, and then went to____40_____ the growing crowd of other dinners. My husband ___41____with a credit card, added her___42____, and we were off.
“Mr. Goldsmith!” our waitress ran out of the dining room waving a receipt at him, “Thank you.”
He looked at her as though he didn’t __43_____. We’ve all seen that universal___44___ of confusion—eyebrows drawn together and head cocked to one side
“What did you give her?” I asked in a stage whisper, ____45___if he had done something __46___ or made a calculation error.
“Wow, Dad,” our son said, ___47___like an awestruck 10 –year-old. “I’ve never seen a waitress ____48____anyone out of the restaurant to say ‘thank you’ for the tip.
“She gave us great service. I just thought she deserved a little bump __49_____ what I usually give.”
It wasn’t until later, when I accidentally heard our ___50____retelling the story of the ___51___waitress, that I realized she had given my family something___52___ a “thank you”. She showed our son the importance of ___53_____hard work and the rewarding sound of “thank you”. Her show of thanks helped a dad earn a bit more ___54___from a loving son. And it reminded me just why I ___55____this thoughtful, caring man.
trying out solar power to leam about the technology and