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限时规范练34(选修7 Unit 4）
核心素养关键词：培养学生人与社会、志愿服务的素养能力意识
一、阅读理解
Hamburgers,French fries，potato chips，popcorn,and pizza。There is no denying the foods are tasty。But often，it’s the added salt that makes them so appealing.One result:U.S。kids are eating too much salty fare。
Table salt is about 40％ sodium （钠）。Our bodies need some sodium to work properly.But too much of it is not healthy.
A recent study by the Centers for Dia Control （CDC) looked at the eating habits of 2,142 children between the ages of 6 and 18。It found that their average sodium intake was 3，256 milligrams per day。That equals nearly 1。5 teaspoons each day,which is 50％ more than current guidelines recommend.
Zerleen Quader is the study’s lead author.“Eating too much sodium now can t kids up for health problems later,” she said。
Much of the sodium that kids eat comes from procesd foods。But potato chips and other salty snacks aren’t the only culprits。There are other sodium sources — like bread and cold cuts — adding to the salt overload。
All this added salt can rai blood pressure and，with it,the risk of a heart attack and other health problems.Today,1 in 9 children has raid blood pressure.There’s good news though。Lowering salt intake can lower blood pressure.
That，of cour,is easier said than done.The more salty foods you eat，the more you de
velop a taste for them。The key to changing your diet is to start small。“Small changes in sodium in foods are not usually noticed，" Quader says。Eventually，she adds,the effort will ret a kid’s taste buds （味蕾) so the salt desires stop.
Need a little inspiration？ Dietitian Bridget Murphy advis focusing on the immediate effects of a diet that is high in sodium。High blood pressure can make it difficult to be active。“Do you want to be able to think clearly and perform well in school?” she asks。“If you're an athlete,do you want to run faster?" If you answered yes to the questions，then it’s time to shake the salt habit.
1。What did the recent CDC study find?
A.American kids have too much salt。
B.Teenagers have good dietary habits。
C.The prent advid salt intake is too high.
D。Proper sodium intake benefits human health.
2.Which of the following is clost in meaning to the underlined word “culprits” in Paragraph 5?
A。Criminals. B.Results.
C.Types. D。Surpris.
3.What is Quader's advice for kids？
A。Eat salt—free foods.
B。Have a low-sodium diet。
C.Keep away from junk food。
D.Take enough exerci regularly。
4.According to Murphy，a salty diet will probably 。
A。help you have a quick mind
B。increa your running speed
C。make you relatively inactive
D.keep you hungry but spirited
二、完形填空
Born in Senegal's capital of Dakar,Seydou was interested in Chine culture even in his childhood and hoped to visit China when he grew up.After 1 from a local high school,he came to know about the CRBC's scholarship offer and 2 the opportunity to finally 3 China with his own eyes.
Upon arrival in China he faced many 4 。The first tback was language,becau without the 5 ,there isn’t much you can do in China.In order to 6 as quickly as possible to his 7 life，his first priority was to learn Chine，which 8 a great challenge for the young man.
At first，as the obvious science student,he tried to find some sort of general 9 rule between Chine characters and their 10 。But later,he found none.There are 11 small hints to guess the pronunciation，but each time，he has to 12 the dictionary to double check。
Moreover，after 13 a new word or ntence，he must look for a way to 14 it in our daily life.His efforts are paying 15 :Just six months after his arrival in China，he won first place at the Chang'an University’s Chine CRBC speech competition for international students。
