2021版高考英语大一轮复习Unit2Healthyeating练习新人教版必修3

Unit 2 Healthy eating

Ⅰ.阅读

A

(2019安徽五校联盟质检)

We humans are addicted to sugar.That makes sense.All animals need sugar to live.It’s the fuel that powers our cells.So it’s not surprising that we’re born to want the sweet stuff.

Sugar stores the sun’s energy like a battery.After a meal,your body breaks down foods into their building blocks.It uses some sugar for energy right away.The rest get stored for the body to break down later.It’s a myth that sugar makes you extremely excited,but having a sugary snack can give you a quick burst of energy.That’s because the sugar in sweet foods is easy for your body to turn into fuel.When you eat other kinds of foods,like vegetables,it takes longer for your body to break the sugar down.

These days it’s easy to find sweet snacks.Sodas,candy,cakes and even foods that seem healthy,such as yogurt,can be packed with sugar.Food makers add sugar,because they know that to humans,sweet makes everything taste better.Americans eat about 20 teaspoons of extra sugar every day.That’s way more than what is good for us.

Eating too much sugar can cause more than a stomachache.It can make people overweight,decay the teeth and even cause diabetes.However,experts aren’t worried about naturally sweet foods—the problem is added sugar.So go ahead and enjoy sweet apples or even sugar-rich carrots that are also full of vitamins and other good stuff.

Even cake is great once in a while,as long as you don’t overdo it.After all,no one wants life to be dull.And your body needs its fuel! 1.The first two paragraphs are mainly developed by .

A.cause and effect B.problem and solution C.giving examples D.making comparisons

2.People may be tricked into eating too much sugar because . A.no one wants life to be boring B.we’re born to want the sweet stuff

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C.so-called healthy food can be packed with sugar

D.sugar is the fuel for the plants and animals on the earth 3.What does the author want to stress in Paragraph 4?

A.We’d better say no to sweet foods. B.Experts are worried about added sugar.

C.Eating too much sugar is bad for our health. D.We’d better consume sugar from natural sources.

4.What can be a suitable title for the text? A.Sugar Is Everywhere B.Sugar Brings Happiness C.Why Do We Love Sugar? D.Why Does Sugar Make Us Fat?

语篇解读:本文是一篇说明文。糖能给人体提供必需的能量,且易分解,人天生需要糖分;虽然甜食尝起来可口,但是我们不要过多食用。 答案及剖析:

1.A 写作手法题。根据第一段尾句“So it’s not surprising that we’re born to want the sweet stuff”和第二段倒数第二句“That’s because the sugar in sweet foods is easy for your body to turn into fuel”,并结合第一、二段的内容可知,第一段解释了人天生需要糖的原因;第二段解释了甜食能快速补充能量的原因;据此可推知,第一、二段是通过解释因果的方法组织内容的,故A项正确。

2.C 细节理解题。根据第三段第一、二句“These days it’s easy to find sweet snacks. Sodas,candy,cakes and even foods that seem healthy,such as yogurt,can be packed with sugar”可知,甜食随处可见,即使是看起来健康的食品也会含有大量糖分,故人们会误食很多含糖食品。

3.D 推理判断题。通读第四段可知,该段第一、二句介绍了食用过量的糖的害处;第三句说明专家对添加糖分的食品的担忧;第四句紧接着提出建议:吃富含糖但也富含维生素和其他有益成分的天然食物。据此可推知,该段旨在强调,我们最好食用天然食物来摄入糖分,故D项正确。

4.C 标题归纳题。通读全文可知,糖能给人体提供必需的能量,且易分解,人天生需要糖分;虽然甜食尝起来可口,但是食用过量的糖有害人体健康,我们最好食用不但富含糖分,还含有维生素和其他有益成分的天然食物。故C项最适合作本文标题。

B

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(2020山东模考)

Organic food is very popular.It is also expensive.Some organic food costs twice as much as non-organic food,but new parents and pet owners are willing to pay up to 200% more for organic food.However,there are people who think it is a waste of money.

There is one main difference between organic and non-organic food.Organic farms do not use agricultural chemicals,such as pesticides (杀虫剂).In many countries organic foods have special labels.These guarantee that the products are natural.

Some people think organic means locally grown.Originally this was true.Over time organic farming became more difficult.The demand for organic food grew larger than the supply.Small companies had to sell out to large companies.There weren’t enough organic ingredients (原料),such as grain and cattle.This made it difficult for many organic companies to stay in business.Today,many large companies have an organic line of products.

Is organic food more nutritious?This is part of the debate.Many farmers and consumers believe it is.They think agricultural chemicals cause health problems such as cancer.Many health professionals disagree.Few studies prove that organic foods prevent health problems.Health specialists worry more about bacteria (病毒),such as E.coli and salmonella.These can get into contact with organic and non-organic food.Doctors recommend washing produce very carefully.Handling meat carefully is important too.

Most people agree that naturally grown food tastes better.Is tastier food worth the extra money?This is a matter of opinion.Whether it is healthier or not may require more research.However,organic consumers argue it is better to be safe than sorry. 5.What is probably the major concern of organic food consumers? A.Price.

B.Safety. C.Freshness.

D.Variety.

6.What is the doctors’ suggestion?

A.Grow your own food. B.Reduce the use of pesticides. C.Make sure the food is clean. D.Buy large companies’ products. 7.Which of the following do most people agree on organic food?

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A.It tastes better. B.It is easier to grow. C.It contains more fat. D.It is more nutritious. 8.Where does this text probably come from? A.A recipe book.

B.A chemistry paper.

C.A medical report D.A health magazine.

语篇解读:本文是一篇有关健康的新闻报道。主要讲述的是人们对有机食品的不同看法和 观点。 答案及剖析:

5.B 推理判断题。根据第二段中提到有机食品未用农业化学物品,以及最后一段中的最后一句However,organic consumers argue it is better to be safe than sorry.可知,他们主要关心的是食品安全问题。

6.C 细节理解题。根据第四段中的最后两句Doctors recommend washing produce very carefully.Handling meat carefully is important too.可知,医生建议要很仔细地清洗农产品,认真处理肉类也很重要。也就是说,医生建议要确保食物是干净的,故选C项。 7.A 细节理解题。根据最后一段中的第一句Most people agree that naturally grown food tastes better.可知,大多数人认为有机食品尝起来味道更好。故选A项。

8.D 推理判断题。文章讲述的是人们对有机食品的看法,由文章中提到的health problems,healthier,safe等词语可知,这篇文章可能摘自健康杂志。 Ⅱ.语法填空

Can wine really improve our health?1. (scientist) are beginning to say,“Yes!”

Researchers have found that red wines contain antioxidants (抗氧化剂),2. help the body resist cancer and heart disease.3. (general),red wines contain more antioxidants than most white wines.So,the best bet for drinking wine for our health is to stick to the dry red wines.However,this doesn’t give us 4. (free) to get drunk every night.Don’t overdo it—but adding a glass of red wine to your daily diet can definitely make 5. difference to our health.

Paracelsus,the noted 16th-century Swiss physician 6. (write),“Wine is a food,a medicine and a poison.It’s just a question of dose(剂量).” As with almost any food or drink,wine 7. (consume) in large doses can do harm to our

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health.

Most health officials agree that one or two four-ounce glasses of red wine per day can be 8. (benefit) to men,while women should limit their consumption to one four-ounce serving per day.

Professor Roger Corder,has spent years studying the evidence of health benefits 9. red wine.In his new book,The Wine Diet,he says he is 10. (convince) that most of us should include red wine in our everyday lifestyle. 答案及剖析:

1.Scientists scientist为可数名词,谓语动词为are,故空处应填复数Scientists,指“科学家们”。

2.which 根据句法可知,空处所填词引导非限制性定语从句,先行词antioxidants指物,且在定语从句中作主语,所以用关系代词which。

3.Generally 空处所填词作状语,修饰整个句子,应用副词Generally。

4.freedom 此处考查give sb. sth.结构,空处作直接宾语,故用名词形式freedom。 5.a make a difference to是固定短语,意为“对……有影响/起作用”。

6.wrote 空处为句子的谓语,根据空前的“the noted 16th-century Swiss physician”可知,句子时态用一般过去时,故此空填wrote。

7.consumed 空处为非谓语动词,wine与consume之间构成被动关系,所以此空填过去分词consumed作后置定语。

8.beneficial be是系动词,后接形容词作表语。be beneficial to意为“对……有益”。 9.from/of 句意:Roger Corder教授已经花了数年研究红酒对健康有好处的证据。空处应填介词from或of,表示“来自……”或“……的”之意。

10.convinced 分析句子可知,句中says后接省略了that的宾语从句。宾语从句主语为he,谓语动词为is,空处应填形容词convinced构成固定句型“sb.is convinced that...”。convinced作形容词时,意为“确信的,深信的”。

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