必修三Unit 2Healthy eating 阅读+完型+语法填空 综合训练

Book 3 Unit 2 综合训练

A卷——主题阅读专攻练

A

(2020·安徽省五校联考)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!

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。

1．The first two paragraphs are mainly developed by ________.

A．cause and effect B．problem and solution

C．giving examples D．making comparisons

解析：选A写作手法题。根据第一段最后一句“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．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

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

D．sugar is the fuel for the plants and animals on the earth

解析：选C细节理解题。根据第三段第一、二句可知，甜食随处可见，即使是看起来健康的食品也会含有大量的糖分，故人们会误食很多含糖食品。

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.

解析：选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．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?

解析：选C标题归纳题。阅读全文可知，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

(2020·重庆一中月考) A large-scale study has found a link between eating a diet based on organic food and having a reduced risk of cancer. If the new results are confirmed, promoting organic food consumption could be a promising preventative strategy against the disease, a team of researchers from several French institutions said.

Among the environmental risks for cancer, there are growing concerns about exposure to