山东省青岛市黄岛区2019-2022学年高二上学期英语期末试卷汇编：七选五（含答案）
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| 名称 | 山东省青岛市黄岛区2019-2022学年高二上学期英语期末试卷汇编：七选五（含答案） |  | |
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山东省青岛市黄岛区
2019-2022学年高二上学期英语期末试卷汇编
七选五
山东省青岛市黄岛区2021-2022学年高二上学期期末考试英语试题
第二节（共5小题；每小题2.5分，满分12.5分）
阅读下面短文，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
You may not consider yourself the patient type. Maybe your first-grade teacher pointed this out when you were pulling the door open before the bell even sounded. As a grown-up, maybe you press the “close door” button in the elevator many times. You’re not alone.____36____
The time we save to get to our destination faster is not worth the price we pay for our health. As we all know, in traffic making rash decisions can send yourself and others to hell.____37____ A 2011 study, for example, suggests it may even be making us fat. If you want your satisfaction right now regardless of future benefits, you are going to have that extra dessert or that extra ice cream. ____38____ And if you’re constantly anxious, your sleep could be affected, too.
However, it’s not easy to be patient. The first thing to do is to recognize that you have a problem. ____39____ One of them is that your environment isn’t conforming (符合) to your expectations. Another is that you’re not conforming to your expectations of yourself.
There are all kinds of every-day situations that test patience. Once you’ve found that cause, though, it will be a lot easier to break the bad habit. Most importantly, once we understand what makes us impatient isn’t within our control, we can change the way we understand that situation. If you’ve made it, congratulations. ____40____
A. It will help us stay healthy.
B. You’re already on your way.
C. So learning to be patient is important.
D. Besides, being impatient could cause anxiety.
E. Impatience has become a sign of a troubled society.
F. Impatience usually happens during several situations.
G. In addition, there are plenty of links between impatient people and many health issues.
山东省青岛市黄岛区2020-2021学年高二上学期期末考试英语试题
第二节（共5小题；每小题2.5分，满分12.5分）
阅读下面短文，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
If your family or group of friends loves to bike, then a bike trip makes a perfect vacation. _____16_____ Because you move more slowly on a bike, you have a chance to really sink into your environment, observing wildlife and views that you might miss otherwise.
_____17_____ If you have unskilled bikers or kids in your group, you’ll probably all be happiest if you keep your mile goals fairly modest. But a group of more experienced bikers can make more serious mile goals.
An easy way to travel is to camp along the way. You can book campsites ahead of time at campgrounds along the way, and ride into camp as late as you like. _____18_____ Invest in a light-weight tent, and light-weight inflatable pads (充气垫) under your sleeping bag.
If you’re going to be traveling on trails (小径), you’ll want to ride a mountain bike during your trip. On the other hand, if your route is wholly along roads, you can ride a lighter-weight street bike. Or, you can put heavier-weight tires on a street bike. _____19_____
If you have a lot of time, you can cover quite a bit of distance. Over the course of a long trip, you’ll get stronger and you’ll be able to go further in one day. _____20_____ You might want to rest a day or two early in your travels to give your body some rest.
A. Biking is becoming more and more popular.
B. Avoiding hurt is another thing you should concern.
C. Keep in mind that some camping equipment is heavy.
D. Check in with your local bike shop for suggestions on tire weight.
E. However, remember that early in the trip you’ll start every day feeling tired.
F. Seeing the world from the seat of a bike is a wonderful way to experience new places.
G. As you plan your trip, the biggest decision to make is how far you’d like to travel each day.
山东省青岛市黄岛区2019-2020学年高二上学期期末考试英语试题
第二节：根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Many scientists believe our love of sugar may actually be an addiction. When we eat or drink sugary foods, the sugar enters our blood and affects parts of our brain that make us feel good.
___16___In this way, it is in fact an addictive drug, one that doctors recommend we all cut down on.
“It seems like every time I study an illness and trace a path to the first cause, I find my way back to sugar,” says scientist Richard Johnson. One-third of adults worldwide have high blood pressure, and up to 347 million have diabetes. Why “ ___17___“ says Johnson.
Our bodies are designed to survive on very little sugar. Early humans often had very little food, so our bodies learned to be very efficient in storing sugar as fat. In this way, we had energy stored for when there was no food. But today, most people have more than enough. ___18___
So what is the solution It’s obvious that we need to eat less sugar. ___19___From breakfast cereals to after-dinner desserts, our foods are increasingly filled with it. Some manufacturers even use sugar to replace taste in foods that are advertised as low in fat.
But there are those who are fighting back against sugar. ___20___Other schools are growing their own food in gardens, or building facilities like walking tracks so students and others in the community can exercise. The battle has not yet been lost.
A. We take in more energy and fat.
B. Then the good feeling goes away, leaving us wanting more.
C. Our ancestors were used to poor food, clothing and shelter.
D. So the very thing that once saved us, may now be killing us.
E. Sugar, we believe, is one of the reasons, if not the major one.
F. The trouble is, in today's world, it's extremely difficult to avoid.
G. Many schools are replacing sugary desserts with healthier options like fruit.
答案：
山东省青岛市黄岛区2021-2022学年高二上学期期末考试英语试题
【答案】36. E 37. G 38. D 39. F 40. B
【解析】
【分析】本文是一篇说明文，主要讲的是没有耐心的坏处和要如何做才能有耐心。
【36题详解】
空格前说“As a grown-up, maybe you press the “close door” button in the elevator many times. You’re not alone.（作为一个成年人，也许你在电梯里按了很多次“关门”按钮。你不是一个人。）”，说明很多人都是这么没有耐心，E选项“Impatience has become a sign of a troubled society.（不耐烦是这个不安的社会的标志）”说明了这个社会很多人不耐烦，因此E选项承接上文，符合语境，故选E。
【37题详解】
空格后说“A 2011 study, for example, suggests it may even be making us fat.（例如，2011年的一项研究表明，它甚至可能使我们发胖。）”，说明不耐烦会对健康有影响，G选项“In addition, there are plenty of links between impatient people and many health issues.（此外，不耐烦的人与许多健康问题之间有很多联系。）”说明了不耐烦对健康有影响，因此G选项承上启下，符合语境，故选G。
【38题详解】
空格后说“And if you’re constantly anxious, your sleep could be affected, too.（如果你经常焦虑，你的睡眠也会受到影响。）”，D选项“Besides, being impatient could cause anxiety.（此外，没有耐心会引起焦虑。）”中的“anxiety”和空格后的“anxious”相一致，因此D选项承接下文，符合语境，故选D。
【39题详解】
空格后说“One of them is that your environment isn’t conforming (符合) to your expectations. Another is that you’re not conforming to your expectations of yourself.（其中之一就是你所处的环境不符合你的期望。另一个原因是你不符合自己对自己的期望。）”，F选项“Impatience usually happens during several situations.（不耐烦通常在几种情况下发生。）”中的“several situations”和后面的“One of them”及“Another”相呼应，因此F选项承上启下，符合语境，故选F。
【40题详解】
空格前说“If you’ve made it, congratulations.（如果你成功了，恭喜你。）”，B选项“You’re already on your way.（你已经上路了。）”承接上文，继续表明你已经成功了，因此B选项承接上文，符合语境，故选B。
山东省青岛市黄岛区2020-2021学年高二上学期期末考试英语试题
【答案】16. F 17. G 18. C 19. D 20. E
【解析】
这是一篇说明文。文章主要介绍了自行车旅行这种旅行方式。就如何计划自行车旅行，自行车的选择等问题提出了一些建议。
【16题详解】
根据下文“Because you move more slowly on a bike, you have a chance to really sink into your environment, observing wildlife and views that you might miss otherwise.”（因为你骑自行车走的比较慢，所以你有机会真正融入你的环境，观察野生动物和你可能错过的景色。）可知，本句是在说明坐在自行车上看世界这种体验方式，后文则说明了这一方式的优点，F选项“坐在自行车上看世界也是一种体验新地方的奇妙的方式”符合语境，故选F项。
【17题详解】
根据下文“If you have unskilled bikers or kids in your group, you’ll probably all be happiest if you keep your mile goals fairly modest. But a group of more experienced bikers can make more serious mile goals.”（如果你的团队里有不熟练的自行车手或孩子，那么骑行里程的目标定的很低的话，你可能会感到快乐。但是一群更有经验的自行车骑手可以制定更严肃的旅程目标。）可知，段是在讲关于骑行的目标制定的问题。G选项“当你计划你的旅行时，你要做的最大的决定是你每天想要骑行多远”符合语境，故选G项。
【18题详解】
根据上文“An easy way to travel is to camp along the way. You can book campsites ahead of time at campgrounds along the way, and ride into camp as late as you like.”（一个简单的旅行方式是沿途露营。你可以在沿途的露营地提前预定露营地点，然后骑到露营地，想多晚就多晚。）以及下文“Invest in a light-weight tent, and light-weight inflatable pads (充气垫) under your sleeping bag.”（投资一个轻便的帐篷和你的睡袋下面的轻便的充气垫。）可知，本段在讲露营设备的问题。C选项“请记住，某些露营设备很重。”承接上下文，故选C项。
【19题详解】
根据上文“If you’re going to be traveling on trails (小径), you’ll want to ride a mountain bike during your trip. On the other hand, if your route is wholly along roads, you can ride a lighter-weight street bike. Or, you can put heavier-weight tires on a street bike.”（如果你打算在小路上旅行，你会想在旅途中骑辆山地车。另一方面，如果你的整个路线都在公路上，你可以骑一辆重量较轻的自行车，或者你可以给一辆街头自行车装上更重的轮胎。）可知，本段是在说明关于选择重量轻还是重的自行车的问题，上文提到选择更重的轮胎，那么本句承接上文说明可以向自行车商店查询轮胎重量的建议。故D选项“向你当地的自行车商店查询轮胎重量的建议”符合语境，故选D项。
【20题详解】
根据上文“If you have a lot of time, you can cover quite a bit of distance. Over the course of a long trip, you’ll get stronger and you’ll be able to go further in one day.”（如果你有足够的时间，你可以骑行很远的距离。在数周的旅行过程当中，你会变得更强壮，一天之内也能够骑行的更远。）以及下文“You might want to rest a day or two early in your travels to give your body some rest.”（你可能想要在旅途中早休息一两天，让你的身体得到一些休息。）可知，本段主要讲旅途中身体休息的问题，在旅途的初期，你每天一开始就会觉得很累，所以最好在旅途中早休息两天。让你的身体得到一些休息。E选项“但是要记住，在旅途初期，你每天一开始就会觉得很累”符合语境，故选E项。
山东省青岛市黄岛区2019-2020学年高二上学期期末考试英语试题
【答案】16. B 17. E 18. D 19. F 20. G
【解析】
这是一篇说明文。文章主要介绍了许多科学家认为吃糖会上瘾，并引发疾病。为此，人们应该减少摄入糖分，一些学校开始用水果代替甜点，或者步行道让学生们加强锻炼。
【16题详解】
根据下文In this way, it is in fact an addictive drug, one that doctors suggest we all cut downon.可知，这里强调以这种方式，糖会使我们门上瘾，医生也建议我们要减少食用。因此横线处应该是说明糖为什么会使人上瘾。故B项（Then the good feeling goes away, leaving us wanting more）然后这种感觉消失，我们需要更多糖分。引出下文，符合语境。故正确答案为B。
【17题详解】
根据上文“One-third of adults worldwide have high blood pressure, and up to 347 million have diabetes. Why ”（ 世界上有三分之一的成年人患有高血压，高达3亿4700万的人患有糖尿病。为什么？）可知，下文应是介绍原因的。故E项（Sugar, we believe, is one of the reasons, if not the major one）我们认为，糖是原因之一，即使不是主要原因。承接上文，符合题意。故选E。
【18题详解】
根据上文“Early humans often had very little food, so our bodies learned to be very efficient in storing sugar as fat. In this way, we had energy stored for when there was no food.”可知，早期人类通常很少有食物，所以我们的身体学会了非常有效地将糖储存为脂肪。这样，我们就可以在没有食物的时候储存能量。这是在说明糖分的好处，紧接着Bu today转折，意味着横线处是强调糖分摄入过分的害处。故D（So the very thing that once saved us, may now be killing us.）曾经救过我们的东西现在可能正在致我们于死地，承上启下，符合语境。故选D。
【19题详解】
根据上文“It’s obvious that we need to eat less sugar.”和下文 “From breakfast cereals to after-dinner desserts, our foods are increasingly filled with it”可知，我们需要减少糖的食用，但是事实上从早餐到晚餐我们的食物中含有大量的糖。也就是说橫线处是对我们不得不吃糖这一事实的说明。故F项（The trouble is, in today's world, it's extremely difficult to avoid），问题是，在当今世界，这是极难避免的，承上启下，符合语境。故选F。
【20题详解】
根据上文“But there are those who are fighting back against sugar”可知，有些人已经开始与糖分做斗争，故下文应列举具体斗争的方法。故G项（Many schools are replacing sugary desserts with healthier options like fruit.）许多学校正在选用更健康的食物例如水果代替含糖甜点，承上启下，符合题意。故选G。
2019-2022学年高二上学期英语期末试卷汇编
七选五
山东省青岛市黄岛区2021-2022学年高二上学期期末考试英语试题
第二节（共5小题；每小题2.5分，满分12.5分）
阅读下面短文，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
You may not consider yourself the patient type. Maybe your first-grade teacher pointed this out when you were pulling the door open before the bell even sounded. As a grown-up, maybe you press the “close door” button in the elevator many times. You’re not alone.____36____
The time we save to get to our destination faster is not worth the price we pay for our health. As we all know, in traffic making rash decisions can send yourself and others to hell.____37____ A 2011 study, for example, suggests it may even be making us fat. If you want your satisfaction right now regardless of future benefits, you are going to have that extra dessert or that extra ice cream. ____38____ And if you’re constantly anxious, your sleep could be affected, too.
However, it’s not easy to be patient. The first thing to do is to recognize that you have a problem. ____39____ One of them is that your environment isn’t conforming (符合) to your expectations. Another is that you’re not conforming to your expectations of yourself.
There are all kinds of every-day situations that test patience. Once you’ve found that cause, though, it will be a lot easier to break the bad habit. Most importantly, once we understand what makes us impatient isn’t within our control, we can change the way we understand that situation. If you’ve made it, congratulations. ____40____
A. It will help us stay healthy.
B. You’re already on your way.
C. So learning to be patient is important.
D. Besides, being impatient could cause anxiety.
E. Impatience has become a sign of a troubled society.
F. Impatience usually happens during several situations.
G. In addition, there are plenty of links between impatient people and many health issues.
山东省青岛市黄岛区2020-2021学年高二上学期期末考试英语试题
第二节（共5小题；每小题2.5分，满分12.5分）
阅读下面短文，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
If your family or group of friends loves to bike, then a bike trip makes a perfect vacation. _____16_____ Because you move more slowly on a bike, you have a chance to really sink into your environment, observing wildlife and views that you might miss otherwise.
_____17_____ If you have unskilled bikers or kids in your group, you’ll probably all be happiest if you keep your mile goals fairly modest. But a group of more experienced bikers can make more serious mile goals.
An easy way to travel is to camp along the way. You can book campsites ahead of time at campgrounds along the way, and ride into camp as late as you like. _____18_____ Invest in a light-weight tent, and light-weight inflatable pads (充气垫) under your sleeping bag.
If you’re going to be traveling on trails (小径), you’ll want to ride a mountain bike during your trip. On the other hand, if your route is wholly along roads, you can ride a lighter-weight street bike. Or, you can put heavier-weight tires on a street bike. _____19_____
If you have a lot of time, you can cover quite a bit of distance. Over the course of a long trip, you’ll get stronger and you’ll be able to go further in one day. _____20_____ You might want to rest a day or two early in your travels to give your body some rest.
A. Biking is becoming more and more popular.
B. Avoiding hurt is another thing you should concern.
C. Keep in mind that some camping equipment is heavy.
D. Check in with your local bike shop for suggestions on tire weight.
E. However, remember that early in the trip you’ll start every day feeling tired.
F. Seeing the world from the seat of a bike is a wonderful way to experience new places.
G. As you plan your trip, the biggest decision to make is how far you’d like to travel each day.
山东省青岛市黄岛区2019-2020学年高二上学期期末考试英语试题
第二节：根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Many scientists believe our love of sugar may actually be an addiction. When we eat or drink sugary foods, the sugar enters our blood and affects parts of our brain that make us feel good.
___16___In this way, it is in fact an addictive drug, one that doctors recommend we all cut down on.
“It seems like every time I study an illness and trace a path to the first cause, I find my way back to sugar,” says scientist Richard Johnson. One-third of adults worldwide have high blood pressure, and up to 347 million have diabetes. Why “ ___17___“ says Johnson.
Our bodies are designed to survive on very little sugar. Early humans often had very little food, so our bodies learned to be very efficient in storing sugar as fat. In this way, we had energy stored for when there was no food. But today, most people have more than enough. ___18___
So what is the solution It’s obvious that we need to eat less sugar. ___19___From breakfast cereals to after-dinner desserts, our foods are increasingly filled with it. Some manufacturers even use sugar to replace taste in foods that are advertised as low in fat.
But there are those who are fighting back against sugar. ___20___Other schools are growing their own food in gardens, or building facilities like walking tracks so students and others in the community can exercise. The battle has not yet been lost.
A. We take in more energy and fat.
B. Then the good feeling goes away, leaving us wanting more.
C. Our ancestors were used to poor food, clothing and shelter.
D. So the very thing that once saved us, may now be killing us.
E. Sugar, we believe, is one of the reasons, if not the major one.
F. The trouble is, in today's world, it's extremely difficult to avoid.
G. Many schools are replacing sugary desserts with healthier options like fruit.
答案：
山东省青岛市黄岛区2021-2022学年高二上学期期末考试英语试题
【答案】36. E 37. G 38. D 39. F 40. B
【解析】
【分析】本文是一篇说明文，主要讲的是没有耐心的坏处和要如何做才能有耐心。
【36题详解】
空格前说“As a grown-up, maybe you press the “close door” button in the elevator many times. You’re not alone.（作为一个成年人，也许你在电梯里按了很多次“关门”按钮。你不是一个人。）”，说明很多人都是这么没有耐心，E选项“Impatience has become a sign of a troubled society.（不耐烦是这个不安的社会的标志）”说明了这个社会很多人不耐烦，因此E选项承接上文，符合语境，故选E。
【37题详解】
空格后说“A 2011 study, for example, suggests it may even be making us fat.（例如，2011年的一项研究表明，它甚至可能使我们发胖。）”，说明不耐烦会对健康有影响，G选项“In addition, there are plenty of links between impatient people and many health issues.（此外，不耐烦的人与许多健康问题之间有很多联系。）”说明了不耐烦对健康有影响，因此G选项承上启下，符合语境，故选G。
【38题详解】
空格后说“And if you’re constantly anxious, your sleep could be affected, too.（如果你经常焦虑，你的睡眠也会受到影响。）”，D选项“Besides, being impatient could cause anxiety.（此外，没有耐心会引起焦虑。）”中的“anxiety”和空格后的“anxious”相一致，因此D选项承接下文，符合语境，故选D。
【39题详解】
空格后说“One of them is that your environment isn’t conforming (符合) to your expectations. Another is that you’re not conforming to your expectations of yourself.（其中之一就是你所处的环境不符合你的期望。另一个原因是你不符合自己对自己的期望。）”，F选项“Impatience usually happens during several situations.（不耐烦通常在几种情况下发生。）”中的“several situations”和后面的“One of them”及“Another”相呼应，因此F选项承上启下，符合语境，故选F。
【40题详解】
空格前说“If you’ve made it, congratulations.（如果你成功了，恭喜你。）”，B选项“You’re already on your way.（你已经上路了。）”承接上文，继续表明你已经成功了，因此B选项承接上文，符合语境，故选B。
山东省青岛市黄岛区2020-2021学年高二上学期期末考试英语试题
【答案】16. F 17. G 18. C 19. D 20. E
【解析】
这是一篇说明文。文章主要介绍了自行车旅行这种旅行方式。就如何计划自行车旅行，自行车的选择等问题提出了一些建议。
【16题详解】
根据下文“Because you move more slowly on a bike, you have a chance to really sink into your environment, observing wildlife and views that you might miss otherwise.”（因为你骑自行车走的比较慢，所以你有机会真正融入你的环境，观察野生动物和你可能错过的景色。）可知，本句是在说明坐在自行车上看世界这种体验方式，后文则说明了这一方式的优点，F选项“坐在自行车上看世界也是一种体验新地方的奇妙的方式”符合语境，故选F项。
【17题详解】
根据下文“If you have unskilled bikers or kids in your group, you’ll probably all be happiest if you keep your mile goals fairly modest. But a group of more experienced bikers can make more serious mile goals.”（如果你的团队里有不熟练的自行车手或孩子，那么骑行里程的目标定的很低的话，你可能会感到快乐。但是一群更有经验的自行车骑手可以制定更严肃的旅程目标。）可知，段是在讲关于骑行的目标制定的问题。G选项“当你计划你的旅行时，你要做的最大的决定是你每天想要骑行多远”符合语境，故选G项。
【18题详解】
根据上文“An easy way to travel is to camp along the way. You can book campsites ahead of time at campgrounds along the way, and ride into camp as late as you like.”（一个简单的旅行方式是沿途露营。你可以在沿途的露营地提前预定露营地点，然后骑到露营地，想多晚就多晚。）以及下文“Invest in a light-weight tent, and light-weight inflatable pads (充气垫) under your sleeping bag.”（投资一个轻便的帐篷和你的睡袋下面的轻便的充气垫。）可知，本段在讲露营设备的问题。C选项“请记住，某些露营设备很重。”承接上下文，故选C项。
【19题详解】
根据上文“If you’re going to be traveling on trails (小径), you’ll want to ride a mountain bike during your trip. On the other hand, if your route is wholly along roads, you can ride a lighter-weight street bike. Or, you can put heavier-weight tires on a street bike.”（如果你打算在小路上旅行，你会想在旅途中骑辆山地车。另一方面，如果你的整个路线都在公路上，你可以骑一辆重量较轻的自行车，或者你可以给一辆街头自行车装上更重的轮胎。）可知，本段是在说明关于选择重量轻还是重的自行车的问题，上文提到选择更重的轮胎，那么本句承接上文说明可以向自行车商店查询轮胎重量的建议。故D选项“向你当地的自行车商店查询轮胎重量的建议”符合语境，故选D项。
【20题详解】
根据上文“If you have a lot of time, you can cover quite a bit of distance. Over the course of a long trip, you’ll get stronger and you’ll be able to go further in one day.”（如果你有足够的时间，你可以骑行很远的距离。在数周的旅行过程当中，你会变得更强壮，一天之内也能够骑行的更远。）以及下文“You might want to rest a day or two early in your travels to give your body some rest.”（你可能想要在旅途中早休息一两天，让你的身体得到一些休息。）可知，本段主要讲旅途中身体休息的问题，在旅途的初期，你每天一开始就会觉得很累，所以最好在旅途中早休息两天。让你的身体得到一些休息。E选项“但是要记住，在旅途初期，你每天一开始就会觉得很累”符合语境，故选E项。
山东省青岛市黄岛区2019-2020学年高二上学期期末考试英语试题
【答案】16. B 17. E 18. D 19. F 20. G
【解析】
这是一篇说明文。文章主要介绍了许多科学家认为吃糖会上瘾，并引发疾病。为此，人们应该减少摄入糖分，一些学校开始用水果代替甜点，或者步行道让学生们加强锻炼。
【16题详解】
根据下文In this way, it is in fact an addictive drug, one that doctors suggest we all cut downon.可知，这里强调以这种方式，糖会使我们门上瘾，医生也建议我们要减少食用。因此横线处应该是说明糖为什么会使人上瘾。故B项（Then the good feeling goes away, leaving us wanting more）然后这种感觉消失，我们需要更多糖分。引出下文，符合语境。故正确答案为B。
【17题详解】
根据上文“One-third of adults worldwide have high blood pressure, and up to 347 million have diabetes. Why ”（ 世界上有三分之一的成年人患有高血压，高达3亿4700万的人患有糖尿病。为什么？）可知，下文应是介绍原因的。故E项（Sugar, we believe, is one of the reasons, if not the major one）我们认为，糖是原因之一，即使不是主要原因。承接上文，符合题意。故选E。
【18题详解】
根据上文“Early humans often had very little food, so our bodies learned to be very efficient in storing sugar as fat. In this way, we had energy stored for when there was no food.”可知，早期人类通常很少有食物，所以我们的身体学会了非常有效地将糖储存为脂肪。这样，我们就可以在没有食物的时候储存能量。这是在说明糖分的好处，紧接着Bu today转折，意味着横线处是强调糖分摄入过分的害处。故D（So the very thing that once saved us, may now be killing us.）曾经救过我们的东西现在可能正在致我们于死地，承上启下，符合语境。故选D。
【19题详解】
根据上文“It’s obvious that we need to eat less sugar.”和下文 “From breakfast cereals to after-dinner desserts, our foods are increasingly filled with it”可知，我们需要减少糖的食用，但是事实上从早餐到晚餐我们的食物中含有大量的糖。也就是说橫线处是对我们不得不吃糖这一事实的说明。故F项（The trouble is, in today's world, it's extremely difficult to avoid），问题是，在当今世界，这是极难避免的，承上启下，符合语境。故选F。
【20题详解】
根据上文“But there are those who are fighting back against sugar”可知，有些人已经开始与糖分做斗争，故下文应列举具体斗争的方法。故G项（Many schools are replacing sugary desserts with healthier options like fruit.）许多学校正在选用更健康的食物例如水果代替含糖甜点，承上启下，符合题意。故选G。