Some of the world s most significant problems never hit headlines. One eample comes from agriculture. Food riots(暴乱）and hunger mae news, but the trend lying behind these matters is rarely taled about. This is the decline in the growth in yields of some of the world’s major crops. A new study by the University of Minnesota and McGill University in Montreal loos at where，and how far, this decline is occurring.
The authors tae a vast number of data pointing for the four most important crops； rice，wheat, corn and soybeans. They find that on between 24and 39% of all harvested areas，the improvement in yields that too place before the 1980s slowed down in the 1990s and 2000s. There are two worrying features of the slowdown. One is that it has been particularly sharp in the world's most populous(人口多的) countries，India and China.
Their ability to feed themselves has been an important source of relative stability both within the countries and on world food marets. That self-sufficiency cannot be taen for granted if yields continue to slow down or reverse.
Second，yield growth has been lower in wheat and rice than in com and soybeans, This is problematic because wheat and rice are more important as foods? accounting for around half of all calories consumed. Corn and soybeans are more important as feed grains. The authors note that we have preferentially focused our crop improvement efforts on feeding animals and cars rather than on crops that feed people and are the basis of food security in much of the world. ”
The report qualifies the more optimistic findings of another new paper which suggests that the world will not have to dig up a lot more land for farming in order to feed 9 billion people in 2050, as the Food and Agriculture Organiation has argued Instead，it says，thans to slowing population growth, land currently ploughed (耕）up for crops might be able to revert to forest or wilderness. This could happen. The trouble is that the forecast assumes continued improvements in yields, which may not actually happen. 32. Which crops are mentioned in the tet? A. Rice，corn，soybeans and wheat. B. Rice，corn, wheat and peas.
C. Wheat，corn，soybean and potatoes. D. Corn，wheat, tomatoes and soybeans.
33. What does tlie author try to draw attention to? A. Food riots and hunger in the world. B. The decline of the grain yield growth. C. News headlines in the leading media* D. The food supply in populous countries.
34. Why does the author mention India and China in particular?
A.Their self-sufficiency is vital to the stability of world food marets. B. Their food yields have begun to decrease sharply in recent years- C. Their big populations are causing worldwide concerns. D. Their food self-sufficiency has been taen for granted.
35. What does the underlined word “revert” mean in the last paragraph? A. grow worse
B. put in the place of another C. gain through eperience D. go bac to a previous state
第二节(共5小题;每小题2分，满分10分） 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4选项中有两项为多余选项。
Here are five things that you should give up. Starting today, we will give up on all those things that no longer serve us，and we will embrace change. Ready? Here we go! 36 Give up on your need to blame others for what you have or don’t have, for what you feel or don’t feel. Stop giving your powers away and start taing responsibility for your life.
Give up your limiting beliefs. Give up your limiting beliefs about what you can or cannot do, about what is possible or impossible. From now on, you are no longer going to allow your limiting beliefs to eep you stuc in the wrong place. Spread your wings and fly! A belief is not an idea held by the mind. 37 _
Give up your need to impress others. Stop trying so hard to be something that you're not just to mae others lie you. 38 The moment you stop trying so hard to be something that you're not, the moment you tae off all your mass, the moment you accept and embrace the real you. you will find people will be drawn to you，effortlessly.
Give up on your fears. Fear is just an illusion, it doesn’t eist unless you create it.It's all in your mind. Correcting the inside and the outside will fall into place. _39 Give up your ecuses. 40 Instead of growing and woring on improving ourselves and our lives, we get stuc and lie to ourselves，using all inds of ecuses, ecuses that 99.9% of the time，are not even real. A. Give up on blame. B. Give up complaining. C. It doesn’t wor this way.
D. It is an idea that holds the mind.
E.The only thing we have to fear, is fear itself. F. They ignore their inner voice,that inner calling.
G. A lot of times we limit ourselves because of the many ecuses we use.
第三部分英语知识运用（共两节，满分45分) 第一节完形填空(共20小题；每小题1.5分，满分30分） 阅读下面短文，从短文后各题所给的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项。
My mother had a special way of education. When we grow up, she made us 41 that our life is going to be what we mae it, maing sure we were 42_ for our decisions and the person we would become.
She would say，“It’s your life，43 social comments. ”Then，“What you want and what you get are sometimes two _ 44 different things. ” And then, “No one ever 45 life was fain ” And she would 46 these comments together in such a way that you could never win. a(n) 47 ,but the result was that you realied your life is going to be what you mae it.48 I might go to my mom and say，“I d lie to play footbalL ” And she'd say, “Well，it's your life； if you want to go out there，you might get 49 and brea your nees around the
rest of your life，that's 50 .” Then I would say，44Well, you now 51 that won't happen. Actually I 52 fast on the football field.” And she would reply, “Well，we don't 53 have the money. ” And then I would 54.” Yes，but that’not fain
And she would reply, “Well，life isn't fair. ” Then me： “But I'd really lie to. ” And her： “Yes，but what you want and what you get are sometimes two entirely different things. ”
It was this 55 of these three comments that allowed my mother to 56 us down the right path with her 57 but let us feel as if we were maing the decisions 58 our own. The sum 59
of that advice was，in the end，you’re responsible for the life you lead That's the
best 60 I've ever gotten.
41. A. realie B. forget C. imagine D. doubt 42. A. careful B. fortunate C. responsible D. acceptable 43. A.lie B. plus
C. ecept D. without
44. A. entirely B. deliberately C. regularly D. partly 45. A. informed B. offered
C. new D. said
46. A. mi B. compare C. start D. reply 47. A. dialogue B. opportunity
C. argument D. speech
48. A. So B. Otherwise C. Instead D. Though 49. A. changed B. illed C. injured D.attaced 50. A. available B. believable C. poor D. fine 51. A. even B. surely
C. ever D. quicly
52. A. gather B. move C. turn D. escape 53. A. fail B. hardly
C. necessarily D. really
54. A. completely B. come C.go D. strie 55. Abination B. preference C. choice
D. requirement
56. A. lead B. save C. cover D. raise 57. A. energy B. violence C. silence D. influence 58. A. beyond B. on
C. for D. by
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