三、完形填空（25分）A）请先阅读下面短文，掌握其大意，然后从各小题所给的A、B、C、D四个选项中选出可以填入相应空白处的最佳选项，并在答题卷上将该项涂黑（每小题15分）
24．（15分）Most of us have three meals a day．We take food for granted（想当然）．And we don't think about it．（36） experts argue a food crisis（危机）is coming．This crisis is going to make us（37） the way we think about food．
Food is in great need（38） a growing of world population．By 1960，the population was three billion．It doubled to six billion by 1999．By 2050，this planet will need to（39） at least nine billion people．As a result，the food prices get higher and higher．
So，what can a（40） ，crowed world do？One suggestion is to eat（41） meat．Meat uses more natural resources（资源）than grains（谷物）．It requires more（42） to produce one pound of meat than to produce one pound of grain．It also requires between 5and 10times more（43） than vegetables．So，eating less meat will（44） more land for farming，and it will save water．
To eats less meat，people will need to change their eating habits．That will not be（45） ．Americans，for example，have（46） loved meat．In general，They eat twice as much meat as people in other countries．At the same time，in developing countries like China and Brazil，sales of meat have doubled in the last 20years．（47） will double again by 2050．Growing need of meat wil（48） to put pressure on natural resources．
World population is increasing，resources are becoming fewer，and food prices are rising．Therefore，we need to rethink（49） we eat every day．For meat lovers，we don't need to give up meat（50） ．But we need to eat more grains and less meat．
36．A．And B．But C．Or D．Until
37．A．change B．find C．get D．tell
38．A．instead of B．thanks to C．because of D．as for
39．A．help B．have C．feed D．meet
40．A．busy B．tired C．thirsty D．hungry
41．A．less B．more C．much D．little
42．A．time B．land C．people D．place
43．A．air B．meat C．money D．water
44．A．provide B．produce C．waste D．need
45．A．important B．hard C．easy D．necessary
46．A．never B．seldom C．hardly D．always
47．A．It B．They C．We D．That
48．A．continue B．stop C．have D．start
49．A．how B．when C．what D．where
50．A．quickly B．completely C．finally D．especially
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