题目内容
17．听下面五段对话，选出与录音内容相一致的图片．
1．C2．A3．B4．E5．D．
分析 略
解答 CABED
点评 略
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7．Ma Yun，head of Alibaba，is one of ______ persons in the world．（ ）
| A． | rich | B． | richer | C． | richest | D． | the richest |
8．Most of us have three meals a day．We take food for granted（当然）．And we don't think about it．（16）B experts think a food crisis（危机）is coming．This crisis is going to make us（17）Athe way we think about food．
Food is in great need（18）Ca 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 （19）C at least nine billion people．As a result，the food prices get higher and higher．
So，what can a（20）D，crowded world do？One suggestion is to eat （21）Ameat．Meat uses more natural resources（资源）than grains（谷物）．It requires moreB（22）B to produce one pound of meat than to produce one pound of grain．It also requires between 5and 10times more（23）Dthan vegetables．So，eating less meat will （24）Amore land for farming，and it will save water．
To eat less meat，people will need to change their eating habits．That will not be（25）C
Americans，for example，have （26）D 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．（27）Bwill double again by 2050．Growing need of meat wil1 （28）A to put pressure（压力） on natural resources．
World population is increasing，resources are becoming fewer，and food prices are rising．
Therefore，we need to rethink （29）Cwe eat every day．For meat lovers，we don't need to give up meat（30）B．But we need to eat more grains and less meat．
Food is in great need（18）Ca 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 （19）C at least nine billion people．As a result，the food prices get higher and higher．
So，what can a（20）D，crowded world do？One suggestion is to eat （21）Ameat．Meat uses more natural resources（资源）than grains（谷物）．It requires moreB（22）B to produce one pound of meat than to produce one pound of grain．It also requires between 5and 10times more（23）Dthan vegetables．So，eating less meat will （24）Amore land for farming，and it will save water．
To eat less meat，people will need to change their eating habits．That will not be（25）C
Americans，for example，have （26）D 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．（27）Bwill double again by 2050．Growing need of meat wil1 （28）A to put pressure（压力） on natural resources．
World population is increasing，resources are becoming fewer，and food prices are rising．
Therefore，we need to rethink （29）Cwe eat every day．For meat lovers，we don't need to give up meat（30）B．But we need to eat more grains and less meat．
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| 20．A．busy | B．tired | C．thirsty | D．hungry |
| 21．A．less | B．more | C．much | D．little |
| 22．A．time | B．land | C．people | D．place |
| 23．A．air | B．meat | C．money | D．water |
| 24．A．provide | B．produce | C．waste | D．need |
| 25．A．important | B．hard | C．easy | D．necessary |
| 26．A．never | B．seldom | C．hardly | D．always |
| 27．A．It | B．They | C．We | D．That |
| 28．A．continue | B．stop | C．have | D．start |
| 29．A．how | B．when | C．what | D．where |
| 30．A．quickly | B．completely | C．finally | D．especially． |
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