20．Everyone needs water and a diet （33）Ahealthy foods．These foods should （34）Dsome fat，some fiber，a little salt and so on．
People need energy to live．They eat all kinds of foods （35）C change into energy．Our bodies use different （36）Cof energy．The energy is measured in calories．The more （37）Bwe take，the more calories we burn．Even when you are （38）D，you are using energy---about 65calories an hour．While you are at school，or walking home，your body is （39）Bup 100calories an hour．When playing football or basketball，you might be using 400calories an hour．On （40）ADay，during the relay race，you will use most of all，perhaps as （41）Aas 650calories an hour．
The Chinese diet is considered to be the healthiest in the world．It contains a lot of fruit and green vegetables．It is （42）Din fiber and low in sugar and fat．The Chinese eat less sugar than many（43）Bcountries in the world．That is （44）Alots of people in China have white teeth．
People in the Western world do not eat （45）Chealthy foods．They eat too much fat and sugar and don't take （46）Dexercise．Because of this，they （47）Bvery easily．In order to （48）Dwith the quick pace（步伐） of their life and work，they eat a lot of fast food．They eat a lot of sweets，soft drinks，potato crisps，chocolate，butter and ice cream and so on，（49）Care called（50）Afood by some epicureans（美食家）．The result is that many of them become fat．In order to avoid （51）B fat and （52）Cit is advisable（明智的） to eat a balanced diet and not eat too many foods that have a high calorie rating．
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People need energy to live．They eat all kinds of foods （35）C change into energy．Our bodies use different （36）Cof energy．The energy is measured in calories．The more （37）Bwe take，the more calories we burn．Even when you are （38）D，you are using energy---about 65calories an hour．While you are at school，or walking home，your body is （39）Bup 100calories an hour．When playing football or basketball，you might be using 400calories an hour．On （40）ADay，during the relay race，you will use most of all，perhaps as （41）Aas 650calories an hour．
The Chinese diet is considered to be the healthiest in the world．It contains a lot of fruit and green vegetables．It is （42）Din fiber and low in sugar and fat．The Chinese eat less sugar than many（43）Bcountries in the world．That is （44）Alots of people in China have white teeth．
People in the Western world do not eat （45）Chealthy foods．They eat too much fat and sugar and don't take （46）Dexercise．Because of this，they （47）Bvery easily．In order to （48）Dwith the quick pace（步伐） of their life and work，they eat a lot of fast food．They eat a lot of sweets，soft drinks，potato crisps，chocolate，butter and ice cream and so on，（49）Care called（50）Afood by some epicureans（美食家）．The result is that many of them become fat．In order to avoid （51）B fat and （52）Cit is advisable（明智的） to eat a balanced diet and not eat too many foods that have a high calorie rating．
| 33．A．of | B．at | C．above | D．over |
| 34．A．include | B．make up | C．hold | D．contain |
| 35．A．what | B．where | C．which | D．it |
| 36．A．plenty | B．numbers | C．amounts | D．deal |
| 37．A．exercises | B．exercise | C．sport | D．game |
| 38．A．sleepy | B．running | C．working | D．asleep |
| 39．A．running | B．burning | C．wasting | D．adding |
| 40．A．Sports | B．Work | C．Sport | D．Children |
| 41．A．much | B．many | C．few | D．little |
| 42．A．plenty | B．low | C．poor | D．rich |
| 43．A．more | B．other | C．rest | D．others |
| 44．A．why | B．because | C．because of | D．since |
| 45．A．so | B．such | C．much | D．very |
| 46．A．a number of | B．too much | C．masses of | D．enough |
| 47．A．lose weight | B．put on weight | C．die | D．stay healthy |
| 48．A．keep on | B．carry on | C．go on | D．keep up |
| 49．A．as | B．these | C．which | D．they |
| 50．A．junk | B．bad | C．healthy | D．diseased |
| 51．A．to get | B．becoming | C．to become | D．get |
| 52．A．keep thin | B．fall ill | C．keep fit | D．stay calm |