3．
digging，relax，beautiful
Americans enjoy many activities．When they are at home，they enjoy reading，watching TV，（81）drawing，playing computer games and so on．The most （82）popular activity，however，is done outside．A new study says more than 40%（83）of the adult（成年的）Americans are gardeners．
According to the study，during the growing season，a gardener （84）usually spends 3or 4hours a week working in his or her garden：（85）digging，cutting，planting and watering．They also spend money on （86）their gardens．Each year American gardeners spend about 25billion dollars （87）buying seeds（种子），plants and plant food that makes their plants （88）grow better．They also buy garden tools and special （89）clothes for working in the garden．
Why do more and more Americans （90）like gardening？Most people do it for （91）fun．To some people，gardening makes their home more （92）beautiful and makes them feel closer to （93）nature．Gardening is also a good way to get exercise （94）and working outside in the fresh air can help them （95）relax．
| popular，fun，usually，their，like，buying，grow，and，clothes，drawing，of，nature， |
Americans enjoy many activities．When they are at home，they enjoy reading，watching TV，（81）drawing，playing computer games and so on．The most （82）popular activity，however，is done outside．A new study says more than 40%（83）of the adult（成年的）Americans are gardeners．
According to the study，during the growing season，a gardener （84）usually spends 3or 4hours a week working in his or her garden：（85）digging，cutting，planting and watering．They also spend money on （86）their gardens．Each year American gardeners spend about 25billion dollars （87）buying seeds（种子），plants and plant food that makes their plants （88）grow better．They also buy garden tools and special （89）clothes for working in the garden．
Why do more and more Americans （90）like gardening？Most people do it for （91）fun．To some people，gardening makes their home more （92）beautiful and makes them feel closer to （93）nature．Gardening is also a good way to get exercise （94）and working outside in the fresh air can help them （95）relax．
20．What ________can we do to stop it？（ ）
| A． | on earth | B． | on the earth | C． | in earth | D． | in the earth |
19．It is one of____international airlines．（ ）
| A． | busy | B． | busier | C． | busiest | D． | the busiest |
15．
Police officers are using networks like Facebook，MySpace，and Twitter to look （51）for and catch criminals（罪犯）．
There are many quiet criminals out there．But （52）Thanks to the Internet age，it's （53）easierto find and catch them than ever before．
Why？Facbeook，of course!Criminals-like just about everyone else in the world-are （54）spengdingtime online talking about their recent lives．And （55）policemen are paying close attention to them．
Take James Roberts who bragged（吹牛）for example，"I've got a new （56）watch!"showing a photo of himself with an expensive watch．Police were able to match the watch with the owner of the （57）lost watch，which was stolen the day before．
The police also use Facebook and MySpace to look for bad activities or even missing people．They've become so （58）useful that the police station has its own．"social media experts"，who go to the Internet to look for news about（59）bad activities．And he's got his work cut out for him．
"You can （60）find a lot of criminals on MySpace； they have their own sites，"said one policeman．"They are talking to each other and we can find what they are doing now and easily catch them．"
| Policeman，lost，buy，watch，bad，find，useful，for，thank，spend，easy，worker |
There are many quiet criminals out there．But （52）Thanks to the Internet age，it's （53）easierto find and catch them than ever before．
Why？Facbeook，of course!Criminals-like just about everyone else in the world-are （54）spengdingtime online talking about their recent lives．And （55）policemen are paying close attention to them．
Take James Roberts who bragged（吹牛）for example，"I've got a new （56）watch!"showing a photo of himself with an expensive watch．Police were able to match the watch with the owner of the （57）lost watch，which was stolen the day before．
The police also use Facebook and MySpace to look for bad activities or even missing people．They've become so （58）useful that the police station has its own．"social media experts"，who go to the Internet to look for news about（59）bad activities．And he's got his work cut out for him．
"You can （60）find a lot of criminals on MySpace； they have their own sites，"said one policeman．"They are talking to each other and we can find what they are doing now and easily catch them．"
14．-What do you think of Joe？
-He is ________ honest boy．And he can play ________ basketball very well．（ ）
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-He is ________ honest boy．And he can play ________ basketball very well．（ ）
| A． | a； a | B． | an；/ | C． | an； the | D． | the；/ |