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Unit 4 Living Planet 同步练习同步练习 Period Three Grammar 基础落实基础落实 用所给词的适当形式填空用所给词的适当形式填空 1 The train leaves at 5 So we still have two hours leave 2 I feel of the subject because it s so tiring tire 3 I m with the marks you have got this time please 4 I saw the horse to a tree tie 5 Even father was deeply move 6 Tom had his leg while playing football break 7 I was greatly and made up my mind to study hard from now on encourage 8 I m sorry I have left some of your questions unanswer 单项填空单项填空 1 to his work he has no time to stay with his family A Devoting B Was devoted C Devoted D Being devoted 2 The traffic problems we are looking forward to seeing have attracted the government s attention A solving B solve C to solve D solved 3 Please remain the winner of the prize will be announced soon A seating B seated C to seat D to be seated 4 To learn English well we should find opportunities to hear English as much as we can A speak B speaking C spoken D to speak 5 Why are you looking so Ken The outdoor concert tomorrow will be put off A disappointed to be held B disappointing holding C disappointing being held D disappointed held 6 Alexander tried to get his work in the medical circles A to recognize B recognizing C recognize D recognized 7 in her most beautiful skirt the girl tried to make herself at the party A Dressed noticed B Dressing noticed C Dressed noticing D Dressing being noticing 8 Every year Tom remembers to have some flowers to his mother on her birthday A send B sent C sending D being sent 9 At present many workers in private factories usually get by week A pay B paying C paid D to pay 10 In April thousands of holidaymakers remained abroad due to the volcanic ash cloud A sticking B stuck C to be stuck D to have stuck 能力提升能力提升 阅读理解阅读理解 A If there is one thing I m sure about it is that in a hundred years from now we will still be reading newspapers It is not that newspapers are a necessity Even now some people get most of their news from television or radio Many buy a paper only on Saturday or Sunday But for most people reading a newspaper has become a habit passed down from generation to generation The nature of what is news may change What basically makes news is what affects our lives the big political stories the coverage of the wars earthquakes and other disasters will continue much the same I think there will be more coverage of scientific research though It s already happening in areas that many directly affect our lives like genetic 基因 engineering In the future I think there will be more coverage of scientific explanations of why we feel as we do as we develop a better understanding of how the brain operates and what our feelings really are It s quite possible that in the next century newspapers will be transmitted 传送 electronically from Fleet Street and printed out in our own home In fact I m pretty sure that how it will happen in the future You will probably be able to choose from a menu making up your own newspapers by picking out the things you want to read sports and international news etc I think people have got it wrong when they talk about competition between the different media 媒体 They actually feed off each other Some people once foresaw that television would kill off newspapers but that hasn t happened What it read on the printed page lasts longer than pictures on a screen or sound lost in the air And as for the Internet it s never really pleasant to read something just on a screen 1 What is the best title for the passage A The best way to get news B The changes of media C Make your own newspaper D The future of newspaper 2 What will probably be in the newspaper made by yourself A Sports and international news B A menu of important news C The most important news D What you are interested in 3 From the passage we can infer A newspapers will win the competition among the different media B newspapers will stay with us together with other media C television will take the place of newspapers D the writer believes some media will die out 4 The underlined phrase feed off in the last paragraph means A depend on B compete with C fight with D kill off B Talking plants might sound like characters in a fairy tale But recent scientific studies have shown that plants communicate with each other and with other living things in a surprising number of ways To understand them scientists say we just have to learn their language Farmers are especially interested in what plants have to say Plants are able to communicate with all sorts of organisms 有机体 They can communicate with giant bacteria with other plants and with insects They do this chemically said Cahill an Ecology Professor of the University of Alberta in Canada Plant scientists are just beginning to understand this chemical language Cahill says studies have shown for example that plants can evaluate conditions in their immediate environment and take appropriate actions Plants have an ability for example to signal pain or discomfort caused by anything from temperature extremes to an insect attack Jack Schultz a professor of chemical ecology at the University of Missouri says when a plant senses that it s being eaten it cannot walk away from trouble on the contrary it will release a chemical vapor that alerts other plants nearby Their language is a chemical language and it involves chemicals that move through the air that are easy to be changeable and most of all are smells that we are familiar with Schultz explained All plants responded to the attack by changing their chemistry to defend themselves Schultz recalled But we were quite surprised to find that nearby plants also changed their chemistry to defend themselves even though they were not part of the experiment Studies have also shown that plants under attack release pleasant chemicals Those chemicals attract friendly insects that attack the pests eating the plant In the end plants ability to communicate their needs and our ability to understand them could help farmers reduce the use of poisonous chemicals cut operating costs and limit damage to the environment 5 The recent scientific studies have shown that plants can A communicate with other living things in a chemical way B hardly react to any sudden change in temperature C use a very special chemical language which is familiar t

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