题目

在温室大棚内进行作物种植具有减少水分蒸发，便于调控棚内光照、温度和二氧化碳含量等优点．请你结合所学知识回答下列有关问题： （1） 在作物生长旺盛时期，要定期补充一定量的水分，被吸收到植物体内的水分绝大部分被用于植物的蒸腾作用，这不仅有利于植物体从土壤中吸收水分和有效地散热，还能促进． （2） 对温室内的土栽作物施用有机肥，不仅有利于培养绿色食品，还可增加温室内的二氧化碳浓度，二氧化碳浓度增加的主I grew up in a nice house in a middle-class area in Boston, England, and had a very happy childhood. My mother ________ herself to bringing me and my siblings(兄弟姐妹) up.As a child I was hyperactive and ________ in school. I wouldn’t listen to anyone and thought I ________ everything. At home, I was always breaking things and ________ everyone. Dad was worried, so when I was eight, he took me to boxing classes in an ________ to divert(转移) my energy and keep me out of trouble. It made a huge ________ to the way I saw life and taught me discipline. It also taught me respect, because Dad made it clear that if I didn’t ________ properly, I wouldn’t be able to go back to the gym. ________ it hadn’t been for him, there is no doubt I’d have just ________ my life.Dad was surprised when people at the gym started saying that I had the ________ to be a champion. His ________ had been to keep me off the streets, not to make me a world-class boxer. But he was so proud, ________ when I won a silver medal in the 2004 Olympics. I was only 17 and I know Mum and Dad were ________ for me because I was just a boy, yet I was fighting men.I don’t have to ________ the business side of my career, because Dad oversees all that. He deals with the lawyers, making sure my fight contracts are all up to date and ________ properly.Dad’s always at the ringside during my ________ —his main priority is that I’m safe. Mum ________ coming when the fights got harder, because she couldn’t bear to see the blood. She’ll ________ sit at home or in the hotel, waiting until it’s all over.The boxing world can be a very lonely one, and I’m so ________ every day to have Dad and my whole family behind me. It would be unthinkable if I didn’t have their ________.1.A. addedB. introducedC. devotedD. adapted2.A. cleverB. wealthyC. strongD. naughty3.A. imaginedB. decidedC. knewD. expected4.A. amazingB. inspiringC. comfortingD. annoying5.A. analysisB. attemptC. adviceD. honor6.A. assignmentB. progressC. instructionD. difference7.A. behaveB. expressC. confirmD. complete8.A. IfB. SinceC. WhileD. Unless9.A. begunB. checkedC. wastedD. enriched10.A. presenceB. practiceC. patienceD. potential11.A. contractB. intentionC. responsibilityD. ability12.A. especiallyB. immediatelyC. normallyD. surprisingly13.A. comfortableB. guiltyC. familiarD. scared14.A. give upB. worry aboutC. rely onD. take on15.A. doneB. learnedC. recognizedD. prepared16.A. fightsB. lessonsC. experiencesD. talks17.A. rememberedB. promisedC. stoppedD. considered18.A. justB. yetC. thusD. also19.A. shyB. awkwardC. gratefulD. elegant20.A. respectB. hopeC. supportD. knowledge