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Students ________（觉得最容易的)to learn a new concept by hearing a teacher explainit are learning through learning. （find)
Not ________（让你知道这个计划) ahead of time is just to keep it secret. （let)After graduating from college, I took some time off to go travelling, ______（其结果是)a wise decision.（turn) 答案:which turned out （to be)
With ________（房价上升)all the time, complaints can be heard everywhere.（go)________（吃药)three times a day, and then you will find the pain will go away by andby. （take)
The performance was about to begin when the news came ________（暴风即将来临).（way)
________（无论哪个队获胜)on Saturday will go through to the national championships.（whichever)
We were lucky ________（没有受伤)in the train accident.（injure)The doctor gave an order in the hospital that smoking ________（禁止). （permit)Human beings are different from animals in ________（他们能够使用)language as atool to communicate. （use)
亚热带地区四季分明，植物能接受外界光照、温度变化的刺激。某些植物通过调节各种激素的合成，使其冬天休眠，夏天生长，如下图所示。有关叙述正确的是
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A．10℃条件有利于过程①、②、③、④，30℃条件有利于过程①、③、⑤、⑥B．冬天休眠时，植物体内的赤霉素和脱落酸的含量都会增加C．长日照条件能促进过程②、④，短日照条件能促进过程⑤、⑥D．由图可知，植物的休眠和生长都只由一种激素调节完成
植物生命活动调节的基本形式是激素调节，下面是有关植物激素的知识及实验研究，请根据有关信息分别回答下列问题。植物激素对植物的生长发育具有显著调节作用，植物的生长发育是由多种激素相互协调、共同调节的，下表是植物不同部位各种激素的相对浓度，请分析后回答：
（1)植物体内除了上述四种激素外，还有_______，其作用是促进植物果实的成熟。（2)比较茎尖和伸长茎中各种激素的含量，同时从细胞学基础来分析植物的生长，说明生长素和赤霉素主要通过促进___\__而促进生长，细胞分裂素主要通过促进________而促进生长。（3)分析上表可知，成熟叶中含有较多的脱落酸而不含细胞分裂素，科学家通过进一步分析研究得知：脱落酸可抑制核酸、蛋白质的合成并提高核酸酶的活性，从而促进核酸的降解，使叶片衰老，而细胞分裂素则抑制叶绿素、核酸和蛋白质的降解，抑制叶片衰老。所以在生产中可利用细胞分裂素作保鲜剂。请你设计—个实验证明细胞分裂素有延缓叶片衰老的作用。①实验原理：叶绿素逐渐丧失是叶片衰老最明显的特点，离体叶片很快就会出现衰老的特点，因此可通过__________来证明。②实验步骤：第一步：选取________叶片若干片，平均分为两组，分别标记为甲、乙；第二步：在甲组叶片的局部位置涂上一定浓度的细胞分裂素，乙组叶片_______；第三步：________。③实验结果预测及结论：______\_，_________。
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1 ．Only when you learn to respect others ,__________（别人会尊重你) ．（respect) 2 ．Had I followed your advice to take with my umbrella ,I ________（就不会淋雨) ,so now I am running a high fever.（catch) 3 ．________（他们过着多么艰辛的生活) before they became famous !（What) 4 ．________（他被选中)as an actor in the film made the family delighted.（choose) 5 ．Not ________（收到他的邀请) ,I didn't go to his wedding party.（receive) 6 ．Since the beginning of the vacation ,I __________（旅游)across the country ,and my next stop is Mount Tai.（travel) 7 ．The international agreement ,________（计划)to encourage children not to smoke and help people kick the habit ,was signed yesterday.（intend) 8 ．If your order is ready ,the T －shirt ________（送达你处)as soon as possible.（deliver) 9 ．Professor Smith ,along with his assistants ,____________（研究这个项目)day and night to meet the deadline.（work) 10 ．Such poets as Shakespeare are widely read ,of whose works ,however ,some ______ （难以理解) ．（understand)
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Children should be encouraged to explore __________（他们感兴趣的任何事物). （appeal)The prices of houses, ________（就如经常报道的那样), have been going up sharplyin the past few months. （report)
Without your timely help, we ______（会陷入)big trouble that day. （fall)Another important project we are going to carry out is ________（所称谓的)NationalEducation. （call)
It is Shanghai Expo ________（使中国成为焦点)again all over the world, and manypeople are wondering what the new giant is going to be in the future. （focus)
It is commonly thought that many coal mine accidents ________（本来能够避免)if wehad followed the strict safety rules. （avoid)
If Jack had scored that goal, we ________（就会赢得那场足球赛了). （win)The education programme ________（旨在)combining brain work with manual labor isbeing widely spread throughout the country. （aim)
Were it to rain tomorrow, the sports meet __________（推迟)until the same time nextweek. （put)
It's pity that he failed the exam. If he ________（更加注意)on his handwriting, hewould have done better. （concentrate)
关于植物激素的叙述，正确的是
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A．生产啤酒时利用赤霉素处理大麦种子可降低成本B．具顶端优势的枝条，其侧芽部位因生长素浓度过低而不生长C．细胞分裂素促进细胞衰老，乙烯促进果实生长D．植物激素的合成不受环境因子的影响