完成句子
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)
下列有关植物激素调节的叙述，不正确的是
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A．使用一定浓度的生长素处理扦插枝条，能提高插条的成活率B．使用一定浓度的赤霉素处理芹菜幼苗，能提高芹菜的产量C．使用一定浓度的脱落酸处理浸泡过的小麦种子，能提高种子的萌发率D．使用一定浓度的乙烯利处理凤梨，能让凤梨提前上市
完成句子
On her birthday she received a box of chocolates with a card ________（附在上面)saying "happy birthday!" （attach)
It is said that the ancient coins accidently ________（在武汉发现的)last month are veryvaluable. （find)
Deeply ________（专注于她的新小说), the young writer kept thinking and writing fora dozen hours in her study. （absorb)
I have been living in the United States for twenty years, but little ________（我感到)solonely as now. （feel) 答案:have I felt
"It is not only you but also Tom ______（应当受到责备), " said the teacher after knowingwhat had happened. （blame)
You will find that some of the stars are brighter in the evening and others ______（不够明亮). （little)
Only when you read between the lines several times ________（你才能理解) the mainidea of this passage. （sense)
The reason why people carry umbrellas in hot summer days is that ______（暴露在烈日下)may be harmful to the skin. （expose)
The program ________（提出)by him, I think, is practical. （forward)Two children are lost in the village and the police ________（调查)the case thesedays. （look)
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
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：______\_，_________。