摘要：人
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人生有许多美好的东西值得去追求。青春是美好的，是不可复制的，大家正在度过人生最美好的时光，也都在为美好的人生而努力奋斗。初中的生活即将结束，你一定为自己设计了美好的前景，请写出你的想法。
写作提示：1、你追求的人生理想是什么。
2、你正在从哪些方面努力来实现你的理想。
3、如果有一天你实现了理想，你将怎样回报你的父母，回报社会。
写作要求：1、可根据自身实际，自主表达。字数90词左右。
2、逻辑清楚，行文流畅，语句通顺.
3、文中请勿出现真实姓名和校名. 查看习题详情和答案>>
写作提示：1、你追求的人生理想是什么。
2、你正在从哪些方面努力来实现你的理想。
3、如果有一天你实现了理想，你将怎样回报你的父母，回报社会。
写作要求：1、可根据自身实际，自主表达。字数90词左右。
2、逻辑清楚，行文流畅，语句通顺.
3、文中请勿出现真实姓名和校名. 查看习题详情和答案>>
关知识对以上说法进行具体分析。（１０分）
人人都有朋友初中三年同学之间结下深厚的友谊。假设你叫张华，你的笔友李敏在下面这封信中介绍了他的学友，请你写一封70 词左右的回信，说说你好友的基本情况和兴趣爱好。
注意：1、回信的开头和结尾已给出.但不计入总词教：
2、信中请勿使用朋友的真实校名和姓名
Dear Zhang Hua.
How are you? In this letter I’d like to say something about my best friend.
My best friend is Gao Jun. He is fifteen. He is tall with short hair. We are in the sameclass.
Gao Jun is smart and friendly in class, he listens to the teachers carefully At home, he often helps his mother with housework He does well in all his lessons. And he is always ready to help others. So, everyone in our class likes him
Gao Jun seems to have a special interest in writing. He wants to be a writer in the future.
Both of us like playing basketball .We usually play it after class. We feel happy when we are together.I think we will be good friends forever.
What about your best friend? Can you tell me something about him( her)?
Yours.
Li Min.
Dear Li Min.
Thank you for telling me so much about your best friend Gao Jun.
__________________________________________________________________________
__________________________________________________________________________
__________________________________________________________________________
Yours.
Zhang Hua 查看习题详情和答案>>
注意：1、回信的开头和结尾已给出.但不计入总词教：
2、信中请勿使用朋友的真实校名和姓名
Dear Zhang Hua.
How are you? In this letter I’d like to say something about my best friend.
My best friend is Gao Jun. He is fifteen. He is tall with short hair. We are in the sameclass.
Gao Jun is smart and friendly in class, he listens to the teachers carefully At home, he often helps his mother with housework He does well in all his lessons. And he is always ready to help others. So, everyone in our class likes him
Gao Jun seems to have a special interest in writing. He wants to be a writer in the future.
Both of us like playing basketball .We usually play it after class. We feel happy when we are together.I think we will be good friends forever.
What about your best friend? Can you tell me something about him( her)?
Yours.
Li Min.
Dear Li Min.
Thank you for telling me so much about your best friend Gao Jun.
__________________________________________________________________________
__________________________________________________________________________
__________________________________________________________________________
Yours.
Zhang Hua 查看习题详情和答案>>
（16分）人工合成的生长素类似物，如2.4—D、萘乙酸等，具有与生长素相似的生理效应。它们在生产上的应用很广泛。
(1)2，4—D 是一种最早应用的选择性除草剂，在农业生产上常用它除去单子叶农作物田间的双子叶杂草。单子叶农作物与双子叶杂草对2，4—D浓度的反应如右图曲线所示。
①从图中可以看出2.4—D作用的特点是_______________。
②图中X点（甲、乙的交点）对应的浓度对于双子叶杂草的作用效果是______________，2.4—D作为除草剂的最佳使用浓度是_______________点所对应的浓度。
③近几年，媒体经常报道有些农民使用除草剂导致作物绝产的消息。如是某农民使用的2。4—D不是假冒产品，请你分析导致作物绝产的最可能原因是__________________
(2)2.4—D还能促进插条生根。为了探索2.4—D促进插条生根的最适浓度，某生物兴趣小组先做了一组梯度比较大的预实验，实验的结果如下图所示。
①图中纵坐标的标识是______________；推测最适浓度的大致范围在______________之间。
②做预实验的目的是__________________ 正式实验中要实现实验目的，最少需要设置___________组实验（相对浓度梯度为1）。
查看习题详情和答案>>
(1)2，4—D 是一种最早应用的选择性除草剂，在农业生产上常用它除去单子叶农作物田间的双子叶杂草。单子叶农作物与双子叶杂草对2，4—D浓度的反应如右图曲线所示。
①从图中可以看出2.4—D作用的特点是_______________。
②图中X点（甲、乙的交点）对应的浓度对于双子叶杂草的作用效果是______________，2.4—D作为除草剂的最佳使用浓度是_______________点所对应的浓度。
③近几年，媒体经常报道有些农民使用除草剂导致作物绝产的消息。如是某农民使用的2。4—D不是假冒产品，请你分析导致作物绝产的最可能原因是__________________
(2)2.4—D还能促进插条生根。为了探索2.4—D促进插条生根的最适浓度，某生物兴趣小组先做了一组梯度比较大的预实验，实验的结果如下图所示。
①图中纵坐标的标识是______________；推测最适浓度的大致范围在______________之间。
②做预实验的目的是__________________ 正式实验中要实现实验目的，最少需要设置___________组实验（相对浓度梯度为1）。
查看习题详情和答案>>
人人都有朋友初中三年同学之间结下深厚的友谊。假设你叫张华，你的笔友李敏在下面这封信中介绍了他的学友，请你写一封70 词左右的回信，说说你好友的基本情况和兴趣爱好。
注意：1、回信的开头和结尾已给出.但不计入总词数：
2、信中请勿使用朋友的真实校名和姓名
Dear Zhang Hua.
How are you? In this letter I’d like to say something about my best friend.
My best friend is Gao Jun. He is fifteen. He is tall with short hair. We are in the sameclass.
Gao Jun is smart and friendly in class, he listens to the teachers carefully At home, he often helps his mother with housework He does well in all his lessons. And he is always ready to help others. So, everyone in our class likes him
Gao Jun seems to have a special interest in writing. He wants to be a writer in the future.
Both of us like playing basketball .We usually play it after class. We feel happy when we are together.I think we will be good friends forever.
What about your best friend? Can you tell me something about him( her)?
Yours.
Li Min.
Dear Li Min.
Thank you for telling me so much about your best friend Gao Jun.
__________________________________________________________________________
__________________________________________________________________________
__________________________________________________________________________
Yours.
Zhang Hua 查看习题详情和答案>>
注意：1、回信的开头和结尾已给出.但不计入总词数：
2、信中请勿使用朋友的真实校名和姓名
Dear Zhang Hua.
How are you? In this letter I’d like to say something about my best friend.
My best friend is Gao Jun. He is fifteen. He is tall with short hair. We are in the sameclass.
Gao Jun is smart and friendly in class, he listens to the teachers carefully At home, he often helps his mother with housework He does well in all his lessons. And he is always ready to help others. So, everyone in our class likes him
Gao Jun seems to have a special interest in writing. He wants to be a writer in the future.
Both of us like playing basketball .We usually play it after class. We feel happy when we are together.I think we will be good friends forever.
What about your best friend? Can you tell me something about him( her)?
Yours.
Li Min.
Dear Li Min.
Thank you for telling me so much about your best friend Gao Jun.
__________________________________________________________________________
__________________________________________________________________________
__________________________________________________________________________
Yours.
Zhang Hua 查看习题详情和答案>>