维也纳森林的故事阅读理解

第一篇：维也纳森林的故事反思

《维也纳森林的故事》教学反思：

面对《维也纳森林的故事》这样一篇具有深层文化内涵的课文，我的教法仍然比较传统，没有深入开掘其蕴含的文化特色和时代精神。同时，由于过分强调知识点的当堂落实，不能有效地指导学生通过朗读使自己沉浸、品读文本。所以针对本堂课的得失，我觉得应从以下几点进行改进：

1、要注重有效阅读。

由于这是一篇注重人文关怀的文质兼美的散文，所以我比较侧重于让学生在学习课文的过程中学会感悟、能够感悟。结果只匆匆读了一遍课文就要求学生用规定句式品读文章的语言美，从而概括维也纳森林的特性。这就造成一种不良的倾向：学生只是匆匆读过一遍课文，句子还未读通，教师就花很多时间让学生说感悟，往往造成课堂上的“死气沉沉”。

如果在课堂教学中进行层次分明的朗读、感悟，应该能起到事半功倍的效果。所以如果以后有机会重上《维也纳森林的故事》我会考虑首先阅读分析文章中的故事，一方面能较好地调动学生的积极性，一方面也能让学生在阅读整理故事情节的过程中对文章先有一个比较清晰的认识过程。

2、要注重感悟的有章可循。

由于文章运用了多种修辞手法和表达方式相结合的手法，将维也纳森林的特点表现得淋漓尽致，所以在引导学生感悟时，我有意识地让学生用一定的规范句式

随机森林的直观理解

导语：对于那些认为随机森林是黑匣子算法的人来说，这篇帖子会提供一个不同的观点。接下来，我将从4个方面去理解随机森林模型。 1.我们的特征有多重要？

在sklearn随机森林中使用model.feature_importance来研究其重要特征是很常见的。重要特征是指与因变量密切相关的特征，并且对因变量的变化影响较大。我们通常将尽可能多的特征提供给随机森林模型，并让算法反馈对预测最有用的特征列表。但仔细选择正确的特征可以使我们的目标预测更加准确。

计算feature_importances的想法很简单，但却很有效。把想法分解成简单的几步：训练随机森林模型（假定有正确的超参数）找到模型的预测分数（称之为基准分数）多次（p次，p为特征个数）计算预测分数，每次打乱某个特征的顺序，可见下图将每次预测分数与基准分数进行比较。如果随机调整特征顺序后预测分数小于基准分数，这意味着我们的模型如果没有这个特征会变得很糟糕。删除那些不会降低基

准分数的特征，并用减少后的特征子集重新训练模型。 图1：计算特征重要性

注：将F4列打乱重新进行预测来判断特征F4的重要性

计算特征重要性的代码：

下面的代码将为所有特

故事类阅读理解模拟训练 A

It was summer and I was with my new colleagues. I’d graduated from college just two months earlier and relocated (搬家) to Chicago to work there. I barely knew Chicago, but luckily, my co-workers were friendly. We became so close that 13 of us spent a weekend together at the lake and rented a boat.

On our last morning, I wanted to get back into the boat after swimming for a bit. But as I approached it, a force pulled me in. Within seconds, the lower half of my body was stuck between the boat’s propellers (螺旋桨)

故事类阅读理解模拟训练 A

It was summer and I was with my new colleagues. I’d graduated from college just two months earlier and relocated (搬家) to Chicago to work there. I barely knew Chicago, but luckily, my co-workers were friendly. We became so close that 13 of us spent a weekend together at the lake and rented a boat.

On our last morning, I wanted to get back into the boat after swimming for a bit. But as I approached it, a force pulled me in. Within seconds, the lower half of my body was stuck between the boat’s propellers (螺旋桨)

胆小的国王

从前，在一个城堡里住着一个国王，他看上去盛气凌人，可实际却是一个非常胆小的人，一点点陌生的声音都可以让他瑟瑟发抖。

一年冬天，天气很冷很冷，屋子外面到处白茫茫的，像盖了一床厚厚的棉被。屋里的壁炉一直烧得很旺。有一只老鼠又饿又冷，它就跑到城堡的厨房里偷食物。

国王听见厨房里有吱吱吱”的声音，非常害怕，但他还是壮着胆子去看，发现是一只老鼠在偷食物。他本来想叫士兵去抓它，可老鼠却理直气壮地对国王说是：我有很强大的魔法，只要我一声令下，你的城堡就会变成一堆废墟。”国王听了，就半信半疑地退出了厨房，从那以后，厨房就变成了老鼠的地盘。

过了一些日子，老鼠开始得寸进尺了，它对国王说：你让我住的厨作文房太小了，我要换到你的房间。”没办法，胆小的国王立马就搬了出去，老鼠成功地占据了国王的房间。失去自己房间的国王垂头丧气地坐在厨房门口，心里想着：老鼠占了厨房后又占领了我的房间，如果下次它要把整个城堡都占领了，外面又是那么的冷，我该怎么办呀？不行，我应该想办法把老鼠给赶出去。

这时，有只百灵鸟飞到了厨房的窗台上，看见国王垂头丧气，就问：怎么了，国王？”国王把事情说了一遍。百灵鸟说：国王啊，你胆子太小了，其实老鼠并没

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阅读理解（一） 魂 马光复

1、听老人讲，人是有魂的，但我不信世界上会有魂儿。可最近我却看到了。 2、我乘坐的火车呼啸着开出了石家庄市。车厢里人挨人，人挤人，满满登登。

3、刚上车的一个小伙子，看到一个座位上放着本又脏又破名叫《龙虎斗》的书，抄起来，扔到茶几上，旁若无人地坐下。

4、邻坐一位干部模样的人说：“对号入座，这儿有人。”

5、那小伙子眼一瞪，鼻子一抽，脸肌肉一抖，怪怕人地望着对面座位上的一位穿红上衣的十来岁的小姑娘问：“是吗？”

6、小姑娘点点头说：“是。那也是一位大哥哥，他好像是去打开水了。” 7、话音刚落，那打开水的精壮的小伙子已经回来了，他凶煞地吼道：“滚起来！”

8、坐着的小伙子连头也不抬，一只手在裤兜里摆弄着，那分明是一把匕首。一会儿，他眼睛往上翻，说：“少犯嘎！老子有票。座空着，就要坐，坐定了！”

9、火车的轰鸣声杂夹着不堪入耳的争吵与谩骂，像冰水样灌入耳中，让人肌寒目凝，连心都凉了。我暗自想，假如人有魂儿的话，那有些人大概只有一个躯壳了。 10、四只手揪巴在一起，一场厮打近在眉睫。 11、没有人劝，也没有人去拉。

12、忽然，那个穿红色上衣的姑娘站起来，眨眨有着双眼皮的又黑又亮的大眼睛，声音像银铃似地说：“别打架啦，

A． Choose the best answer（根据短文内容，选择最恰当的答案):

Andrew Engel was puzzled. He was sitting in class, but had no idea what the other students were talking about. He had done his homework, paid attention to lectures, and taken notes, but nothing was familiar. “Everyone is so much cleverer than I am,” he thought. It was a strange feeling, as he was always a good student in high school.

He felt even more puzzled a few days later. He got lost on his way to his

favourite cinema. What’s worse, he began having trouble finding the right

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A． Choose the best answer（根据短文内容，选择最恰当的答案):

Andrew Engel was puzzled. He was sitting in class, but had no idea what the other students were talking about. He had done his homework, paid attention to lectures, and taken notes, but nothing was familiar. “Everyone is so much cleverer than I am,” he thought. It was a strange feeling, as he was always a good student in high school.

He felt even more puzzled a few days later. He got lost on his way to his

favourite cinema. What’s worse, he began having trouble finding the right