题干

在如今我们的出行中,飞机和火车是经常选用的长途交通工具。下图是世界上最早的火车和飞机图片资料,其发明者分别是(   )

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A:瓦特、莱特兄弟

B:瓦特、卡尔·本茨

C:哈格里夫斯、卡尔·本茨

D:史蒂芬孙、莱特兄弟

上一题 下一题 0.0难度 选择题 更新时间:2010-04-01 08:55:16

答案(点此获取答案解析)

D

同类题2

阅读理解

    I was wandering around the Albuquerque International Sunport Airport. My flight had been delayed and I heard an announcement: “If anyone near Gate A – 4 understands Arabic(阿拉伯语),please come to the gate immediately. ” Gate A – 4 was my own gate. I went there.

    An older woman was crumpled (蜷缩成一团的) on the floor, she reminded me of my grandmother.

    “Talk to her,” urged the flight agent. “We told her the flight was going to be late, and she did this.”

    I bent over to put my arm around the woman and spoke uncertainly. “Shu-dow-a, shu-bid-uck, habibti? She stopped crying. She thought the flight had been canceled. She needed to be in El Paso for a medical treatment the next day. I said, “You'll get there, just late. Who is picking you up? Let's call him.”

    We called her son. In English, I told him that I would stay with his mother until we got on the plane. She talked with him. Then we called her other sons just for fun. Then we called my dad, and they spoke for a while in Arabic and found out that they had several shared friends. After that, I called some Palestinian poets I know and let them chat with her.

    She was laughing a lot by then, patting my knee and answering questions. She pulled a bag of home-made cookies filled with nuts and topped with sugar from her bag and offered them to the women at the gate. To my amazement, no one refused. It was like a sacrament (圣餐). The traveler from Argentina, the mom from California, the lovely woman from Laredo —we were all smiling, covered with the same sugar.

    I looked around that gate and thought: This is the world I want to live in, one with no anxiety. This can still happen anywhere, I thought. Not everything is lost.

同类题5

阅读管丽红的《微课与慕课》文章片断,完成1-4题。

①微课的概念,在国内,最早是由佛山市教育局的胡铁生在2 011年提出的,他认为:“‘微课’是按照新课程标准及教学实践要求,以教学视频为主要载体,反映教师在课堂教学过程中针对某个知识点或教学环节而开展教与学活动的各种教学资源有机组合。”这个阶段对微课的研究更多的是关注资源建设,而忽略了其应用性、互动性和扩展性等特征。

②但随着国内微课发展和建设昀逐步推进,胡老师又在201 2年对这一定义做了更进一步的解释:“微课”是指以视频为主要载体,记录教师在课堂内外教育教学过程中围绕某个知识点或教学环节而开展的精彩教与学活动全过程。突出了微课不仅是一种新型的教学资源,更是基于某个知识点/环节的一个简短而完整的“教学过程”或“教学活动”。这个定义无疑要准确很多,微课资源不再是静态的,而是生长发展的,不断完善的。

③从国外的经验来看,起初微课是应在线学习而产生的。2004年夏天,美国的萨尔曼·可汗开始用雅虎的一款绘图软件作为共享记事本,再加上电话辅导异地的表妹学习数学。后来在YouTube①上录像,继而在2 007年辞职创立可汗学院,并最终把其发展成为一家通过在线图书馆收藏了35 00多部各类学科教学视频的教育性非营利组织。这位的美国人用一共不超过300美元的视频设备通过录制1 0分钟左右的教学视频上传到网上供世界各地的人们免费使用。与此同时,英国教师电视网也开始了微课视频资源的建设。从2 004年的7年间开发了3500个2 0分钟(主要授课过程大约1 0分钟)左右的精品微课视频,受到来自全世界范围的众多教师、家长和学生的喜欢。

④可以说早期的英美微课主要是以上传视频供需要的人在线观看使用为主,类似于网络视频公开课,或者说就是一种“短而精”的视频公开课。而真正把微课和课堂教学结合起来的是被戏称为“一分钟教授”的美国圣胡安学院的高级教学设计师戴维·彭罗斯教授。目前该学院已经推广应用了“微课”这一教学形式。他们主要以在线学习或移动学习为目的,录制一系列1-3分钟的教学视频,突出关键的概念、主题和活动,引导学生利用网络,根据所提供的资源和活动,建构自己需要的知识。(选自《科学大观园》,有删改)

【注】①YouTube是世界上最大的视频网站。