2019高考英语专题复习说明文阅读高分技巧课件新人教版.ppt

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1、说明文阅读高分技巧,开 门 见 山,Recordings of angry bees are enough to send big, tough African elephants running away, a new study says.,安 徽,真题再现,Scientists today are making greater effort to study ocean currents (洋流) . Most do it using satellites and other high-tech equipment. However, ocean expert Curtis Ebbesm

2、eyer does it in a special way by studying movements of random floating garbage.,广 东,真题再现,The behavior of a buildings users may be at least as important as its design when it comes to energy use, according to new research from the UK Energy Research Centre (UKERC).,湖 南,真题再现,纲 举 目 张,A world-famous Can

3、adian author, Margaret Atwood, has created the worlds first long-distance signing device (装置), the LongPen.After many tiring book-signing from city to city, Atwood thought there must be a better way to do them.,Definition,Why did Atwood decide to invent the LongPen?,A. To set up her own company. B.

4、To win herself greater popularity. C. To write her books in a new way. D. To make book signings less tiring.,Heres how it works: The author writes a personal message and signature on a computer tablet (手写板) using a special pen. On the receiving end, in another city, a robotic arm fitted with a regul

5、ar pen signs the book. The author and fan can talk with each other via webcams (网络摄像机) and computer screens.,Process analysis,How does the LongPen work?,A. It copies the authors signature and prints it on a book. B. It signs a book while receiving the authors signature. C. The webcam sends the autho

6、rs signature to another city. D. The fan uses it to copy the authors signature himself.,Last summer, two nineteenth-century cottages were rescued from remote farm fields in Montana, to be moved to an Art Deco building in San Francisco. The houses were made of wood. These cottages once housed early s

7、ettlers as they worked the dry Montana soil; now they hold Twitter engineers.,Illustration,The cottages could be an example of the industrys odd love affair with “low technology,” a concept associated with the natural world, and with old-school craftsmanship (手艺) that exists long before the Internet

8、 era.,Illustration,The writer mentions the two nineteenth-century cottages to show that _.,A. Twitter is having a hard time B. old cottages are in need of protection C. early settlers once suffered from a dry climate in Montana D. Internet companies have rediscovered the benefits of low technology,T

9、he idea of being able to walk on water has long interested humans greatly. Sadly, biological facts prevent us ever accomplishing such a thing without artificial aid we simply weigh too much, and all our mass pushes down through our relatively small feet, resulting in a lot of pressure that makes us

10、sink.,Comparison and contrast Cause and effect,However, several types of animals can walk on water. One of the most interesting is the common basilisk Basilicus, a lizard (蜥蜴) native to Central and South America. It can run across water for a distance of several meters, avoiding getting wet by rapid

11、ly hitting the waters surface with its feet. The lizard will take as many as 20 steps per second to keep moving forward. For humans to do this, wed need huge feet that we could bring up to our ears in order to create adequate hitting.,Comparison and contrast Cause and effect,Walking on water hasnt b

12、ecome a reality mainly because humans_.,A. are not interested in it B. have biological limitations C. have not invented proper tools D. are afraid to make an attempt,What do we know about Basilicus from the passage?,A. It is light enough to walk on water. B. Its huge feet enable it to stay above wat

13、er. C. It can run across water at a certain speed. D. Its unique skin keeps it from getting wet in water.,But fortunately there is an alternative : cornflour. By adding enough of this common thickening agent to water (and it does take a lot)，you can create a “non-Newtonian” liquid that doesnt behave

14、 like normal water. Now, if the surface of the water is hit hard enough, particles (粒子) in the water group together for a moment to make the surface hard. Move quickly enough and put enough force into each step, and you really can walk across the surface of an adequately thick Liquid of cornflour.,C

15、omparison and contrast Cause and effect,What is the function of the cornflour according to the passage?,A. To create a thick liquid. B. To turn the water into solid. C. To help the liquid behave normally. D. To enable the water to move rapidly.,画 龙 点 睛,Fun though all this may sound, its still rather

16、 messy and better read about in theory than carried out in practice. If you must do it, then keep the water wings handy in case you start to sink and take a shower afterward!,Comment and attitude,What is the authors attitude toward the idea of humans walking on water?,A. It is risky but beneficial. B. It is interesting and worth trying. C. It is crazy and cannot become a reality. D. It is impractical though theoretically possible.,Have fun!,