18.Pupils remember more and behave better when 3D images are used in lessons,research suggests.They are quicker to learn and absorb new concepts,and display higher levels of concentration.
Professor Anne Bamford,of the University of the Arts,London,studied the effectiveness of 3D content in 15schools across seven countries,including the UK.Pupils in 3D classes can remember more than those in the 2D classes after four weeks,improving test scores by an average of 1 7percent compared with eight percent for 2D lessons.They gave more detailed answer to the tasks and were more likely to think in 3D,using hand gestures and mime(模仿動(dòng)作) to answer the test questions successfully.
The teachers commented that the pupils in the 3D groups had deeper understanding,increased attention span,more motivation and higher engagement in the lessons.
Children are used to 3D with the rise of computer games that use the technology-90percent of those in the study had seen a 3D film.Schools would need 3D-enabled projectors(投影儀),laptops with good picture capabilities,3D software and glasses for children to introduce animations(動(dòng)作) into classrooms.
But Danny Nicholson,an educationist,said the technology would be impractical to use in
schools and could be costly.He said,"While I think the idea of 3D technology is very interesting,
I worry that 3D is a bit of an expensive gimmick(小玩意兒).There are a few cases where a true 3D image might help,but most of the time,good 2D models that can be moved would be just as effective."
In the US,one school district in Colorado is already in the process of having 1.000 3D projectors fixed in classrooms.And the University of Caledonia,which carries out scientific research into the Lake Tabon Basin  has used 3D presentations with Grade Six pupils.Those who watched the 3D presentations were more engrossed and reported a general increase in their interest in science compared with students who watched the 2D version.
25.What is the main idea of the first three paragraphs?B
A.There are slight differences between 3D and 2D images.
B.Pupils perform better when 3D images are used in classes.
C.Schools have difficulties in making full use of 3D technology.
D.3D technology is always more effective than 2D technology.
26.Danny Nicholson holds the view that 3DD.
A.is of no help in classes  
B.has a bright future in classes
C.is more practical than 2D models  
D.may not be affordable for schools
27.What can we learn from the last paragraph?D
A.3D technology will replace 2D models in the future.
B.Many pupils are now more Interested In science than before.
C.Teachers will use the 3D technology through specific training.
D.3D will soon be put into use in one school district in Colorado.
28.The underlined word"engrossed"in the last paragraph meansA.
A.a(chǎn)bsorbed     B.a(chǎn)nnoyed   C.relaxed      D. confused.

分析 本文講述了3D影響在教學(xué)中的應(yīng)用,雖然有人提出反對意見,但研究表明了3D用于教學(xué)的有效性,提高了教學(xué)效果:提高了學(xué)生的記憶效果、理解能力和接受能力,而且在美國的科羅拉多州的一個(gè)學(xué)校已經(jīng)投入使用.

解答 25.B 細(xì)節(jié)理解題. 據(jù)第一段:當(dāng)3D影像在課上使用時(shí)小學(xué)生們能夠記得更多,表現(xiàn)更好,他們學(xué)的更快,接收新知識(shí)更快,更能集中精力.所以B正確.
26.D 細(xì)節(jié)理解題.根據(jù)第四段前兩句But Danny Nicholson,an educationist,said the technology would be impractical to use in schools and could be too expensive.He said,"While I think the idea of 3D technology is very interesting,I worry that 3D is a bit of an expensive gimmick (小玩意兒)得出D正確.
27.D 細(xì)節(jié)判斷題.根據(jù)最后一段第一句話In Colorado,the US,one school district is already in the process of having 1,000 3D projectors fixed in classrooms.得出D正確.
28.A詞意猜測題.通過最后一段最后一句話"Those who watched the 3D presentations were more engrossed and reported a general increase in their interest in science compared with students who watched the 2D version."大家各抒己見觀看3 d演示更全神貫注,增加了一般與學(xué)生相比,他們對科學(xué)的興趣觀看了2 d版.結(jié)合選項(xiàng),可知.故選A.

點(diǎn)評 本文是一個(gè)新聞報(bào)類閱讀理解,題目涉及多道細(xì)節(jié)理解題,做題時(shí)結(jié)合原文和題目有針對性的找出相關(guān)語句進(jìn)行仔細(xì)分析,結(jié)合選項(xiàng)選出正確答案.推理判斷題也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確答案,切忌胡亂猜測,一定要做到有理有據(jù).

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