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雅思閱讀速度慢的6大成因及應對策略

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相較于其他英語考試而言,雅思閱讀文章的難度并不是最高的,但因為閱讀量非常大時間是最為緊張的,下面小編給大家?guī)砹搜潘奸喿x速度慢的6大成因及應對策略,希望能夠幫助到大家,下面小編就和大家分享,來欣賞一下吧

雅思閱讀速度慢的6大成因及應對策略

1.沒有良好的閱讀習慣

隨著網(wǎng)絡的發(fā)展,信息進入爆炸發(fā)展的時代,人們對信息的攝入顯得越來越浮躁,現(xiàn)在的人們對于閱讀材料一旦字數(shù)超過140 就很難堅持讀下去(這也是微博字數(shù)限制140的原因),相信很多同學讀到這個位置的時候已經(jīng)忍不住想關掉退出了,心想“mark一下回頭再看吧!”

但是雅思閱讀文章都是700-1000字不等的文章,在閱讀中容易出現(xiàn)走神的現(xiàn)象耽誤時間。

解決方案:每天堅持泛讀一篇完整的,1000字左右的英文材料,BBC news就是個不錯的選擇。

2.英語語言基礎薄弱

詞匯&語法基礎薄弱,閱讀過程中生詞太多,或是長難句難以抓住句子主干,不能了解中心思想,導致反復閱讀及猜想,耽誤了時間。

解決方案:通過精讀雅思閱讀文章的方式積累單詞,辨析長難句鞏固語法。為自己定下目標,每天至少通過精讀的方式記住比如50個生詞(根據(jù)自身情況而定),至少一個以前不會的語法點。

3.短時記憶力差

看完題之后回到原文中掃讀文章找出題點,結果找的過程中忘了題目說的是什么而讀漏了,再翻過去看題,來回翻來回找,浪費了時間。

解決方案:循序漸進鍛煉短時記憶力,從1道題開始,讀完閉上眼,腦中重復2次該題內容?;氐皆闹忻孔x完一小段馬上再重復回憶題目內容。能夠無障礙記憶一道題之后,同時記憶兩道題再掃讀原文。以此類推。

生活中也可以時刻鍛煉短時記憶能力,比如說朋友的電話號碼,走在街上看到瞬間開過的車牌照,等等等都可以加強你的短時記憶能力,這個是可以靠短期的訓練來提高的。

4.患有注意力缺失癥

患有注意力缺失癥的話,會很難堅持一句一句的掃讀原文,大腦會帶著眼睛在文章里亂掃,浪費了時間卻完全沒走心。

解決方案:可以自行百度“舒爾特表”來進行練習集中注意力。畫一個5X5的表格,1寫到正中間,其他2-25亂序隨機寫到其他空格,練習時眼睛盯著中間的1,用旁光去按順序搜索2-25。

5.對雅思閱讀考試不了解

沒有參加過雅思培訓,不了解考官出題模式,不了解雅思閱讀文章寫作規(guī)律,還在用原始的“先看文章再看題作答”的模式,或是在用精讀原文每一句話的強迫癥閱讀方式,導致時間不夠。沒有在考場上正確的合理的分配閱讀和解題的時間

解決方案:反復計時刷題、來聽孟老師的雅思閱讀課程。

6.瞎

這個老師幫不到你,千萬不要放棄治療。

以上這些提升雅思閱讀解題速度的方法適用于還有一定準備時間的同學,閱讀速度不是一朝一夕就能有效提升的,要靠慢慢的積累,綜合能力的加強。

如果馬上就要考試的同學,短時間內能做的就是練習合理的安排答題時間,記住一點:咱的目標不是讀完三篇文章,而是做完40道題,其實也不是做完40道題,而是把30道題做對拿7分以上。讀完三篇文章和做對30道題是截然不同的概念。所以短期備考的同學要學會取舍。如果你的目標是7分,你可以錯10道題呢,一篇文章才13道題,相當于可以放棄將近一整片文章。所以考試不怕錯,只要你能快點錯,抓緊時間錯就好,把寶貴的時間留給真正能做出的題才是王道。

雅思閱讀機經(jīng)真題解析--Sunny Days For Silicon

Sunny Days For Silicon

You should spend about 20 minutes on Question 14-26 which are based on Reading Passage below.

AThe old saw that "the devil is in the details" characterizes the kind of needling obstacles that prevent an innovative concept from becoming a working technology. It also often describes the type of problems that must be overcome to shave cost from the resulting product so that people will buy it. Emanuel Sachs of the Massachusetts Institute of Technology has struggled with many such little devils m his career-tong endeavor to develop low-cost, high-efficiency solar cells. In his latest effort, Sachs has found incremental ways to boost the amount of electricity that common photovoltaics (PVs) generate from sunlight without increasing the costs. Specifically, he has raised the conversion efficiency of test cells made from multi-crystalline silicon from the typical 15.5 percent to nearly 20 percent—on par with pricier single-crystal silicon cells. Such improvements could bring the cost of PV power down from the current $1.90 to $2.10 per watt to $1.65 per watt. With additional tweaks, Sachs anticipates creating within Four years solar cells that can produce juice at a dollar per watt, a feat that would make electricity (rum the sun competitive with that from coal-burning power plants.

BMost PV cells, such as those on home rooftops, rely on silicon to convert sunlight into electric current. Metal interconnects then funnel the electricity out from the silicon to power devices or to feed an electrical grid. Since solar cells became practical and affordable three decades ago, engineers have mostly favored using single-crystal silicon as the active material, says Michael Rogol, managing director of Germany- based Photon Consulting. Wafers of the substance are typically sawed from an ingot consisting of one large crystal that has been pulled like taffy out of a vat of molten silicon. Especially at first, the high-purity ingots were left over from integrated-circuit manufacture, but later the process was used to make PV cells themselves, Rogol recounts. Although single-crystal cells offer high conversion efficiencies, they are expensive to make. The alternatives- multi-crystalline silicon cells, which factories fabricate from lower-purity, cast ingots composed or many smaller crystals—arc cheaper to make, but unfortunately they arc Jess efficient than single-crystal cells.

CSachs, who has pioneered several novel ways to make silicon solar cells less costly and more effective, recently turned his focus to the details of multi-crystalline silicon cell manufacture. The first small improvement concerns the little silver fingers that gather electric current from the surface of the bulk silicon," he explains. In conventional fabrication processes, cell manufacturers use screen-printing techniques ("like high-accuracy silk-screening of T-shirts," Sachs notes) and inks containing, silver particles to create these bus wires. The trouble is that standard silver wires come out wide and short, about 120 by 10 microns, and include many nonconductive voids. As a result, they block considerable sunlight and do not carry as much current as they should.

DAt his start-up company—Lexington, Mass- based 1366 Technologies (the number refers to the flux of sunlight that strikes the earth's outer atmosphere: 1.366 watts per square meter)—Sachs is employing "a proprietary wet process that can produce thinner and taller" wires that are 20 by 20 microns. The slimmer bus wires use less costly silver und can be placed closer together so they can draw more current from the neighboring active material, through which free electrons can travel only so far. At the same time, the wires block less incoming light than their standard counterparts.

EThe second innovation alters the wide, flat interconnect wires that collect current from the silver bus wires and electrically link adjacent cells. Interconnect wires at the top can shade as much as 5 percent of the area of a cell. "We place textured mirror surfaces on the faces of these rolled wires. These little mirrors reflect incoming light at a lower angle--around 30 degrees-—so that when the reflected rays hit the glass layer at Lire top, they stay within the silicon wafer by way of total internal reflection,” Sachs explains. (Divers and snorkelers commonly see this optical effect when they view water surfaces from below.) The longer that light remains inside, the more chance it has to be absorbed and transformed into electricity.

FSachs expects that new antireflection coatings will further raise multi-crystal line cell efficiencies. One of his firm's future goals will be a switch from expensive silver bus wires to cheaper copper ones. And he has a few ideas regarding how to successfully make the substitution. "Unlike silver, copper poisons the performance of silicon PVs," Sachs says, "so it will be crucial to include a low-cost diffusion barrier that stops direct contact between copper and the silicon." In this business, it's always the little devilish details that count.

GThe cost of silicon solar cells is likely to fall as bulk silicon prices drop, according to the U.S. Energy information Administration and the industry tracking firm Solarbuzz. A steep rise in solar panel sales in recent years had led to a global shortage of silicon because production capacity for the active material lagged behind, but now new silicon manufacturing plants are coming online. The reduced materials costs and resulting lower system prices will greatly boost demand for solar-electric technology, according to market watcher Michael Rogol of Photon Consulting.

Questions 14- 18

Use the information in the passage to match the people or companies (listed A-C) with opinions or deeds below. Write the appropriate letters A-C in boxes 14-18 on your answer sheet.

NB you may use any letter more than once

A. Emanuel Sach

B. Michael Rogol

C. Solarbuzz

14. Gives a brief account of the history of the common practice to manufacture silicon batteries for a long time.

15. Made a joint prediction with another national agency.

16. Established an enterprise with a meaningful name.

17. Led forward in the solar-electric field by reducing the cost while raising the efficiency.

18. Expects to lower the cost of solar cells to a level that they could contend with the traditional way to generate electricity.

Questions 19-22

Do the following statements agree with the information given in Reading Passage 2?

In boxes 19-22 on your answer sheet, write

TRUE if the statement is true

FALSE if the statement is false

NOT GIVEN if the information is not given in the passage

19. The Achille’s heel of single-crystal cells is the high cost.

20. The multi-crystalline silicon cells are ideal substitutions for single-crystal cells.

21. Emanuel Sachs has some determining dues about the way to block the immediate contact between an alternative metal for silver and the silicon.

22. In the last few years, there is a sharp increase in the demand for solar panels.

Questions 23-27

Summary

Complete the following summary of the paragraphs of Reading Passage, using No More than Three words from the Reading Passage for each answer. Write your answers in boxes 23-27 on your answer sheet.

Emanuel Sachs made two major changes to the particulars of the manufacture 23. One is to take a 24 in the production of finer wires which means more current could be attracted from the 25 . The other one is to set 26 above the interconnect silver bus wires to keep the incoming sunlight by 27 .


參考譯文:

太陽能硅電池

A

古語“細節(jié)決定成敗”形象地刻畫出了了那種針尖大小的障礙足以阻止一個創(chuàng)新的概念轉化成一項實用的技術。它往往也描述出了這樣一類問題:通過降低產(chǎn)品的成本來吸引消費者來購買。麻省理工學院的Emanuel Sachs在他的職業(yè)生涯中一直在努力通過許多這樣的小細節(jié)開發(fā)低成本且高效率的太陽能電池。在他最新的研究中,Emanuel Sachs己經(jīng)發(fā)現(xiàn)許多在不增加成本的前提下提高普通光伏(PV)從太陽光中產(chǎn)生的電量。具體來說,他將由多結晶硅制成的測試電池的轉換效率從典型的15.5%提高至近20%——達到了比其價格更高的單晶硅電池的轉換效率。這種改進可能將光伏發(fā)電的成本由現(xiàn)在的$1.90到$2.10每瓦下跌到$1.65每瓦。隨著更多的調整,Sachs預計在四年內發(fā)明出太陽能電池,他可以講成本降到$1每瓦,這將使轉化自太陽能的電力由燃煤電廠生產(chǎn)的電力形成競爭關系。

B

大多數(shù)光伏電池,比如那些在家里的屋頂,是依靠硅材料將太陽光轉換成電流。金屬互相連接將電流從硅中導出來向電網(wǎng)輸電。德國Photon Consulting公司常務董事Michael Rogol,認為自太陽能電池在30年前被普遍推廣使用起,工程師們大多是釆用單晶硅作為活性物質的。該物質的晶片通常是從由一大塊晶體組成的錠上鋸下來的,而該晶體是從一大桶熔化了的硅中像太妃糖似得被拔出來的。Rogol補充說,特別是在剛開始的時候,髙純度硅錠被廢棄在集成電路制造廠,但之后就被用來制造太陽能電池。雖然單晶電池能提供商的轉換效率,但它們的生產(chǎn)成本很高。其替代品——多晶硅電池,是工廠用低純度的由許多小的晶體組成的鑄造錠中制造的,生產(chǎn)成本低廉,但不幸的是他們比單晶電池的轉換效率要低。

C

Sachs率先推出了一些新的方法使得太陽能硅電池更便宜更有效,最近他又將重點放在多晶硅電池制造的細節(jié)上。他解釋說,第一個需要小幅改進的問題是關于“收集電流從硅表面上匯集電流的小的銀制線路”。在傳統(tǒng)的制造工藝中,電池制造商使用絲網(wǎng)印刷技術(“就像像高精度絲網(wǎng)印刷T恤一樣,”Sachs注)和含有銀粒子的油墨來創(chuàng)建線路。麻煩的是,標準的銀制電線一般寬而且短,大約120微米長10微米寬,并包含許多不導電的空隙,因此阻擋了大量的陽光的吸收從而減少了本該傳輸?shù)碾娏餍恰?/p>

D

在他創(chuàng)辦的第一家位于馬薩諸塞州Lexington的Technologies公司(該數(shù)字意指太陽光撞擊地球外層大氣的流量是:每平方米1366瓦特)——Sachs采用一項專有技術來制造更薄更高的電線:20.0微米。這種更細的電線使用成本較低的銀,并且可以放置得更近,使它們能夠從鄰近的活性物質吸引更多的電流,在這些活性物質中,自由電子只可以在有限的范圍內移動。與此同時,該電線比其它對應電線阻擋較少的入射光。

E

他的第二項創(chuàng)新改變了用來收集從銀制電線以及電氣連接的相鄰的電池中的電流的扁平較寬的互相交錯的電線。位于頂部的互相交錯的電線可遮擋一個電池多達5%的區(qū)域。Sachs解釋道,“我們在這些軋線的表面放上質感的鏡面。這些小反射鏡在一個較低的角度——大約30度左右反射入射光。因此,當反射光線擊中頂部的玻璃層時,它們將會通過全內反射的方式留在硅晶片內。”(當潛水和浮潛的人從水下面看水的表而時,通常會看到這種光學效應。)該光線在硅晶片中停留的時間越長,它越有機會被吸收且被轉化成電能。

F

Sachs預計新的抗反射涂層將進一步提高多晶電池的效率。他公司的未來目標之一是用較便宜的銅制電線替代目前使用的價格昂貴的銀制電線。他對于如何成功地完成這項轉換已經(jīng)有了一些想法。Sachs說“銅不像銀,它會削弱硅光伏電池的性能,所以使用阻斷銅與硅之間的直接接觸的材料將是至關重要的?!痹谶@個行業(yè),往往是細節(jié)決定成敗。”

G

美國能源信息署和行業(yè)跟蹤公司Solarbuzz認為,太陽能硅電池的成本很可能會隨著硅價格的下降而走低。最近幾年太陽能電池板銷售的陡然上升己經(jīng)導致硅的全球性短缺,因為活性物質的產(chǎn)能落后,但是現(xiàn)在新的硅制造工廠即將上線。Photon Consulting公司的市場觀察員Michael Rogol認為,降低的材料成本以及隨之降低的價格大大提高提振太陽能光電技術的需求。

參考答案:

Version21109主題太陽能硅電池

14

B

15

C

16

A

17

A

18

A

19

TRUE

20

FALSE

21

NOT GIVEN

22

TRUE

23

multi-crystalline silicon cell

24

proprietary wet process

25

neighboring active material

26

textured mirror surfaces

27

Total internal reflection



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