【正文】 moveDEBRIS衛(wèi)星的用途是收集太空中存在的廢物。故選C。 （2）考查推理判斷。根據(jù)第六段中的“...,said that an operational version of the RemoveDEBRlS technology would cast a net that remains fastened to the main satellite so the debris can be dragged out of orbit. It could target large pieces of junk, including dead satellites up to 10 meters long.“該公司表示，一種操作性版本的RemoveDEBRlS技術(shù)將會在主衛(wèi)星上撒網(wǎng)，這樣碎片就可以被拖出軌道。它可以瞄準大塊的垃圾，包括長達10米的報廢衛(wèi)星?！笨芍琑emoveDEBRlS衛(wèi)星是通過撒網(wǎng)把垃圾帶離軌道。故選A。 （3）考查詞義猜測。根據(jù)最后一段中的”Aglietti said he hopes RemoveDEBRIS will conduct a few cleanup tasks per year, targeting the largest pieces of junk in the most crowded orbits.“Aglietti說，他希望清理碎片的工作每年能進行幾次，目標是最擁擠軌道上最大的垃圾碎片?？芍?，“挑戰(zhàn)在于說服有關(guān)當局贊助這些任務(wù)?！笨芍?，劃線詞的意思是“支持”。故選B。 （4）考查主旨大意。根據(jù)第二段中的”The test, which was carried out this week, is widely believed to be the first successful demonstration of space cleanup technology, experts told CNN. And it symbolizes an early step toward solving what has already been a critical issue: junk in space.“專家告訴CNN，本周進行的這次測試被廣泛認為是太空清潔技術(shù)的首次成功演示。它象征著解決太空垃圾這一關(guān)鍵問題的第一步。可知，本文主題是“衛(wèi)星首次收集太空垃圾”。故選D。 【點評】本題考點涉及細節(jié)理解，推理判斷，詞義猜測和主旨大意四個題型的考查，是一篇科技類閱讀，要求考生在捕捉細節(jié)信息的基礎(chǔ)上，進一步根據(jù)上下文的邏輯關(guān)系，進行分析，推理，概括和歸納，從而選出正確答案。7．閱讀理解 Hacking isn39。t just for puters and smart phones. According to a study, scientists have found a way to hack a plant39。s genes in order to make it use sunlight more quickly. Someday, the results could increase the number of food produced around the world. Scientists used tobacco plants in the study because it is easy to change the plants39。 genes. Hacked plants are larger than normal plants. Photosynthesis is the word used to describe how plants use sunlight, water and carbon dioxide to make their own food. Scientists say this is a very slow process. Plants use less than 1 percent of the energy. But by hacking a plant39。s genes, the scientists were able to increase the amount of leaf growth on plants between 14 and 20 percent. Scientists hacked the plant39。s protective system. Normally, this system starts when a plant gets too much sunlight. When the plant senses the light, it creates more leaves. When the plant is in shade, the protective system is turned off. But the process is slow. The new study sped up the process by changing the plant39。s genes, the protective system turned on and off more quickly than normal. As a result, leaf growth on the plants scientists used in the study increased. Leaf growth on two plants increased by 20 percent, while leaf growth on a third plant increased by 14 percent. Scientists conducted the study on tobacco plants. But they think the genetic changes would produce the same results in corn and rice. Agriculture professor Tala Awanda said the study makes sense, but cautioned the yield（產(chǎn)量）might not be quite so high for conventional food crops. Still, she added in an , this study remains a breakthrough,（1）Which of the following is true according to Paragraph 1 ? A.We can find hacking only in digital devices.B.A plant39。s genes can be changed by hacking.C.Hacking has been used in improving food production.D.Hacking can be used to change whatever you want.（2）Why did scientists choose tobacco plants to study? A.Because they are very easy to get.B.Because their genes are easy to change.C.Because they are larger than other plants.D.Because they can absorb sunlight quickly.（3）What do we know about photosynthesis? A.It helps plants to produce energy.B.It is regarded as a productive system for plants.C.It can increase leaf growth on plants by 14 percent.D.It is made up of sunlight, water and carbon dioxide.（4）We can learn from Paragraph 4 that changing the plants39。 genes proved _______. A.uselessB.deadlyC.effectiveD.unrealistic（5）What is Tala Awanda39。s attitude toward the study? A.Doubtful.B.Neutral.C.Objective.D.Critical.【答案】 （1）B（2）B（3）A（4）C（5）C 【解析】【分析】本文是一篇說明文,介紹了科學家通過研究發(fā)現(xiàn)了通過駭入植物基因使其更快地利用陽光的方法,這種方法對提高糧食產(chǎn)量是個重大突破。 （1）考查細節(jié)理解。根據(jù)第一段中的scientists have found a way to hack a plant39。s genes in order to make it use sunlight more quickly.可知,科學家發(fā)現(xiàn)一種通過駭入植物基因使其更快地利用陽光的方法,由此可知,植物的基因可以通過駭入來改變,故選B。 （2）考查細節(jié)理解。根據(jù)第二段中的Scientists used tobacco plants in the study because it is easy to change the plants39。 genes可知,科學家在研究中選擇使用煙草植物是因為它們的基因很容易改變,故選B。 （3）考查細節(jié)理解。根據(jù)第三段中的Photosynthesis is the word used to describe how plants use sunlight, water and carbon dioxide to make their own food.可知,光合作用這個詞用來描述植物如何利用陽光、水和二氧化碳制造自己的食物,由此可知,光合作用能幫助植物產(chǎn)生能量,故選A。 （4）考查細節(jié)理解。根據(jù)第三段中的As a result, leaf growth on the plants scientists used in the study increased.可知,結(jié)果,科學家在研究中使用的植物葉片生長量增加了,由此可知,駭入植物基因的方法證明是有效的,故選C。 （5）考查推理判斷。根據(jù)最后一段中的the study makes sense,but cautioned the yield（產(chǎn)量）might not be quite so high for conventional food crops. Still,she added in an , this study remains a breakthrough,可知,Awanda說這個研究很有意義,但她警告說對傳統(tǒng)農(nóng)作物來說,產(chǎn)量可能不會那么高,最后她還說不管怎樣,這項研究仍是一個突破,由此可知Awanda對這項研究持客觀態(tài)度,故選C。 【點評】本題考點涉及細節(jié)理解和推理判斷兩個題型的考查，是一篇科研類閱讀，考生需要準確捕捉細節(jié)信息，并根據(jù)上下文進行邏輯推理，從而選出正確答案。8．閱讀下列短文，從每題所給的四個選項（A、B、C和D）中，選出最佳選項。 Fairy tales perform many functions. They entertain, encourage imagination and teach problem—solving skills. They can also provide moral lessons, highlighting the dangers of failing to follow the social codes that let human beings coexist in harmony. Such moral lessons may not mean much to a robot, but a team of researchers at Georgia Institute of Technology believes it has found a way to use the fairy tales as moral lessons that AI (artificial intelligence) can take