1、1.2 Discovering Useful StructuresUNIT 1 重点练I. 阅读选择Not only does the use of plastic water bottles hurt your wallet , it also increases pollution and wastes energy and water .Only 23% of all plastic in America ends up in a recycling bin,meaning over $1 billion worth of plastic is treated as rubbish a
2、year. Recently, Skipping Rocks Lab has invented a kind of water bottle called Ooho.It is a convenient, clear water bottle that can either be drunk or eaten. To drink it, you can either peel off the membrane(薄膜）or tear a hole in the membrane with your teeth to pour the water into your mouth. To eat i
3、t, you simply put the whole bottle in your mouth. One problem the scientists have run into is how to ship lots of Ooho bubbles without arriving with a very wet truck. However, they have attempted to package units of individual bubbles together inside a larger and thicker membrane. It is targeting la
4、rge outdoor events such as marathons, music festivals, and sporting events, where tons of plastic bottles are used, and frequently left behind as litter. And too much plastic is sure to do harm to the environment, which could account for their purpose of such a new invention.The team has been workin
5、g for the past two years to develop the technology and materials needed to produce Ooho; they have recently applied for a patent for their new advancement. The price for an individual bubble or a unit of bubbles has not been set yet, but they cost about two cents to create a unit, which is cheaper t
6、han plastic bottles. It has appeared at events in London, San Francisco, Boston, at conferences, festivals, and so on.Ooho is catching many peoples attention and has raise over $1 million and gained 1,000 investors in only three days. It is mostly being sold at events at the moment to keep th consum
7、ers interest when the production machine is running . It quickly making a rise, so keep an eye out this year for thes bottles of the future.1.How is most plastic dealt with in America?A. Its sold. B. Its recycled.C. Its buried. D. Its wasted.2. Why did the team invent Ooho?A. To make a profit for a
8、company.B. To protect the environment.C. To make people eat as they drink.D. To reduce the cost of the plastic bottle.3.What can we infer about Ooho from the text?A . It is easy and safe to ship it in large amounts .B. It has become popular since it began to be sold.C. It might be sold at a lower pr
9、ice than plastic bottles.D. It cost the team a lot of money to develop the technology.4.What does the author really want to say in the last paragraph?A. Ooho is to be a success in the future.B. Ooho is being supported by smart people.C. Ooho is taking the place of plastic bottles now.D. Ooho is bein
10、g produced to attract more investors.II.完形填空There is a tree full of ripe plums(李子）with branches hanging over our house . Every single morning when I see plums on the ground , I am 5_ . Wow , plums ! I say to myself and look up at the 6_ , and sure enough there are plums there .I imagine the tree say
11、ing, If I put the plum here,7_ where you walk,maybe you will see it. I step over the plum on the way out and see it on my way back, thinking how often I 8 _ it and step over it. Every time I 9_ and see a plum, I feel as though someone has given me a 10_ .For me?I said to the plum tree one morning as
12、 I 11_ some plums. You could have.Maybe were supposed to offer our gifts to the world with generosity(慷慨）and love.It seems that I have a hard time 12_ that fruit falls freely from the sky. Is the tree13_ with me on purpose? Is there part of me that doesnt feel worthy of receiving 14_ plums from the
13、sky? Is life 15_ to have moments that are so sweet and easy?Sometimes it feels as though the tree were 16_to me and she were saying, For you. For you. For you. When I listen to her, I feel the 17_ of her offering, and this is when my heart breaks. Despite the18_ of a day, there can be tender, touchi
14、ng moments in nature that feel to me like theres a force out there that 19_ me refreshed(振奋的）.5.A.upsetB.surprisedC.anxiousD.calm6.A.treeB.tableC.grassD.ground7.A.exactlyB.hardlyC.graduallyD.certainly8 . A . wearB.enjoyC.missD.trust9.A.judgeB.decideC.stopD.lose10.A.troubleB.trickC.factD.gift11.A.for
15、cedB.refusedC.boughtD.gathered12.A.findingB.acceptingC.callingD.cooking13.A.pointingB.agreeingC.discussingD.sharing14.A.badB.smellyC.dirtyD.free15.A.frightenedB.allowedC.lockedD.shown16.A.arguingB.walkingC.referringD.talking17.A.generosityB.peaceC.temperD.knowled18 . A . attentionB.choiceC.pleasureD
16、.difficulty19 . A . keepsB.hopesC.needsD.causesIII.语法填空I climbed Kilimanjaro with Lava Expeditions(探险队）during the rainy season.I 20_ (fly) to Nairobi in Kenya and spent several days there. At my hotel in Nairobi I met the rest of the group with whom I would spend the next week. We all travelled on t
17、he bus together for 21_ 8-hour journey into Tanzania and then Arusha,a quiet town.After we arrived at our hotel in Arusha, we had dinner and a few drinks. Then we 22_ (introduce) to more members including Taddeus Minja, the main guide, 23_ was very experienced-climbing Kilimanjaro runs through the g
18、enerations of his family.The next day the Lava Expeditions members checked if we had the correct and enough clothing for our expedition on Kilimanjaro . Only one person needed to bring 24 _( many ) clothes .After that we set off , 25 _( walk ) in the rain through the beauty of the rainforest , all t
19、he way to the first camp. I was happy the next few days as the view was so 26_ (wonder) and changed every day. I suffered a little during the trip and I felt so tired. But the members of Lava Expeditions provided me with lots of encouragement which was one of the best 27_ ( memory ) . Finally we rea
20、ched the top of Kilimanjaro in bright blue skies .I felt excited about climbing Kilimanjaro and the feeling didnt change during my trip. The fellow members o Lava Expeditions looked 28_ me so well that I was 29_ ( deep ) thankful for their help .、【答案】1. D 2. B 3. C 4. A【分析】语篇导读本文是一篇说明文。由于塑料瓶的使用不但浪费金
21、钱，还造成环境污染，Skipping Rocks Lab发明了一种可以食用的包装材料Ooho。本文介绍了Ooho的食用方法，运输方法以及制作成本，并展望了其市场前景。1 .细节理解题。根据第一段第二句可知，在美国只有23%的塑料最后回到回收站，这意味着价值超过10亿美元的塑料被视为垃圾。据此可知，在美国，大部分塑料被当成垃圾处理了，故D项正确。2 .细节理解题。根据第二段尾句可知，由于塑料瓶的使用污染了环境，故Skipping Rocks Lab发明了一种可以食用的包装材料Ooho,故B项正确。3 .推理判断题。根据第三段第二句可知，该产品的制造成本比塑料瓶低；据此可推测，该产品的售价也可能比
22、塑料瓶低，故C项正确。4.推理判断题。根据尾段第一句可知，Ooho吸引了很多人的注意，在三天时间内就得到了1000位投资者的关注，筹集到100多万美元；再结合尾段最后一句可推知，作者最后想要表达在未来Ooho一定能获得成功，故A项正确。、【答案】5. B 6. A 7. A 8. C 9. C 10. D 11. D 12. B 13. D 14. D 15. B 16. D 17. A 18. D 19. A 【分析】文章叙述了作者因自家房前的一棵李子树所产生的一些关于人生的思考。5. 根据后面作者对李子发出的惊叹“Wow,plums!”可知，作者感到惊奇，故选B项。6. 根据前面的look
23、 up可知作者是抬头看，并且根据下文中的there are plums there可知，作者看到地上的李子，感叹一句，然后抬头看看李子树。故选A项。7.根据后面的maybe you will see it可知，李子就“恰好”在作者路过的地方。故选A项。8.根据step over it可知，作者有很多次都“未注意到”李子。故选C项。9.根据see a plum可知，此处是指作者停下来看李子。故选C项。10.根据下一段中的Maybe were supposed to offer our gifts to.可知，作者看到李子就感觉仿佛有人给了他“礼物”一样，所以要用gift。故选D项。11. 根据“
24、For me?”及“You could have.”可知，此处是指作者“采集”了一些李子。gather意为“采集（植物、水果等）”。故选D项。12.根据后文中的Is there part of me that doesnt feel worthy of receiving可知，作者觉得自己很难“接受”免费的李子。故选B项。13. 作者从树下得到李子，因此怀疑是不是李子树出于什么目的与他“分享”果实。故选D项。14. 作者得到李子树的馈赠，因此作者说自己得到的是“免费的”李子。故选D项。由本段第一句也可知答案。15. 根据上句的内容可知，此处作者在反思生活会被“允许”有如此甜蜜的时刻吗，所以要用
25、allowed。故选B项。16. 根据后面的she were saying可知，作者感觉李子树似乎在跟他“说话”，故选D项。17.根据李子树对作者说的“For you.For you.For you.可知，作者感受到了李子树的“慷慨”，故选A项。18.根据上文作者感受到了李子树的慷慨可知，作者感到尽管生活中有“困难”，但也有温柔感人的时刻。故选D项。19.作者感觉自然给他带来的感动就像一种强大的力量让他振奋。此处为“keep+宾语+adj.”结构，keep意为“使保持，使处于”。故选A项。、【答案】20.flew 21.an 22.were introduced 23.who 24.more
26、25.walking 26.wonderful 27.memories 28.after 29.deeply 【分析】作者在文章中介绍了自己和拉瓦探险队一起攀登乞力马扎罗山的情况。20.本文讲述过去发生的事情，此处与后面的spent并列，故填过去式flew。21.8-hour journey 前面需加不定冠词，表示“一段8小时的旅程”。数字8的英文eight发音以元音音素开头，故填an。22.此处表示“我们”被介绍给更多的成员，应用一般过去时的被动语态，故填were introduced。23.was very experienced修饰前面的the main guide,为非限制性定语从句，
27、先行词指人，关系词在从句中作主语，故填who。24.前文讲到大家检查是否带了合适的、足够的衣服，此处指只有一人需要多带些衣服，故填more25.After that we set off为结构完整的句子，后面没有连词，由此判断设空处应填非谓语动词作状语。walk与其逻辑主语we之间为主动关系，故填walking。26.设空处在从句中作表语，应用形容词 wonderful。27. one of+可数名词复数”为固定用法，意为“之一”。28. 此处表示其他成员把“我”照顾得很好，look after为固定搭配，意为“照顾”。29. 修饰形容词 thankful应用副词。deeply意为“非常；真诚地”