1、Unit 4 Global warming.完形填空I used to love to swim as a boy.My _1_ was just a short walk away from the local pool and I used to _2_ most of my summer days there.I would head out _3_ with just my trunks and a towel.I always got there before it opened and then stayed until _4_ time.It was four hours of
2、_5_ joy.I loved to dive in that cool, clean water.I would swim, splash, play games with my friends, talk, laugh, and only dry off during the _6_.I always _7_ home in the evenings with a smile on my face too.There were some people who came to the _8_ that I never could understand, _9_.They would _10_
3、 every day carrying around and _11_ their huge, heavy bags full of stuff.They would be all _12_ in fancy swimsuits.They would cover themselves in lotion (乳液), _13_ then sit in the shade of umbrellas.They spent most of their time near their _14_， sitting in chairs, and watching other people swim._15_
4、 they did dive in the pool, it was only for a few _16_ before retreating back to their stuff.I often _17_ why they came to the pool at all.Sometimes I think that life at the pool is a lot like life _18_.Some people spend so much time carrying around and worrying about their stuff that they _19_ get
5、to swim at all.Dont _20_ one of them.Life is for living not for sitting with your stuff.1A.school Bhome Ctraining Dswimming答案：B解析：根据本段最后一句I always _7_ home.可知，作者的家离当地游泳池很近。2A.waste Bspare Cremember Dspend答案：D解析：作者在游泳池“度过(spend)”夏日。3A.early Bfrequently Cdeliberately Drarely答案：A解析：根据下句I always got the
6、re before it opened可知作者去得早。early早； frequently频繁地；deliberately故意地；rarely很少地，罕有地。4A.summer Bpast Cclosing Dlocal答案：C解析：与本句opened相对，作者开门前到达游泳池，直到关门时间才离开。5A.pure Bfalse Cadditional Dinnocent答案：A解析：句意：这是四个小时的纯粹的(pure)快乐。pure完全的，纯粹的；false假造的；additional额外的，附加的； innocent无辜的，清白的。6A.breaks Bgames Ctime Dsumme
7、r答案：A解析：只有在休息时间(break)才把身体弄干。7A.drove Bstayed Cmissed Dwalked答案：D解析：根据本段第二、三句“.just a short walk away” “with just my trunks and a towel”可知作者是走路往返游泳池的。8A.life Bpool Cvillage Dhometown答案：B解析：从下文可知，这些人是到游泳池来的。9A.however Btherefore Csomehow Dthus答案：A解析：上段讲到自己在游泳池里玩得很快乐，而本段提到的是有些人却不肯下水，所以是转折关系。10A.slip a
8、way Bshow up Cgive up Dtake off答案：B解析：他们每天都会到场。slip away溜走；show up露面，到场；give up放弃；take off脱掉，起飞。11A.examining Bwatching over Copened Dgot hold of答案：B解析：根据最后一段第二句Some people spend so much time carrying around and worrying about their stuff这些人担心他们所携带的物品，所以本句说他们“.watching over (看守，监视) their huge, heavy
9、 bags full of stuff”。12A.embarrassed Bburied Cdressed up Dfed up答案：C解析：他们会穿着绚丽的游泳服。embarrassed局促不安的，尴尬的；buried埋头于，沉溺于； be dressed up指穿着(特殊服装)；be fed up意为“对感到厌烦”。13A.so Bor Cfor Dbut答案：D解析：转折关系，用but。句意：他们都会穿着绚丽的游泳服，身上涂了乳液，但却坐在伞荫下。14A.bags Bshade Cumbrella Dfriends答案：A解析：第11题讲到他们会看护着所携带的装满东西的大包，所以本句讲到
10、他们坐在包旁边。15A.Once BIf CUnless DAs答案：B解析：句意：如果他们确实下水了，也只是游几分钟就撤回到他们的物品旁边了。16A.miles Bhours Cdays Dminutes答案：D解析：根据语境排除miles(英里)，hours(小时)，days(天)。17A.explained Binquired about Cwondered Dfigured out答案：C解析：我总是纳闷(wonder)为什么他们会来游泳池。explain解释；inquire about询问，打探； wonder纳闷，想弄明白； figure out弄明白，理解，解决。18A.for
11、certain Bin summer Cin particular Din general答案：D解析：有时，我想，游泳池的生活就像通常的生活一样。for certain无疑地，确定地； in summer在夏天；in particular尤其，特别；in general通常，一般而言。19A.never Balways Chardly Doccasionally答案：C解析：句意：有些人花如此多的时间携带并担心他们的财物，以至于他们几乎没有去游泳。never从不；always总是；hardly几乎不； occasionally偶尔，间或。20A.become Benvy Cforget ab
12、out Drely on答案：A解析：不要成为他们中的一员。.概要写作阅读下面短文，根据其内容写一篇60词左右的内容概要。3D printing：the future of food production?3D printing is becoming more and more popular. People and businesses are able to create the things they need very quickly and easily using 3D printers. But can you imagine printing food?Some scient
13、ists are trying to update the dining experience by doing this. They hope that having a 3D printer in the kitchen will become as commonplace as the microwave or blender(搅拌器). Scientists say that it is easy to use：you simply have to select a recipe and put the raw food inks into the printer. You can a
14、lso adjust the instructions to make the food exactly how you want it. This means that it would be very quick and easy to create tasty and nutritious meals.Using 3D printers to create your meals would also be saving the environment. There would be less need for traditional growing, transporting and p
15、ackaging processes as food production would be a lot more efficient.Printing food could also help people who suffer from a swallowing disorder. They could program the printer to print softer versions of their favourite foods so that they would not have trouble swallowing them.However, some people th
16、ink that 3Dprinted food would be a disaster. It could take away many jobs, including those for growing, transporting and packaging food. Imagine a world where there was no need for farming or growing crops and the same tastes and textures could be printed from a raw food ink. Likewise, traditional c
17、afs and restaurants might lose business. Also, there are concerns about the nutritional value of printed food: is it really possible to get the nutrients we need from it?Whats more, cooking and eating together with family and friends has long been a traditional and enjoyable activity. It is hard to
18、imagine a world where the pastime of cooking is dead and meals can be created at the touch of a button.People have different views about whether the future of food production is 3D printing.(要点1 ) Some scientists think printing food is easy and quick and that it can also save the environment and help those who have difficulty swallowing food. (要点2) However, some people believe 3Dprinted food is bad because they think it would lead to too much unemployment and lack of nutrients. (要点3 ) Whats worse, printing food will take away joys from cooking and eating together.(要点4)