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1、精选优质文档-倾情为你奉上2019年6月大学英语四级真题及答案完整版（卷三）Part I Writing【题干】Directions: For this part, you are allowed 30 minutes to write a news report to your school newspaper on a volunteer activity organized by your Student Union to help elderly people in the neighborhood. You should write at least 120 words but no
2、 more than 180 words.Part Reading Section ASection ADirections: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Ea
3、ch choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.Just because they cant sing opera or ride a bicycle doesnt mean that animals dont h
4、ave culture. Theres no better example of this than killer whales. As one of the most_(27)predators(食肉动物)，killer whales may not fit the_(28) of a cultured creature. However, these beasts of the sea do display a vast range of highly_(29)behaviors that appear to be driving their genetic development.The
5、 word culture comes from the Latin colere, which_(30)means to cultivate .In other words, it refers to anything that is_(31)or learnt, rather than instinctive or natural. Among human populations, culture not only affects the way we live, but also writes itself into our genes, affecting who we are. Fo
6、r instance, having spent many generations hunting the fat marine mammals of the Arctic, the Eskimos of Greenland have developed certain genetic_(32)that help them digest and utilize this fat-rich diet, thereby allowing them to_(33)in their cold climate.Like humans, killer whales have colonized a ran
7、ge of different_(34)across the globe, occupying every ocean basin on the planet, with an empire that_(35)from pole to pole. As such, different populations of killer whales have had to learn different hunting techniques in order to gain the upper hand over their local prey(猎物). This, in turn, has a m
8、ajor effect on their diet, leading scientists to_(36)that the ability to learn population-specific hunting methods could be driving the animals genetic development.【选项】A.acquiredB.adaptationsC.brutalD.deliberatelyE.expressedF.extendsG.habitatsH.humbleI.imageJ.literallyK.refinedL.revolvesM.speculateN
9、.structureO.thrivePart Reading Section BDirections: In this section, you are going to read a passage with ten statements attached to each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than
10、once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2.Living with parents edges out other living arrangements for 18-to 34-year -olds.A Broad demographic(人口的)shifts is marital status, educational attainment and employment have transf
11、ormed the way young adults in the U.S. are living, and a new Pew Research Center analysis highlights the implications of these changes for the most basic element of their liveswhere they call home. In 2014, for the first time in more than 130 years, adults ages 18 to 34 were slightly more likely to
12、be living in their parents home than they were to be living with a spouse or partner in their own household.B This turn of events is fueled primarily by the dramatic drop in the share of young Americans who are choosing to settle down romantically before age 35. Dating back to 1880, the most common
13、living arrangement among young adults has been living with a romantic partner, whether a spouse or a significant other. This type of arrangement peaked around 1960, when 62% of the nations 18-to 34-year -olds were living with a spouse or partner in their own household, and only one-in-five were livi
14、ng with their parents.C By 2014, 31.6% of young adults were living with a spouse or partner in their own household, below the share living in the home of their parent(s)(32.1%). Some 14% of young adults lived alone, were a single parent or lived with one or more roommates. The remaining 22% lived in
15、 the home of another family member (such as a grandparent, in-law or sibling(兄弟姐妹), a non-relative, or in group quarters like college dormitories.D Its worth noting that the overall share of young adults living with their parents was not at a record high in 2014. This arrangement peaked around 1940,
16、 when about 35% of the nations 18-to 34-year -olds lived with mom and/or dad (compared with 32% in 2014). What has changed, instead, is the relative share adopting different ways of living in early adulthood, with the decline of romantic coupling pushing living at home to the top of a much less uniform list of living arrangements.Among young adults, living ar
