山东省济南市2017届高三二模考试(针对性训练)英语试卷(含答案)

experts believe that this is a big contributor to global climate change．Severe deforestation began in the 20th century，with 587，000 square kilometers lost up to the year 2000．Most deforested land is used for grassland to raise farm animals and agriculture．The addition of transport routes has led to increased settlement and deforestation，and at the present rate，scientists estimate that the Amazon rain forest will be reduced by 40％in two decades．

28．Why are the figures mentioned in Paragraph 1 ? A．To prove the forest untouched． B．To classify species scientifically． C．To show the diversity of species． D．To attract more attention to Amazon.

29．Why did most indigenous inhabitants in the Amazon region die? A．European explorers brought diseases there． B．Portuguese explorers treated them badly． C．A lot of trees were cut down and burned． D．They got killed by Spanish explorers．

30．What can be inferred about the Amazon rain forest? A．It has the largest number of species． B．It covers over 5％of South America． C．It is becoming larger in area． D．It is being endangered now．

31．What may be included in the following paragraph? A．Examples of destroying forests． B．Measures to protect rain forests． C．New settlements in Amazon． D．Ways to stop global warming．

D

Password fatigue(疲劳)is the feeling experienced by many people who are required to remember an increasing number of passwords as part of their daily routine，such as to log on to a computer at work，undo

a bicycle lock or conduct banking from an ATM.

The increasing importance of information technology and the Internet in employment，finance，recreation and other aspects of people’s lives，and the following introduction of secure deal technology，has led to people accumulating a sudden increase in accounts and passwords．According to a survey of British online-security consultant NTA Monitor，the typical regular computer user has 21 accounts that require a password．

Other things causing password fatigue are：demands that a user create a new password that uses particular pattern of letters，numbers and special characters；demands that the user type the new password twice；blind typing，both when responding to a password immediately and when setting a new password．

Aside from contributing to stress，password fatigue may encourage people to adopt habits that reduce the security of their protected information．For example，an account holder might use the same password for several different accounts，deliberately choose easy-to-remember passwords that are more likely to be solved，or rely on written records of their passwords．

Password fatigue will typically affect users，but can also affect technical departments who manage user accounts as they are constantly resetting passwords．This situation ends up lowering confidence and enthusiasm in both cases．

Some companies are well organized in this respect，and have employed alternative methods or adopted technologies so that a user’s certificates are entered automatically，but others may not focus on ease of use or even worsen the situation by constantly carrying out new applications with their own certification system．

32．What is the main idea of Paragraphs 2? A．Reasons for password fatigue． B．Definition of password fatigue． C．Roles of the Internet in daily life． D．A survey on regular computer users．

33．What may password fatigue cause people to do? A．To choose complex passwords． B．To improve their memory．

C．To use the same passwords. D．To learn passwords by heart．

34．What can we infer about password fatigue? A．It may create new accounts． B．It can be finally solved in future． C．It can encourage account holders． D．It will continue to exist for ever．

35．Which of the following shows the structure of the text?(P=Paragraph)

第二节(共5小题；每小题2分，满分10分)

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 Chicken is a popular food In many countries． 36 ．Britain alone processes more than 945 million white-feathered chickens every year，creating tons of leftover feathers．

Two students from Imperial College London，Elena Dieckman and Ryan Robinson，want to turn these feathers into something useful. They are studying how to use them in other ways，like keeping homes warm，for example．

Why are feathers useful? Bird feathers have long been used in clothing and in bedding．Manufacturers often use feathers because of their light weight and the warmth they provide in a cold room or climate． 37 ．They are designed by nature to protect birds from really harsh environments．They are super lightweight，waterproof and bio-degradable(可生物降解的)．So it’s a really great material．Robinson adds that their goal is to develop ways to use the entire feather，not just parts of it．38 ．

Elena Dieckman and Ryan Robinson are each working toward a Doctor of Philosophy degree，or PhD．They are the founders of a start-up company called Aeropowder． 39 ．They developed a biodegradable product that could replace man-made insulation(隔音)．Biodegradable materials are capable of being slowly broken down through natural processes.

40 ．The $ 23，000 they won in the competition helped them start their company，Aeropowder． A．If successful，they may help prevent the waste of this useful natural material．