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In 1990 a report was published about what the earth might be like 20 years from then on. The report was a result of a three-year 36 . According to the report, the picture of the earth in the year 2010 is not a 37 one. The world will be more 38 because the population will continue to grow . The population could be 39 6 300 million, almost 2 115 million more than in 1985 .More people would move into cities, especially cities in 40 countries . Cities like Cairo and Jakarta probably would 41 have 15 million by then . Food production will 42 , but not enough to feed all the people . Farmers will grow 90% more food than they did in 1985, 43 most of the increase would be in countries that 44 produce enough food for their people . Little increase is 45 in South Asia, Africa and the Middle East . Poor farming ways are 46 large areas of crop land, changing farms into deserts . More farmland is 47 as cities become larger and more houses are built . 48 will get worse as industrial countries burn more coal and oil .Many of the world’s 49 could disappear as more and more trees are cut down . Energy will continue to be a serious problem . The experts say their picture of the earth for the year 2010 50 . They only carried out the situation that 51 today . By changing the situation, by 52 the problems, the picture can be changed . There is 53 time for the nations of the world to work 54 a plan of action . But they warned that 55 too long to make decisions would greatly reduce the chances of success . 小题1: A.learning B.project C.notice D.study 小题2: A.pleased B.pleasant C.safe D.blue 小题3: A.dangerous B.beautiful C.crowded D.terrible 小题4: A.no more than B.as many as C.as much as D.as large as 小题5: A.developing B.developed C.big D.mountainous 小题6: A.none B.each C.all D.neither 小题7: A.insist B.reduce C.increase D.continue 小题8: A.so B.but C.or D.however 小题9: A.already B.hardly C.partly D.never 小题10: A.wanted B.lacked C.founded D.expected 小题11: A.destroying B.protecting C.disturbing D.interrupting 小题12: A.saved B.lost C.discovered D.used 小题13: A.Air pollution B.Water pollution C.Some diseases D.All farmland 小题14: A.Animals B.plants C.forests D.people 小题15: A.must be true B.will come true C.can’t be true D.may be wrong 小题16:A. happens       B develops          C .exists            D. appears 小题17: A.settling B.working at C.answering D.dealing 小题18: A.no B.still C.less D.plenty of 小题19: A.about B.in C.out D.for 小题20: A.working B.suggesting C.spending D.waiting
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【简答题】可变进气歧管可根据( )和( )的变化,通过电脑控制而自动改变,在所有转速下都可使发动机的转矩平均提高8%。
【单选题】我国对旅游业的定位是
A.
战略性先导产业
B.
战略性重要产业
C.
战略性窗口产业
D.
战略性支柱产业
【单选题】I think he’s determined that he won’t give in—you may try your luck and see if you can persuade that old________fellow.
A.
stubborn
B.
uneducated
C.
friendly
D.
responsible
【单选题】目前,我国旅游业的定位是( )。
A.
经济性产业
B.
国民经济新的增长点
C.
国民经济中的重要产业
D.
国民经济的战略性支柱产业
【多选题】社会主义核心价值观以其 二居于人类社会的价值制高点
A.
先进性
B.
人民性
C.
真实性
D.
长期性
【单选题】— Hello! May I speak to Tom? — Sorry, he isn't in. ______________? [     ]
A.
Who are you
B.
Who's this
C.
Who's that
D.
What is it
【单选题】可变长度的进气歧管能根据发动机转速和()的变化而自动改变有效长度。
A.
负荷
B.
喷油量
C.
进气正时
D.
点火提前角
【判断题】压电式传感器是利用压电晶体的顺压电效应将振动参量转变为电信号的一种电气式传感器,通常做成加速度传感器,用来测量振动物体的加速度。( )
A.
正确
B.
错误
【单选题】超声波换能器是根据“压电效应”和“逆压电效应”原理实现电能-超声能的相互转换的。
A.
顺压电效应
B.
压电效应
C.
动压电效应
D.
静压电效应
【单选题】目前,我国旅游业的定位是( )。
A.
经济性产业
B.
国民经济的战略性支柱产业
C.
国民经济新的增长点
D.
国民经济中的重要产业
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