语法与词汇The earths atmosphere recorded the huge decline in the population of the western hemisphere in the 150 years as following the arrival of Columbus from Spain in 1492
语法与词汇We were told during our________ briefing that these warehouses were abandoned
语法与词汇Early studies often concluded that the public was susceptible to the influence of mass communication
语法与词汇There never so many foreign guests come to our city as today, so learning English is important
语法与词汇Because the droplets or ice crystals in clouds are exceedingly small， the effect of gravity on them is minute
语法与词汇A certain amount of unemployment lubricates labor markets，maintaining a ready supply of workers for expanding businesses
语法与词汇The biggest challenge for hikers in this part of the mountain range is that water is scarce
语法与词汇Nowadays we can see numerous foreign films and TV programs________in and many other imported products dominating our markets
语法与词汇The nonverbal________communicated in business interactions through facialexpressions and the movements of arms, legs and hands are very important
语法与词汇The World Health Organization has helped to set up a surveillance system to ________ and control outbreaks of infectious diseases in the poor country
语法与词汇Volunteering on political campaigns can help students become a more attractive candidate for jobs in government
语法与词汇Researchers hypothesize that sharks sometimes confuse humans for another type of animals they usually consume，different from seals or fish
语法与词汇And by the third year of training, most residents have had didactic teaching about psychodynamic psychotherapy, but many have not had experiential clinical exposure to it
语法与词汇Some people find extremely difficult to get up early in the morning and do not seem able to get going very well until afternoon
语法与词汇As a comets orbit brings it closer to the sun，first the comet grows，then two ________tails usually form
语法与词汇The traffic police stopped three trucks heavily loading with merchandise that looked as grain bags
语法与词汇If researchers can determine exactly what is wrong with people who suffer from this condition, they may be able to suggest treatments that could relieve the effects of the damage
语法与词汇When stopped at a roadside hot dog stand, an airplane flew over our heads with such a deafening roar that we almost choked on the sodas we were drinking
语法与词汇United States citizens are now enjoying better dental health, as shown by the declining________ of tooth decay
语法与词汇Poland is somewhat a new destination for Chinese tourists, and Warsaw, the capital city, is an important business center with________night life and elegant dining