随着考试的临近，大家都想在考前做一些比较有针对性的练习，中国研教网的老师就为大家总结的一些模拟试题：

 

　　1、 Where did you get those oranges? They are not easy to _____ at this time of the year.

　　A. come into

　　B. come across

　　C. come round

　　D. come by

 

　　2、 She _____ preparing dinner as soon as she got home.

　　A. set out

　　B. set about

　　C. set forth

　　D. set aside

 

　　3、 The contract will _____ at the end of next month.

　　A. run over

　　B. run across

　　C. run down

　　D. run out

 

　　4、 She has _____ jogging for twenty years.

　　A. insisted on

　　B. consisted in

　　C. constituted for

　　D. persisted in

 

　　5、 He felt rather at a _____ talking to her， because she was so clever.

　　A. fault

　　B. defect

　　C. disadvantage

　　D. mistake

 

　　. The__________of the spring water attracts a lot of visitors from other parts of the country.

　　A. clash　　　　　　B. clarify　　　　　　C. clarity　　　　　　D. clatter

 

　　6. Business in this area has been__________because prices are too high.

　　A. prosperous　　　 B. secretive　　　　　C. slack　　　　　　D. shrill

 

　　7. He told a story about his sister who was in a sad__________when she was ill and had no money.

　　A. plight　　　　　 B. polarization　　　　C. plague　　　　　 D. pigment

 

　　8. He added a__________to his letter by saying that he would arrive before 8 pm.

　　A. presidency　　　 B. prestige　　　　　 C. postscript　　　　 D. preliminary

 

　　9. Some linguists believe that the__________age for children learning a foreign language is 5 to 8.

　　A. optimistic　　　 B. optional　　　　　 C. optimal　　　　　 D. oppressed

 

　　10. It all started in 1950, when people began to build their houses on the__________of their cities.

　　A. paradises　　　　B. omissions　　　　 C. orchards　　　　　D. outskirts

 

　　11. The meeting was__________over by the mayor of the city.

　　A. presumed　　　　 B. proposed　　　　　C. presented　　　　D. presided

 

　　12. The crowd__________into the hall and some had to stand outside.

　　A. outgrew　　　　　B. overthrew　　　　 C. overpassed　　　　D. overflew

 

　　13. It was clear that the storm__________his arrival by two hours.

　　A. retarded　　　　 B. retired　　　　　 C. refrained　　　　　D. retreated

 

　　14. This problem should be discussed first, for it takes__________over all the other issues.

　　A. precedence　　　　B. prosperity　　　　C. presumption　　　 D. probability

 

　　15. Her sadness was obvious, but she believed that her feeling of depression was__________.

　　A. torrent　　　　　　B. transient　　　　 C. tensile　　　　　 D. textured

 

　　16. Nobody knew how he came up with this__________idea about the trip.

　　A. weary　　　　　　B. twilight　　　　　C. unanimous　　　　D. weird

 

　　17. The flower under the sun would__________quickly without any protection.

　　A. wink　　　　　　 B. withhold　　　　 C. wither　　　　　 D. widower

 

　　18. The__________of gifted children into accelerated classes will start next week according to their academic performance.

　　A. segregation　　　　 B. specification　　　C. spectrum　　　　D. subscription

 

　　Each year, millions of people in Bangladesh drink ground water that has been polluted by naturally high levels of arsenic poison. Finding safe drinking water in that country can be a problem. However, International Development Enterprises has a low-cost answer. This non-governmental organization has developed technology to harvest rainwater.People around the world have been harvesting rainwater for centuries. It is a safe, dependable source of drinking water. Unlike ground water, rainwater contains no minerals or salts and is free of chemical treatments. Best of all, it is free.The rainwater harvesting system created by International Development Enterprises uses pipes to collect water from the tops of buildings. The pipes stretch from the tops of buildings to a two-meter tall storage tank made of metal. At the top of the tank is a so-called “first-flush”device made of wire screen. This barrier prevents dirt and leaves in the water from falling inside the tank.A fitted cover sits over the “first-flush” device. It protects the water inside the tank from evaporating. The cover also prevents mosquito insects from laying eggs in the water.Inside the tank is a low coat plastic bag that collects the water. The bag sits inside another plastic bag similar to those used to hold grains. The two bags are supported inside the metal tank. All total, the water storage system can hold up to three-thousand-five-hundred liters of water. International Development Enterprises says the inner bags may need to be replaced every two to three years. However, if the bags are not damaged by sunlight, they could last even longer.International Development Enterprises says the water harvesting system should be built on a raised structure to prevent insects from eating into it at the bottom. The total cost to build this rainwater harvesting system is about forty dollars. However, International Development Enterprises expects the price to drop over time. The group says one tank can provide a family of five with enough rainwater to survive a five-month dry season.

 

　　41. People in Bangladesh can use__________as a safe source of drinking water.

　　A. ground water　　B. rainwater　　C. drinking water　　D. fresh water

 

　　42. Which of the following contributes to the low-cost of using rainwater?

　　A. Rainwater is free of chemical treatments.

　　B. People have been harvesting rainwater for centuries.

　　C. The water harvesting system is built on a platform.

　　D. Rainwater can be collected using pipes.

 

　　43. Which of the following actually prevents dirt and leaves from falling inside the tank?

　　A. a barrier　　B. a wire screen　　C. a first-flush　　D. a storage

tank

 

　　44. The bags used to hold water are likely to be damaged by__________.

　　A. mosquito insects　　B. a fitted cover　　C. a first-flush device　　D. sunlight

 

　　45. What should be done to prevent insects from eating into the water harvesting system at the bottom?

　　A. The two bags holding the water should be put inside the metal tank.

　　B. The inner bags need to be replaced every two years.

　　C. The water harvesting system should be built on a platform.

　　D. A cover should be used to prevent insects from eating it.