[外语类试卷]国家公共英语三级(天气与气候)练习试卷8及答案与解析.doc
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1、国家公共英语三级(天气与气候)练习试卷 8及答案与解析 Part B Directions: You will hear four dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each question by choosing A, B, C or D. After listening, you will have 10 seconds
2、 to check your answer to each question. You will hear each piece ONLY ONCE. 1 What led to the conversation? ( A) A recent local storm. ( B) A recent radio program. ( C) A course the speakers are taking. ( D) Research being done by one of the speakers. 2 Where does thunder occur? ( A) Where cool air
3、hits mountains. ( B) Where lightning occurs. ( C) Near electrical wires. ( D) Underneath the clouds. 3 Why is lightning sometimes NOT seen during a thunder storm? ( A) It doesnt always occur. ( B) It is too faint to seen. ( C) It happens in a distant city. ( D) It is concealed by clouds. 一、 Section
4、II Use of English (15 minutes) Directions: Read the following text. Choose the best word or phrase for each numbered blank and mark A, B, C or D on ANSWER SHEET 1. 3 Text . Fossil fuels burned to【 C1】 _cars and trucks,【 C2】 _homes and businesses, and power factories are【 C3】 _for about 98% of US car
5、bon dioxide emissions, 24% of methane emissions, and 18% of nitrous oxide emissions. Increased agriculture, deforestation,【 C4】 _, industrial production, and mining also contribute a significant【 C5】 _of emissions. In 1997, the United States【 C6】_about one-fifth of total global greenhouse gases. The
6、 20th century s 10 warmest years all【 C7】 _in the last 15 years of the century. Of these, 1998 was the warmest year on【 C8】 _. The snow【 C9】_in the Northern Hemisphere and floating ice in the Arctic Ocean have decreased. Globally, sea level has【 C10】 _4 8 inches over the past century. Worldwide prec
7、ipitation over land has increased by about one percent. The【 C11】 _of extreme rainfall events has increased throughout much of the United States. Increasing concentrations of greenhouse gases are likely to【 C12】 _the rate of climate change. Scientists expect that the average global surface temperatu
8、re could rise 1 4.5 (0.6 2.5 )in the next fifty years, and 2.2 10 (1.4 5.8 )in the next century,【 C13】 _significant regional variation. Evaporation will increase【 C14】_the climate warms,【 C15】 _will increase average global precipitation. Soil moisture is likely to decline in many regions, and【 C16】
9、_rainstorms are likely to become more frequent. Sea level is likely to rise two feet along most of the US coasts.【 C17】 _of climate change for specific areas are much less reliable than【 C18】_ones, and it is unclear【 C19】 _regional climate will become more【 C20】 _. 4 【 C1】 ( A) drive ( B) operate (
10、C) run ( D) motivate 5 【 C2】 ( A) heated ( B) heighten ( C) lighten ( D) heat 6 【 C3】 ( A) occupied ( B) taken ( C) responsible ( D) dispensable 7 【 C4】 ( A) landing ( B) landfills ( C) landscape ( D) landings 8 【 C5】 ( A) piece ( B) part ( C) share ( D) component 9 【 C6】 ( A) charged ( B) sent off
11、( C) give out ( D) emitted 10 【 C7】 ( A) incurred ( B) occurred ( C) incured ( D) occured 11 【 C8】 ( A) note ( B) line ( C) record ( D) time 12 【 C9】 ( A) hides ( B) buries ( C) occupied ( D) covers 13 【 C10】 ( A) risen ( B) increased ( C) raised ( D) arose 14 【 C11】 ( A) rate ( B) ratio ( C) tenden
12、cy ( D) frequency 15 【 C12】 ( A) accelerating ( B) accelerate ( C) accelerated ( D) accelerates 16 【 C13】 ( A) being ( B) with ( C) in ( D) to 17 【 C14】 ( A) as ( B) while ( C) when ( D) as if 18 【 C15】 ( A) that ( B) who ( C) what ( D) which 19 【 C16】 ( A) intensive ( B) intense ( C) extensive ( D)
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