[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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