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1、【成才之路】2014-2015学年高中英语 unit 5 Canada“The True North”第4课时 Unit Revision强化练习 新人教版必修3.六选五根据短文内容，从下面的选项中选出能概括每一段主题的最佳选项。选项中有一项为多余项。AThe likely reason of global warmingBGlobal warminga world problemCThe fast increase in recent yearsDWhat we should do to avoid greenhouse gases producingEThe earth is becomi
2、ng warmerFDifferent opinions on the cause of global warming1_Is the world warming up? According to many reports, the answer is yes. Eleven of the hottest years since 1850 appeared between 1995 and 2006. Last year, the United Nations Intergovernment Panel on Climate Change (IPCC) reported the earth w
3、as about 0.75 warmer than it was in 1850. While this doesnt sound like a lot, a small difference in average temperature can make a big difference in climate. During the last Ice Age, the planet was only about five degrees colder than now.2_Its all about the speed at which temperatures are changing.
4、In the past, temperatures moved up or down step by step. But in the 20th century, especially since 1976, temperatures have likely risen more quickly than during any century in the last 1000 years. Warming may bring improved harvests to northern countries such as Canada and Russia. However, many spec
5、ies wont like these conditions. They begin moving towards cooler places and cause lots of trouble to human world.3_The IPCC reported that human activity is very likely responsible by increasing the greenhouse effect. Some gases cause the air to take in heat energy. Without the greenhouse effect, the
6、 earths average temperature would be 18 rather than the present comfortable 14.6. The main greenhouse gases are carbon dioxide, water vapor and some other gases. Burning oil, coal and waste adds to the carbon dioxide, and it has increased 35% since 1850.4_Many researchers have found that natural for
7、ces alone dont explain the temperature increases over the last 30 to 40 years. Their study shows that as carbon dioxide goes up, temperature will rise, too. But some scientists dont agree. They think the effect of human produced greenhouse gases is very small compared to the normal changes that the
8、climate causes.5_When asked whether humans are causing the world warming, Carl Wunsch, a professor at Massachusetts Institute of Technology says, “ It seems very likely from what Ive seen. Is it 100% sure? No. There is something to do with natural changes.” Does that mean we should have a “waitandse
9、e” attitude? Not according to Wunsch. He points out we buy house insurance not because we are sure our homes will be on fire, but because its a danger wed rather avoid.答案：15ECAFD.阅读表达阅读下面短文，并根据短文后的要求回答问题(请注意问题后的字数要求)。1Canadian culture was heavily influenced by British culture and traditions.Now one
10、can also notice the influence of American culture.Over the years, lots of people have moved to Canada.There has been a healthy change of Canadians ideas that has resulted in the development of certain special features in Canada.The people of Canada have always been proud of their diverse cultural ba
11、ckgrounds.2Art: Canada has some of the most wonderful classical works of art.In the year 1930, artists began developing their own personal style.The “Group of Seven” is considered to be the first group of native artists to create their own style.3Language and religion: Because of its diverse culture
12、s, Canada has two official languages, English and French.There is _.A number of people in Canada have confirmed that they have no religious belief, though there are many other groups that follow Protestantism as a religion.4Literature: The literature of Canada basically shows the different cultural
13、influences of other countries.Some of the early works were divided according to the region of Canada from which the author came, but there were also authors who gave a humorous touch to serious contents.A number of authors have been awarded for their literature works.5Music: Music in Canada has seen
14、 many developments in styles along the way.Many Canadian; musicians have earned worldwide fame.From folk music to rock, Canadian music continues to entertain people.In recent years, music from Asia and Africa has found quite a fan following in Canada.1What is the main idea of the text? (no more than
15、 3 words)_2Fill in the blank in Paragraph 3 with proper words. (no more than 3 words)_3What does the word “their” (Para. 1) refer to? (no more than 2 words)_4Canadian culture has been influenced by many other countries.List all of them mentioned in the text._5Complete the following statement with proper words.(no more than 5 words)Recently, music fro
