1、课时作业(十六)Unit 15Learning.单句语法填空1If he takes on this work，he will have no alternative but_(meet) an even greater challenge.答案：to meet2I dont know what will become_the boy if he keeps failing his examinations.答案：of3_a certain extent，raising wages means increasing purchasing power.答案：To4The doctor is sk
2、illed at treating heart trouble and never accepts any gift from his patients，so he has _ very good reputation.答案：a5Over a third of the population were believed to have no access _ the health care.答案：to6The driver took the man who was caught_(steal) on the bus to the police station.答案：stealing7At a _
3、(conserve) estimate，the trip will cost about 1,500.答案：conservative8The _(assign) may last for up to a year or so.答案：assignment9There is no doubt that the man is guilty and deserves _(punish)答案：punishment10The gift should be something the_(receive) will like.答案：receiver11Donna is very eager _(prove)
4、her value to the group.答案：to prove12Shes a _(practice) manager who realises that a happy workforce is also a productive one.答案：practical.单词拼写1The_(惩罚) should fit the crime he has committed.答案：punishment2Cheating in the game ruined that players_(名声)答案：reputaion3Her happy look_(反映) that she has done w
5、ell in the exam.答案：reflects4He looked through the suits and_(选择) the nicest one for me.答案：selected5Soldiers are expected to _(服从) their orders without question.答案：obey6I was not aware of the_(微小的) changes.答案：slight7All their neighbors think the couples lifestyle is_(另类的)答案：alternative8In every field
6、 of science，art，literature，drama，sport，they have made _(突出的) contributions.答案：outstanding9Dont _(误解) meI am grateful for all youve done.答案：misunderstand10Tom has too _(温和的) a nature to get angry，even if he has good cause.答案：mild.完成句子1我们输了比赛，这在一定程度上是我的过错。_，it was my fault that we lost the game.答案：To
7、a certain extent2到镇上唯一的通路是经过那座桥。The only_the town is across the bridge.答案：access to3如果战争爆发我们会怎样？_us if the war breaks out?答案：What will become of4中国人民以长城为骄傲。Chinese people are_the Great Wall.答案：proud of 5.我丢了工作，别无选择只好待在家里。I lost my job and I_stay at home.答案：had no alternative but to6茉莉希望我昨天去机场接她但我当时忙
8、于一个会议。Lily would rather I_her at the airport yesterday，but I was then busy with a meeting.答案：had met.阅读理解AIf you could travel back five centuries in time，youd come across a powerful Aztec empire in Central Mexico，a freshly painted “Mona Lisa” in Renaissance Europe and cooler temperatures across the
9、Northern Hemisphere (半球)This was a world in the middle of the Little Ice Age (A.D.1300 to 1850) and a period of vast European exploration now known as the Age of Discovery.But what if we could look 500 years into the future and catch sight of the Earth of the 26th century？Would the world seem as dif
10、ferent to us as the 21st century would seem to people of the 16th century？For starters，what will the weather be like?Depending on whom you ask，the 26th century will either be a little cold or terribly hot.Some suggest that by the 2500s，Earths climate will have cooled back down to near Little Ice Age
11、 conditions.Other studies predict that ongoing climate change and fossil fuel use will make much of the planet too hot for human life by 2300.Some experts date the beginning of human climate change back to the Industrial Revolution in the 1800s，others to slashandburn (刀耕火种的) agricultural Practices i
12、n prehistoric times.Either way，toolusing humans change their environmentand our 26th_century_tools might be quite impressive indeed.Theoretical physicist Michio Kaku predicts that in 100 years，well become a species that can control the entire sum of a planets energy.Using such power,26thcentury huma
13、ns will be masters of clean energy technologies.Furthermore，theyll be able to employ planetary (行星的) energy in order to control global climate.Physicist Freeman Dyson，on the other hand，thinks this would occur within roughly 200 years.What other technologies will shape the world of the 26th century？A
14、uthor Adrian Berry believes the average human life span will reach 140 years and that the digital storage of human personalities will enable a kind of computerized immortality (永生)Humans will farm the oceans，travel in starships and live on both moon and Mars while robots explore the outer space.语篇解读
15、本文介绍500年后的地球会发生什么变化。1Travelling back five centuries in time is mentioned to_.Areview historical eventsBintroduce Renaissance Europe to usChelp us leave records for future peopleDlet us realize the big changes that will come解析：推理判断题。从第二段的内容可知，第一段提及5000年前是想通过对比的方式让读者体会500年后的巨大变化。 答案：D2All the followin
16、g happened about 500 years ago EXCEPT that_.AMona Lisa was paintedBthe earth was a very cold placeCpeople in Europe explored a lotDAztec empire ruled in Central Mexico解析：细节理解题。根据第一段中cooler temperatures across the Northern Hemisphere可知，当时北半球比如今要凉爽些，但并非寒冷的地方。答案：B3Which of the following words can best
17、describe experts prediction about weather in the 26th century?AAccurate.BConsistent.CVarious.DFormal.解析：推理判断题。根据第三段中Depending on whom you ask，the 26th century will either be a little cold or terribly hot可知专家们的观点是相互不同的。答案：C4The underlined part “26th century tools” in Paragraph 4 probably refers to_.A
18、firesBfossil fuelsChuman laborDclean and planetary energy解析：推理判断题。根据前文Either way，toolusing humans change their environment可知之前人类使用的工具为fire或fossil fuels但根据第五段中可知，26世纪人们使用的是其他干净的能源和行星能源，故可知。答案：DBMost kinds of rose plants are native to Asia.But roses also grow in other parts of the world including nort
19、hwest Africa，Europe and the United States.In 1986，President Ronald Reagan announced the rose was Americas national flower.But the choice of the rose did not smell very sweet to many Americans.Contrary to the common thought，it is easy to grow roses if you start with a few suggestions from experts.Fir
20、st，choose a place to plant your roses where they can get sunshine for about six hours on bright days.You can buy potted roses，also known as container roses，or bareroot plants.Each kind has its fans.Some gardeners say potted roses are easier to plant.They say the roots develop better if they start wi
21、th potted roses.But considering the high cost of transporting roses，others point out that bareroot roses come without soil，so they weigh less to transport.Placing mulch (护根) around rose plants is normally a good idea.Mulch holds water in the soil.When you grow roses，the soil should be moist deep dow
22、n.To keep it wet，water the roses in the morning.You can avoid problems like black spots that way.Pay attention to the amount of water.Too much water can cause the leaves to become discolored.On these occasions，try temporarily pulling away mulch from the roots.Doing that will help dry the soil.If the
23、 soil is very dry，you can add peat (泥煤) to help condition it.If insects attack your roses，you may be able to force them off with just a spray (喷雾) of water.语篇解读如何种植玫瑰花，一起来看下本文吧！5What can we know about the rose in the first paragraph?AIt was liked by all Americans.BIt was made Americas national flowe
24、r.CMany countries chose it to be their national flower.DIt was widely planted in the United States.解析：细节理解题。根据第一段“In 1986，President Ronald Reagan announced the rose was Americas national flower.”可知，玫瑰是美国的国花。答案：B6What do most people think of roses?AThey are easy to grow.BThey are difficult to grow.CT
25、hey dont smell sweet.DThey are expensive to plant.解析：推理判断题。根据第二段“Contrary to the common thought，it is easy to grow roses if you start with a few suggestions from experts.”可推知，很多人认为种玫瑰很难。答案：B7Compared with potted roses，bareroot roses _.Acan save money when transportedBneed more sunshine to growChave
26、more supportersDcan develop better in soil解析：细节理解题。根据第二段“But considering the high cost of transporting roses，others point out that bareroot roses come without soil，so they weigh less to transport.”可知，无根玫瑰不需要土壤，因此重量轻，运费便宜。答案：A8The underlined word “moist” in the last paragraph probably means _.AwetBdryCnutrientDdark解析：词义猜测题。根据下文的“To keep it wet”可知，画线词意为“潮湿的”。答案：A