1、Units 34时间：30分钟.单项填空1At _ good news，she felt confused for _ moment，and then began to burst into laughter.Athe；the Bthe；a Ca；the Da；a答案B第一空是特指，所以填the；第二空for a moment意为“一会儿”。 2Many years later，the father returned form the army and found that his daughter was no longer _ she used to be.Awhat Bhow Cwhen
2、 Dwhom答案Awhat引导的从句在句中作表语(即表语从句)，what又在表语从句中作表语。3The two birds _ each other in shape and color，in other words，they _ each other in shape and color.Adiffer；are different fromBdiffer from；are different withCresemble；are similar toDresemble；are similar with答案C正确的“不同”与“相似”的表达分别是：A differs from B或A is dif
3、ferent from B和A is similar to B。4With a chicken _ on the fire，I cant leave even for a minute.Atoasting BtoastedCto be toasted Dbeing toasted答案D用v.ing形式的被动式作宾补，表示宾语a chicken正在火上被烧烤。5I cant tolerate being made fun of，_ never to come again.Adetermined Bbeing determinedCdetermine Dto determine答案A形容词dete
4、rmined在此处作状语，说明主语的状态。6The shepherd had to round up the sheep _ first night fell.Auntil Bbefore Cafter Dtill答案Bbefore引导的时间状语从句，符合题意。7My daughter did very well in the midterm exam，_ first on the list of all the students.Agetting Branking Cto rank Dto get答案Branking first.是分词短语作状语。8_ on the small island
5、，the tower has been seriously damaged by the seawater.ABeing lain BLainCBeing located DLocated答案D表“位于”可用locate的过去分词located。动词lie表示“位于”为不及物动词，无被动式。9Every painting she _ to her country，which was her will.Ahad been contributed Bhad to be contributedChad contribute Dhad was contributed答案D此题的主干是Every pai
6、nting was contributed to her country，which was her will.其中she had是定语从句修饰先行词every painting。10Hundreds of small islands spread out on the vast sea _ the famous coast.Aon Bover Caround Doff答案Doff the coast意为“在海面上”。 11Canada has almost _ as China，but it doesnt have _ as that of China.Athe same size；so a
7、 large populationBthe same size；so large a populationCas；as a large populationDso large；as large population答案B同级比较要用“as/soadj./adv. as”或“as/soadj.a可数名词单数as”结构，其中so一般只用于否定句中。12Today in Australia，there are thousands of creatures，_ are endangered by human beings.Amany of them Bmost whomCthe majority of
8、 which Dwhose many答案C先行词为事物，故选C。13Nowadays many young girls are losing weight，so they eat _ food.Aa few Ba little of Ca bit Da bit of答案D“一点食物”可译为：a bit of food或a little food。14Dont forget to bring the box to Lily，_？Aare you Bwill you Cdo you Dshall we答案B祈使句的反意疑问句一般用will you。15Jack likes swimming，but
9、 he doesnt enjoy skating._.ASo do I BIt is so with meCNeither do I DSo it is with me答案D前面部分的两个谓语，一个是肯定，一个是否定，一般不用A、C，可用So it is with.或It is the same with.。.阅读理解ASix astronauts are about to experience what its like to travel to Mars and back，only without actually leaving Earth.Three Russian astronaut
10、s will join three colleagues from other countries as they are locked up together for a year and a half on a simulated(模仿的) mission to Mars.The mission is called Mars500.The Mars500 mission at Moscows Institute of Biomedical Problems will test the psychological and physical effects of longterm isolat
11、ion on humans.The groups leader，engineer Sytev，looks at the threesquaremeter place that will be his personal habitation.“This phone will work for only 11 days.When we are near the Earth，it will be switched off，” said Sytev.Sytev is a newlywed.He says the most difficult thing will be to be separated
12、from his wife and the persons around him.He finds it difficult to leave some of his habits behindall their activities will be directed towards a certain goal and that he wont see sunsets，sunrises，wont feel rain for 18 months.After 250 days，three of the astronauts will simulate landing on Mars.The ot
13、her three will wait for themin the mock spacecraftfor a month.All communication with Earth will be via email and will have as much as a 40minute delay，like on a real Mars mission.Suvorov is a physician.He and other scientists will monitor the astronauts.“This experiment is unique because the six per
14、sons will be isolated for a long period of time，” noted Suvorov.“They will have to make decisions on their own and only then report to the Earth，and the Earth will tell them whether they did the right thing or not.”He says the experiment will pave the way for a real Mars journey later this century.“
15、We are going to determine how much food and other products of daily use are needed，and how people of different cultures，of different training can find common language and work on performing their tasks，” added Suvorov.Mars500 is the third in a series of flight simulations.The earlier ones were short
16、er.The current experiment is set to end in November 2011.【语篇解读】 远征火星，这个梦离现实并不远。Mars500计划最近招募了6名国际宇航员进行为时一年半的模拟训练。1The underlined word “mock” in Paragraph 4 means _.Asimulated BadvancedCsmall Dcomfortable答案A词义猜测题。根据文章主要内容可知，这是一次仿真模拟实验，这艘宇宙飞船也是仿真的，故选A。2What do we learn about the Mars500 mission accord
17、ing to the text?AThe base is located in New York，America.BIt is a simulation program designed for the future space expedition.CAll astronauts will spend 18 months in the spacecraft.DAstronauts cant use any mobile phone during the experiment.答案B细节理解题。从第一段和最后一段可知，Mars500是一次长达1年半的模拟训练。3What is the most
18、 difficult thing that Sytev will face during their training?AStanding the isolation and loneliness.BThere existing a 40minute delay.CLacking food and other products.DBeing monitored by Suvorov and other scientists.答案A细节理解题。从第三段可知A项正确。4We can learn from Suvorovs words that _.Aits hard for the astrona
19、uts to perform their tasks togetherBmore experiments will be carried out for a real journeyCthe astronauts should learn to make decisions on their ownDdifferent cultures of the astronauts dont matter any more答案C细节理解题。从第五段可知答案为C。BToday we tell you about some new understanding of why cutting the main
20、branch of a plant or tree can lead to better development.The findings are from researchers on two_continents.Professor Prezemyslaw Prusinkiewicz of the University of Calgary in Canada led the research with scientists from Britain and Sweden.Their study appears in the Proceedings of the National Acad
21、emy of Sciences.Researchers have known since the 1930s that the actively growing tip of a plant produces a hormone(荷尔蒙) called auxin(生长素)This hormone flows down the main stem.Scientists say the auxin has an indirect effect on buds(芽) on the side of the stem to prevent branching.These buds themselves
22、 also produce auxin.The research suggests that to grow，they have to be able to export the hormone into the main stem.But the flow from the stem tip prevents them from doing this.The researchers wanted to find out how this blocking happens.Professor Prusinkiewicz is on leave in Australia，but he sent
23、us an email suggesting a simple way to understand the process.Think of a major road crowded with traffic.So many cars are on the main road that the cars on the side roads cannot enter.The stem is like the crowded main road.The new research shows that the buds on the side cannot export their auxin in
24、to the main stem because it is too full.But if that main shoot is pruned(修剪)，other buds below it can start exporting.They are no longer prevented from growing.Ottoline Leyser from the University of York says that after a plant is pruned，all the inhibited(被抑制的) shoot tips compete with each other to g
25、row.In doing this，the branches influence each others growth.Nearby shoot tips are more likely to affect each other than those that are far apart from each other.Professor Leyser says the strongest branches grow best，wherever they may be on the plant.The study found that the main shoot grows the best
26、 of all not because of its position at the top of the plant，but mostly because it got there first.【语篇解读】 本文讲述了关于降低植物顶端优势，修剪树木主干的新的理解。5The underlined part “two continents” in Paragraph 2 refers to “_”AAsia and Africa BAfrica and EuropeCNorth America and Europe DAustralia and Europe答案C细节推理题。根据第二段提及的科学
27、家的国籍可推测出，Canada属于北美，而Britain and Sweden属于欧洲。6Professor Prusinkiewicz compares the cars on the side roads to _.Aplant stems Bplant buds Cthe leaves of a plant Dthe roots of a plant答案B细节理解题。根据文章第五、六段可知，Professor Prusinkiewicz把植物的芽比作马路支路上的汽车。7To make the buds on the side of the stem to grow better，the
28、main shoot should _.Abe cut offBbe protectedCbe watered as much as possibleDbe given much auxin答案A推理判断题。根据第六段if that main shoot is pruned，other buds below it can start exporting.可知，为了让枝干上的芽生长，树顶的主芽应修剪掉。8According to the passage，which of the following is TRUE?AResearchers have recently found out that
29、 the growing tip of a plant produces hormones.BAuxin has a direct effect on buds to keep branches from growing.CBuds on the side of the stem cant produce hormones.DIn order to grow，the buds on the side of the stem export the hormones into the main stem.答案D细节理解题。根据第三段第一句话可知，科学家早在20世纪30年代就发现了植物快速生长的尖部产生荷尔蒙，A错误；由第三段第三句可知B错误；由第四段首句可知芽也可以产生生长素，C错误；D表述与第四段意思相符。