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1、-精品文档 ! 值得拥有！ - -珍贵文档 ! 值得收藏！ - 限时精练五 45分钟综合性过关小练习(二) 注意事项 : 1. 答题前,考生务必将学校、班级、姓名写在密封线内。 2. 请将选择题的答案根据老师批改需要填写在试卷第3页所附的答题栏内。 一、 阅读理解 请认真阅读下列短文 ,从短文后各题所给的 A、B、C、D四个选项中 ,选出最 佳选项。 A If the eyes are the romantic swindow into the soul, then the teeth are an anthropologists(人类学家 ) door to the stomach. In
2、a study published recently in the journal Science, Peter Ungar of the University of Arkansas and his partner, Matt Sponheimer of the University of Colorado, US, examined the teeth of ancient human beings to find out what they were really eating. They already knew that different foods causedifferent
3、marks on teeth. Some causescratches,while others causepits(坑). The carbon left on teeth by different foods is also different. Tropical grasses,for example, leave one kind of carbon, but trees and bushes leave another kind becausethey photosynthesize( 进行光合 作用) differently. Traditionally, scientists h
4、ad looked at the size and shapeof teeth and skulls(头 骨) to figure out what early humans ate. Big flat teeth were taken to be signs that they ate nuts and seeds,while hard and sharp teeth seemedgood for cutting meat -精品文档 ! 值得拥有！ - -珍贵文档 ! 值得收藏！ - and leaves. But this was proved wrong. The best examp
5、le was the Paranthropus( 傍人属类人猿 ), one of our close cousins, some of whom lived in easternAfrica. Scientists used to believe that they atenuts, fruits andseedsbecausethey hadbig crests( 突起) on their skulls, suggesting that they had large chewing musclesand big teeth. If this had beentrue, their teet
6、h should have been covered with pits like the surface of the moon. They would also have had a particular type of carbon on their teeth that typically comes from tree products, such as nuts and seeds. However, when the two scientists studied the Paranthropus,it turned out to have none of these charac
7、teristics. The teeth had a different kind of carbon, and were covered with scratches,not pits. This suggestedthey probably ate grass, not nuts and seeds.It was the exact opposite of what people had expected to find. Carbon “ footprints”give us a completely new and different understanding of what dif
8、ferent speciesate and the different environments they lived in. If a certain specieshad the kind of carbon on its teeth that camefrom grasses,it probably lived on tropical grassland, for example. ()1. The underlined sentencein Paragraph1 probably meansthat anthropologists can. A. know the structure
9、of human stomachs by studying their teeth B. find out the diet of early humans by studying their teeth C. learn whether humans were healthy by looking at their teeth D. get the most useful information about humans from their teeth ()2. According to Paragraphs35, which of the following statementsis T
10、RUE? A. Pits on teeth are caused by eating grass or leaves. B. Scratches on teeth are caused by eating nuts or seeds. -精品文档 ! 值得拥有！ - -珍贵文档 ! 值得收藏！ - C. Different foods leave different marks and carbon on teeth. D. Early humans with hard and sharp teeth ate meat and leaves. ()3. The example of the P
11、aranthropus was mentioned in order to tell us. A. they were one of our close cousins living in eastern Africa B. living environment makes a difference to skull structure C. they had different eating habits from other humans D. the size and shape of teeth dontshow accurately what early humans ate ()4
12、. Which of the following structuresshowsthe bestorganization of the article? CP: Central PointPara.: ParagraphP: PointSp: Sub-point(次要点 ) C: Conclusion A B -精品文档 ! 值得拥有！ - -珍贵文档 ! 值得收藏！ - C D B Deception(骗术) is something that people do all the time, and it plays an important role in military(军事的 ) s
13、trategy.Now someresearchersaretrying to figure out how to get robots to do it by looking at the behavior of squirrels and birds. At Georgia Tech, a team led by Ronald Arkin, a professor at the School of Interactive Computing, studied the literature on squirrels hiding their acorns(橡果). Squirrels wil
14、l hide their food in a certain place, but when they seeother squirrels trying to steal from them, they attempt to fool the thieves by running to a false location. Ronald Arkin and his PhD studentJaeeunShim usedthat as a model for robot behavior. They programmed the robot into tricking a “ predator(捕
15、食者 )”machine by doing what a squirrel does: showing the enemy a false location for an important resource. The team also looked at how other animalsin this case, a species of bird called Arabian babblerdrive off predators.A babblerwill make analarm call when they seea predator and other babblerswill
16、join the bird and make more calls. They then surround the predator, all the while flapping(拍打) wings and making noises. The babblers dontever actually fight the animal they want to drive off; they just makeenoughnoisesand flaps aroundenoughso that it seemsthat attacking a babbler isn tworth it. They
17、 found that the deception works when the group reachesa certain sizeessentially, when enough birds arrive to convince the enemy that it sbest to back off. Davis modeled that behavior in software using a military scene and found that it worked even if the group didn thave the firepower to confront th
18、e enemy directly. -精品文档 ! 值得拥有！ - -珍贵文档 ! 值得收藏！ - The military is interested in this becausea robot that can fool an opponent is a valuable tool. It could lead an enemy down a false trail or make itself look more dangerous than it actually is. ()5. Why does the military want to take advantage of squ
19、irrelstrick? A. It can reduce the use of firepower to confront the enemy. B. It can fool the enemy into believing it is more dangerous. C. It can lead the enemy in a wrong direction to avoid losing resources. D. It can scare the enemy away who wants to destroy the acorns. ()6. Which of the following
20、 is NOT the way Arabian babblers drive off predators? A. One bird makes an alarm call and other birds willjoin it. B. They fight the enemy bravely face to face. C. They make noises and flaps around the predator. D. They force the predator aware that it isn tworthwhile to attack. ()7. What is the mai
21、n idea of the passage? A. Animals behaviors are researchedto be applied to the study of military robots. B. Robots fooling tricks are applied to the study of animals behaviors. C. Birds and squirrels are the animals that are good at deception. D. Researchersare interested in animals military-related
22、 behaviors. 二、 任务型阅读 请认真阅读下列短文 ,并根据所读内容在文章后表格中的空格里填入一个最 恰当的单词。 注意:每个空格只填 1个单词。 -精品文档 ! 值得拥有！ - -珍贵文档 ! 值得收藏！ - There are many destructive(破坏性的 ) forces when it comes to nature, which havedestroyedwhole cities andkilled many people.Theyre really terrible, but they occur somewhat often, and this is wh
23、y you seeso many charities thesedays which focus their efforts on helping people who have been affected by natural disasters. While the world is a very beautiful place to live in, there will always be parts of the world where natural disastershappen more often than in other places, where properties
24、and lives are destroyed. Only the people who live in the country where tsunamisand earthquakesaswell as other disastersoccur experiencethese,and we can only imagine the suffering that they go through. For some people out there, the world is cruel, but they have no choice but to stay where they are.
25、A lot of the time people simply cannot afford to move away, as they might not be able to get a job when they leave. In 2004, there was a tsunami in the Indian Ocean.A tsunami is a large wave that towers hundreds of feet into the air, and covers whole areas when it comes crashing down on to dry land.
26、 This particular tsunami was causedby an earthquake that happenedin the middle of the sea, shooting the water away from the ground and towards dry land. This tsunami actually reachedthirty meters in height, and was one of the worst tidal waves the world has ever seen. Over 200,000 people were hurt i
27、n the disaster. In 2005, we also saw a hurricane happenedin the United States.This hurricane was known as hurricane Katrina, and is perhaps the worst in the history of the world. It happenedin 2005 and destroyed millions of properties in the area.It also took the lives of nearly 2,000 American peopl
28、e. It was known that for ten days, the wind swept through the area,meaning the most powerful country in the world became helpless in their attempts to save the people who were affected by the hurricane. Finally, in 2008 we saw yet another natural disaster. This time it was a -精品文档 ! 值得拥有！ - -珍贵文档 !
29、值得收藏！ - cyclone(旋风), which is similar to a hurricane but happensin a circular motion(圆 周运动 ). This cyclone Nargis had been one of the strongest to have ever occurred, reaching a death toll of nearly 150,000 people. All of these were terrible disasters that were unavoidable. Title: Forces of Nature (
30、8) Destructive forces of nature refer to natural disasters like tsunamis and earthquakes. Consequences When theseterrible disastersoccur in somepartsof the world, they (9)properties and lives. People in theseparts go through the (10)that only exists in our imagination. Some people out there have to
31、(11)where they are. They cannot afford to move away, as jobs in other placesmight not be (12). Examples The 2004 tsunami reached a (13)of thirty meters and it was one of the worst tidal waves in the world. The 2005 (14)known asKatrina swept throughparts of the US, causing great loss. Even the most p
32、owerful country could do (15)to save its people. The 2008 cyclone called Nargis had beenone of the strongest, leaving nearly 150,000 people (16). Summary These terrible disasters couldn tbe (17). -精品文档 ! 值得拥有！ - -珍贵文档 ! 值得收藏！ - 三、 书面表达 请仔细观看右边漫画 ,结合自己的实际生活 ,写一篇关于 “ 节能环保 ” 的短文 ,词 数150左右。 要求:1. 简要描述图中的现象 ; 2. 分析产生这种现象的原因 (如:没有良好的习惯等 ); 3. 提出你的建议。 提示:图中在睡觉的是小明 ,妇女是小明的母亲。