1、选修6 第四单元 综合练习ACalifornia Condors Shocking RecoveryCalifornia condors are North Americas largest birds, with wind-length of up to 3 meters. In the 1980s, electrical lines and lead poisoning(铅中毒) nearly drove them to dying out. Now, electric shock training and medical treatment are helping to rescue t
2、hese big birds.In the late 1980s, the last few condors were taken from the wild, and there are now more than 150 flying over California and nearby Arizona, Utah and Baja in Mexico.Electrical lines have been killing them off. “As they go in to rest for the night, they just dont see the power lines,”
3、says Bruce Rideout of San Diego Zoo. Their wings can bridge the gap between lines, resulting in electrocution(电死) if they touch two lines at once.So scientists have come up with a shocking idea. Tall poles, placed in large training areas, teach the birds to stay clear of electrical lines by giving t
4、hem a painful but undeadly electric shock. Before the training was introduced, 66% of set-freed condors died of electrocution. This has now dropped to 18%.Lead poisonous has proved more difficult to deal with. When condors eat dead bodies of other animals containing lead, they absorb large quantitie
5、s of lead. This affects their nervous systems and ability to produce baby birds, and can lead to kidney(肾) failures and death. So condors with high levels of lead are sent to Los Angeles Zoo, where they are treated with calcium EDTA, a chemical that removes lead from the blood over several days. Thi
6、s work is starting to pay off. The annual death rate for adult condors has dropped from 38% in 2000 to 5.4% in 2011. Rideouts team thinks that the California condors average survival time in the wild is now just under eight years. “Although these measures are not effective forever, they are vital fo
7、r now,” he says. “They are truly good birds that are worth every effort we put into recovering them.”1.California condors attract researchers interest because they _.A. are active at nightB. had to be bred in the wildC. are found on in CaliforniaD. almost died out in the 1980s2. Researchers have fou
8、nd electrical lines are_ .A. blocking condors journey home B. big killers of California condorsC. rest places for condors at nightD. used to keep condors away3.According to Paragraph 5 ,lead poisoning _ .A. makes condors too nervous to fly B. has little effect on condors kidneysC. can hardly be gott
9、en rid of form condors bloodD. makes it different for condors to produce baby birds4.The passage shows that _ .A. the average survival time of condors is satisfactory.B. Rideouts research interest lies in electric engineering.C. the efforts to protect condors have brought good results.D. researchers
10、 have found the final answers to the problem. B Food festivals around the worldStilton Cheese RollingMay Day is a traditional day for celebrations, but the 2,000 English villagers of Stilton must be the only people in the world who include these rolling in their annual plans. Teams of four, dressed
11、in a variety of strange and funny clothes , roll a complete cheese along a 50-metre course. On the way, they must not kick or throw their cheese, or go into their competitors lane. Competition is fierce and the chief prize is a complete Stilton cheese weighing about four kilos (disappointingly, but
12、understandably the cheeses used in the race are wooden ones). All the competitors arc served with beer or port wine, the traditional accompaniment for Stilton cheese.Fiery Foods FestivalThe Hottest Festival on EarthEvery year more than 10,000 people head for the city of Albuquerque, New Mexico. They
13、 come from as far away as Australia, the Caribbean and China, but they all share a common addictionfood that is not just spicy ,but hot enough to make your mouth burn, your head spin and your eyes water. Their destination is the Fiery Eood and BBQ Festival which is held over a period of three clays
14、every March. You might like to try a chocolate-covered habanero pepperofficially the hottest pepper in the worldor any one of the thousands of products that are on show. But one things for sureif you dont like the feeling of a burning tongue, this festival isnt for you!La TomatinaThe Worlds Biggest
15、Food FightOn the last Wednesday of every August, the Spanish town of Bunol hosts Ea Tomatinathe worlds largest food fight. A week-long celebration leads up to an exciting tomato battle as the highlight of the weeks events. The early morning sees the arrival of large trucks with tomatoesofficial figh
16、t-starters get things going by casting tomatoes at the crowd.The battle lasts little more than half an hour, in which time around 50,000 kilograms of tomatoes have been thrown at anyone or anything that moves, runs, or fights back. Then everyone heads down to the river to make friends againand for a
17、 much-needed wash!5. In the Stilton cheese rolling competition, competitors on each team must_ .A. wear various formal clothesB. roll a wooden cheese in their own laneC. kick or throw their cheeseD. use a real cheese weighing about four kilos6.Where is the Fiery Food and BBQ Festival held?A. In New
18、Mexico. B. In the Caribbean. C. In Australia. D. In China.7.The celebration of La Tomatina lasts_ .A. three days B. seven days C. less than three days D. more than seven days8.Which of the following is TRUE according to the passage?A. The chief prize for the Stilton cheese rolling competition is bee
19、r or port wine.B. More than 10,000 Chinese take pail in the Fiery Food and BBQ Festival.C. Thousands of spicy foods are on show in the Fiery Food and BBQ Festival.D. An exciting tomato battle takes place at the beginning of La Tomatina. COur warming planet is expected to face serious water crisis（危机
20、）in the coming decades which means each nations natural resource will be more important than ever.9.According to the statistics, what is the world average of freshwater resource per person? A244,973 cubic kilometersB241 cubic kilometersC3,642 cubic kilometersD6,122 cubic kilometers10.Which country o
21、r region has the most freshwater resource per year? AGuyanaBBrazilCIcelandDChina11.Which country or region appears twice on the top 5 lists? ABhutanBSeychellesCCanadaDSuriname D Since the first Earth Day in 1970, Americans have gotten a lot “greener” toward the environment . “We didnt know at that t
22、ime that there even was an environment, let alone that there was a problem with it, ”says Bruce Anderson, president of Earth Day USA. But what began as nothing important in public affairs has grown into a social movement . Business people, political leaders, university professors, and especially mil
23、lions of grass-roots Americans are taking part in the movement. “The understanding has increased many, many times, ”says Gaylord Nelson, the former governor from Wisconsin, who thought up the first Earth Day. According to US government reports , emissions (排放)from cars and trucks have dropped from 1
24、0. 3 million tons a year to 5. 5 tons . The number of cities producing CO beyond the standard has been reduced from 40 to 9 . Although serious problems still remain and need to be dealt with , the world is a safer and healthier place . A kind of “Green thinking ” has become part of practices . Great
25、 improvement has been achieved. In 1988 there were only 600 recycling programs ; today in 1995 there are about 6, 600 . Advanced lights, motors, and building designs have helped save a lot of energy and therefore prevented pollution . Twenty five years ago, there were hardly any education programs f
26、or environment . Today, its hard to find a public school, university , or law school that does not have such a kind of program . ” Until we do that, nothing else will change!” say Bruce Anderson . 12. According to Anderson, before 1970, Americans had little idea about _.A. the social movement B. rec
27、ycling techniquesC. environmental problemsD. the importance of Earth Day 13. Where does the support for environmental protection mainly come from?A .The grass roots level B. The business circle C. Government officialsD. University professors 14. What have Americans achieved in environmental protecti
28、on ? A. They have cut car emissions to the lowest B. They have settled their environmental problems C. They have lowered their CO levels in forty cities. D. They have reduced pollution through effective measures . 15.What is especially important for environmental protection according to the last par
29、agraph ?A .Education B. Planning C. Green living D. CO reduction 七选五The Science of Risk-SeekingSometimes We decide that a little unnecessary danger is worth it because when we weigh the risk and the reward, the risk seems worth taking. 16 Some of us enjoy activities that would surprise and scare the
30、 rest of us. Why? Experts say it may have to do with how our brains work.The reason why any of us take any risks at all might have to do with early humans. Risk-takers were better at hunting, fighting, or exploring. 17 As the quality of risk-taking was passed from on generation to the next, humans e
31、nded up with a sense of adventure and a tolerance for risk.So why arent we all jumping out of airplanes then? Well, even 200,000 years ago, too much risk-taking could get one Killed. A few daring survived, though, along with a few stay-in-the-cave types. As a result, humans developed a range of char
32、acter types that still exists today. So maybe you love car racing, or maybe you hate it. 18 No matter where you are on the risk-seeking range, scientists say that your willingness to take risks increases during your teenage years.19 To help you do that, your brain increases your hunger for new exper
33、iences. New experiences often mean taking some risks, so your brain raises your tolerance for risk as well.20 For the risk-seekers a part of the brain related to pleasure becomes active, while for the rest of us, a part of the brain related to fear becomes active.As experts continue to study the sci
34、ence of risk-seeking, well continue to hit the mountains, the waves or the shallow end of the pool. A. It all depends on your character.B. Those are the risks you should jump to take.C. Being better at those things meant a greater chance of survival.D. Thus, these well-equipped people survived becau
35、se they were the fittest.E. This is when you start to move away from your family and into the bigger world.F. However, we are not all using the same reference standard to weigh risks and rewards.G. New brain research suggests our brains work differently when we face a nervous situation.完型填空 “Daily S
36、tar, sir” called Jason, carrying some newspapers under his arm. The little boy had been running up and down the street, but there were still twenty 21 left. His voice was almost gone and his heart was 22 . The shops would soon close, and all the people would go home. He would have to go home too, ca
37、rrying the papers 23 money. He had hoped to sell more papers tonight to make more money to buy a 24 for his mother and some seeds for his bird. That was why he had bought the papers with all his money. He 25 as he thought of his failure to sell all his papers.“You dont know the 26 of selling papers.
38、 You must shout, “Hot news! Bomb bursting!” another newsboy Chad told Jason. “ 27 its not in the paper at all,” replied Jason. “Just run away quickly 28 they have time to see, and youll 29 out and get your money,” Chad said.It was a new 30 to Jason. He thought of his bird with no 31 and the cake he
39、wanted to buy for his mother, but was 32 that he would not tell a lie. Though he was 33 a poor newsboy, he had been 34 some good things.The next afternoon Jason went to the office for his papers 35 . Several boys were crowding around Chad, who declared with a 36 smile that he sold six dozen the day
40、before. He added that Jason 37 money because he would not tell a lie. The boy 38 at Jason. “You wouldnt tell a lie yesterday, my boy?” A gentleman at the office came up and patted Jasons shoulder 39 .”Youre just the boy I am looking for.” A week later Jason started his new 40 . He lost sale of twent
41、y papers because he would not tell a lie, but got a well-paid job because he told the truth.21.A.shops B. coins C. people D. papers22.A.open B. heavy C. pure D. weak23.A.instead of B. in return for C. regardless of D. in exchange for24.A.cup B. card C. comb D. cake25.A.gave in B. broke down C .got a
42、way D. showed up26.A.difficulty B. process C. goal D. secret27.A.And B. But C. For D .So28.A.before B. since C. though D. unless29.A.call B. drop C. sell D. reach30.A.edition B. idea C. policy D. task31.A.bread B. insects C. seeds D. water32.A.concerned B. amazed C. excited D. determined33.A.still B
43、. already C. just D. also34.A.taught B. handed C. awarded D. allowed35.A.at once B. by chance C. as usual D. on purpose36.A.proud B. gentle C. warm D. polite37.A.borrowed B. lost C. made D. saved38.A.laughed B. shouted C. nodded D. started39.A.bravely B. grateful C. fondly D. modestly40.A.duty B. bu
44、siness C. job D. method语法填空 Nowadays, the life of many people in the world 41 (affect) by global warming. For example, greenhouse gas has a bad effect 42 both people and environment. The earths surface temperature 43 (go) up by about 1 degrees centigrade in the past 100 years. As a matter of fact, w
45、e may feel that we can hardly put up with the extremely hot summer and we cant get accustomed to warm winter. The rise of the earths surface temperature has made much 44 (different) to human health, the existence of creatures 45 the balance of ecosystems. There is no doubt that it is human activitie
46、s that result 46 the bad environment. As a 47 (consequent), conditions permitting, all countries in the world should spare no efforts 48 (improve) our environment. Even if our effort is limited, it will 49 (eventual) make a great difference if we keep on 50 (work) together to deal with global warmin
47、g. Without all peoples joint efforts, what would our future be like?短文改错The summer holiday is coming. My classmates and I are talking about how to do during the holiday. We can chose between staying at home and take a trip. If we stay at home, it is comfortable but there is no need to spend money. But in that case, we will learn little about world. If we go on a trip abroad, we can broaden you view and gain knowledges we cannot get from books. Some classmates suggest we can go to places of interest nearby. I thought that it is a good idea. It does not cost many, yet we can still learn a lot.
