We will offer you a 20 percent discount if you are among the first fifteen customers of the day（）A. 如果你是当天15位中首次来购物的顾客，我们就能给你打2折。B. 如果你是今天首次来本店购物的第15位顾客，我们能让利20%。C. 如果你是今日首批来订货的第15位客户，我们将给你80%回扣。D. 如果你是当天来本店购物的前15位顾客，我们将会给你打8折。

The man had better __________ enough evidence to prove his innocence.A. provideB. providingC. to provideD. provided

Section B. Multiple choice. (2%*10=20%)Directions:There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C, and D. You should decide on the best choice.Passage OnePOLAR bears have patrolled the planet’s icy regions for millions of years longer than previously thought--riding outseveral episodes of global warming in that time. While this suggests their future might not be so bleak, it is no guarantee they will survive the melting occurring in the polar regions today.Charlotte Lindqvist of the University at Buffalo, New York, and an international team of researchers have just completed the most comprehensive analysis yet of the polar bear genome (基因组). The team looked at DNA from 23 living polar bears and a 110,000-year-old polar bear jawbone. Aided by comparisons with the genomes of brown and black bears, they found that polar bears first emerged as a separate species between four and five million years ago. Previous studies had suggested the species didn’t diverge (分化) from brown bears until much later-- perhaps just 600,000 years ago.The analysis also showed that polar and brown bears have sometimes interbred (杂交) since their initial divergence, and that populations of polar bears have been changing over the past million years in accordance with the climate. Polar bear numbers dropped during warm periods but bounced back with prolonged ice ages – most noticeably during a period of cooling between 800,000 and 600,000 years ago. The population looks set to fall again as melting pack ice forces polar bears back to the land-based habitats (栖息地) of brown bears, where interbreeding has recently been observed. Should extensive interbreeding occur, both polar and brown bear populations could decline with the emergence of a new hybrid (杂交的) species.Lindqvist says that the analysis reveals that polar bear DNA has lost diversity as population has decreased, drifted apart and become genetically isolated, suggesting today’s bears have less adaptability to the environmental change, habitat loss, pollution and diseases they now face.Earlier this year, Frank Hailer of the Biodiversity and Climate Research Centre in Frankfurt, Germany, and colleagues estimated that polar bears diverged from brown bears 600,000 years ago--a result that itself pushed back the evolutionary record of polar bears by about 450,000 years. However, Hailer says that the new results broadly are consistent with his team’s findings, which also suggested that polar bears may have evolved much earlier than the 600,000 year mark.(1) (单选题)What is the closest meaning of the phrase “riding out” (Para.1)?A.Skyrocketing.B.Seesawing.C.Surviving.D.Substituting.(2) (单选题)What was found in the research of polar bear genome according to the passage?A.Polar bears appeared as a separate species much earlier than we had thought.B.The DNA of living polar bears is very similar to that of a 110,000-year-old polar bear.C.Polar bears have survived the icy ages and will also survive the melting today.D.Polar bears diverged from brown bears perhaps just 600,000 years ago.(3) (单选题)When would populations of polar bears drop over the past million years according to the passage?A.When the climate became colder.B.After the initial divergence between polar and brown bears.C.During a period between 800,000 and 600,000 years ago.D.When polar bears were forced back to the land-based habitats.(4) (单选题)Why are the polar bears today less able to adapt themselves to the environment according to the passage?A.Because polar bears are isolated and cannot find new habitats.B.ecause polar bears are facing more difficulties nowadays.C.Because the DNA of polar bears has lost diversity.D.Because the interbreeding with brown bears has produced a new hybrid species.(5) (单选题)What can be inferred from this passage?A.Brown bear populations may increase, while polar bear populations decline.B.We are not sure that polar bears will survive the melting of polar regions.C.A new hybrid species of polar bears will have more adaptability to the environmental changes.D.The polar bear populations would increase when they began to interbreed with brown bears.

根据以下通知内容完成以下要素的填空 Protect Our Mother River Would you like to join a volunteer group and engage in conserving the environment and enhancing biodiversity of the Yellow River? We have a volunteer project for you this summer vacation.Students interested in environmental protection are welcome . This is a great opportunity to learn about natural resources conservation ! Student Union 2 July From 1 . _ To 2._What to do ：engage in conserving the environment and enhancing biodiversity of the Yellow River

In the _______of your “Going Amish” presentation, you say that you had friends over and realized what was going on. （开端）

Vending machines (自动售货机) stocked with unhealthy snacks in leisure centres run the risk of fuelling children's being overweight, warn experts. Crisps and chocolate are on sale where children exercise despite being banned from schools and children's TV, the British Heart Foundation found (BHF). And children's meals on offer at the 35 places spot-checked were dominated by chips, sausages and burgers. The charity wants stricter regulation over the food choices available. The report, which was prepared by the Food Commission, looked at leisure centres, bowling buildings, ice skating areas and park cafes. The average calorie (卡路里) content of vending machine snacks was 203 calories, which would take a seven-year-old 88 minutes of swimming to use up. Fresh fruit was displayed at less than half of the places visited, and nutritional (营养的) information was displayed at just two of the places visited. The BHF said this severely limits the children's and parents' ability to assess the nutritional values of the products they are buying. The charity is now calling for public and private sector providers to lead the way in ensuring healthy food options are available and easily identifiable. It says it should be made a requirement that vending machines in publicly owned facilities are stocked with healthier products. A Department of Health spokeswoman said, "We are fully committed to encouraging the adoption of healthy vending machines across the country and expect local authorities to make sure there are healthy food options available in their leisure centres." Dessert, crisps and sugary drinks with bubbles of gas have been banned from all school vending machines in England since September 2007. Judy Hargadon, chief executive of the School Food Trust, said, "Convenience doesn't have to mean unhealthy." Many schools are using vending to offer pupils extra choice and independence whilst still keeping their options well-balanced and consistent.1. What is this passage mainly about?A) Improving facilities in leisure centres.B) Assessing the value of the annual program.C) Reducing the risk of being overweight. D) Banning all school vending machines.2. What caused the ignorance of well-balanced food mentioned by BHF?A) Lack of publications.B) Lack of exercise.C) Limited display of healthy food. D) The business of dessert making and selling.3. What did the charity call for?A) It called for more varieties of food.B) It called for healthier foods to be introduced. C) It called for prohibition of food high in sweet.D) It called for expanding of vending machines across the state.4. Which snack is allowed to sell in schools of England?A) Sprite.B) Coke Cola.C) Cereals Bar. D) Candy.5. What did Judy Hargadon think of vending machines?A) They are convenient but unhealthy.B) Vending machines should be used in schools to offer more choices.C) Vending machines might be convenient and healthy under control. D) To some point, it can help students to become independent.

Despite the previous rounds of talks，no agreement ________ so far by the two sides．（ ）A. has been reachedB. was reachedC. will reachD. will have reached

Not only Tom but also his parents _____ fond of watching football matches.A. isB. areC. wasD. were

49)Why are governments becoming increasingly dependent on biologists and social scientists OA. Because they need to handle social stresses and problems.B. Because they want to learn from early industrialized countries.C. Because they have to make modern means of transport relatively easy.D. Because they need them for the industrialization of their own countries.

Part 3 Reading Comprehension (40 points)Task 1 Read the following passage. Choose the best answer.The anti-plastic partnershipPlastic pollution is one of the most serious environmental problems of our times. It is said that about 8 million pieces of plastic are thrown into our oceans every day: endangering marine animals, spoiling beautiful beaches and, worst of all, ending up in the food chain.Thankfully, awareness of this issue is spreading, and many people are determined to do something about it. Many countries have now introduced a “bag tax”, meaning that shoppers have to pay to use a plastic bag. Local businesses (such as cafes) have been asked to stop using plastic cutlery and putting plastic straws in drinks. Many people have started to use everyday items made out of other materials instead of plastic. For example, bamboo toothbrushes are becoming popular. And finally, community groups in towns and cities all over the world are getting together and finding out how they can beat the problem of plastic pollution.One such group is the “Anti-Plastic Partnership” in Appleton, Wisconsin in the USA. The group meets once a week to make cloth shopping bags and to discuss ways in which they can put an end to plastic pollution. The group's founder, Ella Muster says, “Plastic pollution isn't going to go away. It's time for communities to take action, working together for this important cause.”The group meets every weekend, and currently has around 50 members. Ella says, “The local community has been very supportive of what we're trying to do. Our ultimate goal is to make Appleton a plastic-free city.”(1) (单选题)1. According to the writer, what is the most serious problem connected with plastic pollution?A.It’s dangerous for animals which live in the sea.B.Plastic gets into the food we eat. C.It destroys beautiful beaches. D.It causes global warming. (2) (单选题)2. What is a “bag tax”? It _________________.A.means you have to pay more tax if you have a bigger bagB.means you have to pay if you don’t use a plastic bagC.means you have to pay if you use a plastic bagD.is a small fee which every working person pays once a year(3) (单选题)3. What kind of toothbrushes are becoming more popular? A.Bamboo ones. B.Recycled plastic ones. C.Electric ones.D.New plastic ones. (4) (单选题)4. In Ella’s opinion, what needs to be done about plastic pollution? People should ________________________________________.A.wait for local governments to actB.write to local businessesC.start to take action within their communitiesD.give up, as the problem won’t go away by itself(5) (单选题)5. What is the Anti-Plastic Partnership’s goal? They want to ________________________.A.make sure that more people know about plastic pollutionB.become well-known around the worldC.start a business selling recycled bagsD.make their town plastic free