江苏省南通市、扬州市、泰州市20xx届高三第三次调研测试英语试题word版含答案

江苏省南通市、扬州市、泰州市20xx届高三第三次调研测试英语试题word版含答案内容摘要：

d skill B. get your permit prepared before you start to climb C. hire local guides to help you to train for climbing D. choose Darwin glacier to ski on as an intermediate skier B A report released this month found that grouping children by ability is on the rise again—teaching students in groups of similar ability has improved achievement for fast and slow learners alike— and who wouldn39。 t want bright kids to be able to move ahead, or strugglers to get the help they need? But for most kids, labels(标签 ) applied early in life tend to stick, even if they are wrong. Sorting school children by ability has long been controversial. In some countries, especially in Asia, school－ wide tracking(分流 ) remains normal. Children are tested and placed in different schools that direct them toward professional or vocational careers. Movement between the tracks is rare. School－ wide tracking decreased in U． S. schools in the 1960s and 1970s. It never died out, though. Sorting students into separate tracks for math at about junior high school age continues to be mon, and other forms of tracking persist as well. Unlike tracking, which means sorting students into separate classrooms, ability grouping happens within classrooms. When done according to the latest research, it has proven to promote achievement. Ability grouping is changeable and temporary. Within classrooms, students might be divided into different learning groups dealing with materials of different levels. Any students who master concepts can move upward between groups, and the student groups might look different from subject to subject and unit to unit. For instance, a student who stands out in language arts might be at an average or slower level in math. A student who flies through multiplication tables might need extra help with fractions. Students who lag in reading can be pulled out of the classroom in small groups for practice with a tutor until their reading improves. Research shows ability grouping within classes has more positive benefits than tracking. However, that must be weighed against the challenges involved. In many regular classrooms, the differences between student ability levels are very big. That presents challenges for teachers and low－ performing students to constantly pare themselves with students who seem to fly through school with ease. The rigid ability groups and tracking of the past are still with us in many schools. Likely, labels are applied with more caution than in the bad old days when some teachers gave reading groups not－ so－ secret code names like “Bluebirds” “Robins” “Crows” and “Buzzards”. But kids still know. ( )58. Why is grouping children by ability being popular again? A. Because most teachers do not like slower learners. B. Because grouping children should be done early in life. C. Because it is academically beneficial to different learners. D. Because fast learners can move ahead without teachers39。 help. ( )59. By saying “Movement between the tracks is rare.”in Paragraph 3, the writer really means ________． A. tracking children is normal in Asia B. school－ wide tracking has decreased in US C. professional and vocational careers are unrelated D. sorted students can hardly change schools ( )60. The examples in Paragraph 6 are used mainly to illustrate ________． A. a good language learner promises to be good at maths B. a student might join different groups for different courses C. ability grouping benefits gifted students more than slow ones D. ability grouping presents no challenge for those slow students ( )61. What might be the challenge in regular classrooms for teachers? A. Students39。 different levels. B. Students39。 low performance. C. Constant self－ parison. D. Application of not－ so－ secret code. C Microsoft just finished a three－ month experiment operating an underwater data center. A server rack(服务器支架 ) with the power of about 300 PCs was placed into a water－ tight(防水 ) steel container and lowered into the ocean off the coast of central California. The unusual experiment was launched because current data centers are unpleasantly inefficient. They39。 re built where energy and land are cheap (not close to where people actually live). And they waste so much energy cooling their massive puters. The ocean can solve those problems. The cold ocean floor sufficiently cools the puting ponents inside the pod. And since most people live near the ocean, placing data centers under water could potentially increase the speed at which customers could access the information stored in Microsoft39。 s cloud. The experiment was so successful that Microsoft operated the underwater data center for 75 days longer than it had planned to. The next step is to get a larger pod, with about four times the puting power, under the ocean for testing. Unlike the first experiment, the next pod will also be equipped with turbines, which will transform the ocean39。 s currents into electricity. It39。 s not clear when, if ever, underwater data centers will bee a possible product. “ Our first experiment was like dipping our pinkie toe in the water, and now we39。 re going for the big toe， ” said Lee, corporate vice president of Microsoft Research. Microsoft is still analyzing the environmental impacts of the study. Data centers are both hot and loud, which could have damaging effects on ocean life. Microsoft found that the noise its underwater data center produced was drowned out by nearby shrimp and crabs. The data centers are also built from recyclable materials, and Microsoft believes that the total carbon footprint of underwater data centers will be “ dramatically lower” than current land－ based centers. Given the growth in the cloud, industry analysts believe that most of the world39。 s data centers have yet to be built. But building a data center takes at least two years— an eternity。