问题 单项选择题

Proper arrangement of classroom space is important to encouraging interaction. Most of us have noticed how important physical setting is to efficiency and comfort in our work. College classroom space should be designed to encourage the activity of critical thinking. We may be approaching the twenty-first century, but step into almost any college classroom and you step back in time at least a hundred years. Desks are normally in straight rows, so students can clearly see the teacher but not all their classmates. The assumption behind such an arrangement is obvious. Everything of importance comes from the teacher.
With a little imagination and effort, unless desks are fixed to the floor, the teacher can correct this situation and create space that encourages interchange among students. In small or standard-size classes, chairs, desks, and tables can be arranged in a variety of ways. The primary goal should be for everyone to be able to see everyone else. Larger classes, particularly those held in lecture halls, unfortunately, allow much less flexibility.
Arrangement of the classroom should also make it easy to divide students into small groups for discussion or problem-solving exercises. Small classes with movable desks and tables present no problem. Even in large lecture halls, it is possible for students to turn around and form groups of four to six. Breaking a class into small groups provides more opportunities for students to interact with each other, think out loud, and see how other students’ thinking processes operate all essential elements in developing new modes of critical thinking. In courses that regularly use a small group format, students might be asked to stay in the same small groups throughout the course. A colleague of mine, John, allows students to move around during the first two weeks, until they find a group they are comfortable with. John then asks them to stay in the same seat, with the same group, from that time on. This not only creates a comfortable setting for interaction but helps him learn students’ names and faces.

The greatest advantage in allowing each student to find his own group might be that ______.

A. the teacher saves the trouble in doing that
B. learning is made comfortable in this way
C. the teacher can easily remember students’ names and faces
D. brighter students can help slower ones

答案

参考答案:B

解析:本题是细节题。文中最后一段末句提到This not only creates...names and faces.。全文都在讲如何通过布置教室空间促进学生交流,最后一段提到让学生自己找一个组参与交流,其主要的益处(greatest advantage)是:让他感到自由自在,可以充分发表自己的看法,积极参与讨论。这与整个课堂的改革是相一致的,所以B选项是正确答案,“这种方式使学习变得舒适”。C选项不对,它所表达的内容当然也是这一做法的好处之一,但不是主要的目的。A、D选项文中没有提到。

单项选择题
阅读理解

Scientists have long puzzled over how iguanas, a group of lizards(蜥蜴) mostly found in the Americas, came to live in the isolated Pacific islands of Fiji and Tonga. Some scientists used to suppose that they must have traveled there on a raft, a journey of around 5,000 miles from South America to the islands. There are documented cases of iguanas reaching remote Caribbean islands and the Galapagos Islands on floating logs. But new research in January by Brice Noonan and Jack Sites suggested that iguanas may have simply walked to Fiji and Tonga when the islands were still a part of an ancient southern supercontinent.

The ancient supercontinent was made up of present-day Africa, Australia, Antarctica and parts of Asia. If that’s the case, the island species would need to be very old. Using “molecular (分子) clock” analysis of living iguanas’ DNA, Noonan and Sites found that, sure enough, the lineage of iguanas has been around for more than 60 million years—easily old enough to have been in the area when the islands were still connected by land bridges to Asia or Australia.

Fossils (化石) uncovered in Mongolia suggest that iguanid ancestors did once live in Asia. Though there’s currently no fossil evidence of iguanas in Australia, that doesn’t necessarily mean they were never there. “The fossil record of this continent is surprisingly poor and cannot be taken as evidence of true absence,” the authors write.

So if the iguanas simply walked to Fiji and Tonga from Asia or possibly Australia, why are they not also found on the rest of the Pacific islands? Noonan and Sites say fossil evidence suggests that iguana species did once inhabit other islands, but went extinct right around the time when humans settled in those islands. But Fiji and Tonga have a much shorter history of human presence, which may have helped the iguanas living there to escape extinction.

The researchers say that their study can’t completely rule out the rafting theory, but it does make the land bridge theory “far more reasonable than previously thought.”

小题1: What did some scientists previously believe about the iguanas?

A.They were once discovered in America.

B.They traveled by raft to Fiji and Tonga.

C.They could survive in poor living conditions.

D.They moved to Fiji and Tonga from Australia.小题2:According to Noonan and Sites, 60 million years ago ____.   

A.the land of the world was a supercontinent

B.Fiji and Tonga were connected to Asia or Australia

C.Africa, Australia and America were a continent

D.iguanas walked to Fiji and Tonga from Africa小题3:The underline word “lineage” in Paragraph 2 probably refers to ____.

A.conditions in which creatures can survive

B.the change in ancient plants and animals.

C.the line of generations of an ancestor

D.the habitat of a type of an ancient animal小题4: What is the main topic of this passage?   

A.The life span of animals living on the ancient supercontinent.

B.The two islands being home to several iguana species in the Pacific region.

C.The fossil evidence suggesting iguanas’ ancestors’ swimming to Fiji and Tonga

D.By raft or by land — how did iguanas reach the tiny Pacific islands?