高三英语必修7二单元教案

55. What is the main purpose of the passage?

A. To show us the hidden beauty in our world.

B. To warn us not to get lost in the fantasy world.

C. To argue against the misuse of the sense of wonder.

D. To discuss the influence of the world of make-believe.

四：任务型阅读(共10小题;每小题1分，满分10分)

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。

For more than twenty years scientists have been seeking to understand the mystery of the‘‘sixth sense"of direction.By trying out ideas and solving problems one by one，they are now getting closer to one answer.

One funny idea is that animals might have a built-in compass(指南针).

Our earth itself is a big magnet(磁体).So a little magnetic needle that swings freely lines itself with the big earth magnet to point north and south.When people discovered that idea about athousand years ago and invented the compass，it allowed sailors to navigate (航海)on oceanvoyages, even under cloudy skies.

Actuallly the idea of the living compass came just from observing animals in nature.

Many birds migrate twice a year between their summer homes and winter homes.Some of them fly for thousands of kilometers and mostly at night.Experiments have shown that some birds can recognize star patterns.But they can keep on course even under cloudy skies.How can they do that?

A common bird that does not migrate but is great at finding its way home is the homing pigeon.Not all pigeons can find their way home.Those that can are very good at it，and they have been widely studied.One interesting experiment was to attach little magnets to the birds’ heads to block their magnetic sense—just as a loud radio can keep you from hearing a call to dinner.On sunny days, that did not fool the pigeons.Evidently they can use the sun to tell which way they are going.But on cloudy days，the pigeons with magnets could not find their way.It was as if the magnets had blocked their magnetic sense.

Similar experiments with the same kind of results were done with honeybees.These insects also seem to have a special sense ot direction.

In spite of the experiments，the idea of an animal compass seemed pretty extraordinary.How would an animal get the magnetic stuff for a compass?

An answer came from an unexpected source.A scientist was studying bacteria that live in the mud of ponds and marshes.He found accidentally little rod-like bacteria that all swam together in one direction—north.

Further study showed that each little bacterium had a chain of dense particles inside，which proved magnetic.The bacteria had made themselves into little magnets that could line up with the earth’s magnet.

The big news was that a living thing，even a simple bacterium，can make magnetite.That led to a search to see whether animals might have it.. By using a special instrument called magnetometer，scientists were able to find magnetite in bees and birds，and even in fish.In each animal，except for the bee.the magnetic stuff was always in or closer to the brain.

Thus.the idea of a built—in animal compass began to seem reasonable.

The Magnetic Sense — The Living Compass

Passage outline Supporting details

The existence of the earth magnet and the invention of the navigating compass ◇Our earth is a big magnet and a little freely (56) ▲ magnetic needle lines itself with the earth magnet to point north and south.

◇(57) ▲ on the idea above, the navigating compass was invented.

The possibility of birds’ built-in compasses ◇ One piece of evidence is the (58) ▲ of many birds between their summer homes and winter homes.

◇ Birds can recognize star patterns on clear nights and keep on course (59) ▲ under cloudy skies

The (60) ▲ on pigeons’ and bees’ built-in compasses

◇Little magnets were tied to the pigeons’ heads to (61) ▲ their magnetic sense.

◇The pigeons’ magnetic sense seemed to be affected on (62) ▲ days.

◇Similar things with the same results were done with bees.

The (63) ▲ of the magnetic stuff for the animal compass ◇Little rod-like bacteria were found by chance to swim together in the direction of (64) ▲ .

◇Some animals had a chain of dense magnetic particles in or close to the (65) ▲ inside their bodies.

五.书面表达(满分25分)

假设你是李华，你的美国笔友Peter曾表示希望来中国教书。你校现需招聘外教，请给他写封信，告知招聘信息。内容主要包括：

1. 教授课程：英语口语、英语写作、今日美国、今日英国等

2. 授课对象：高中生(至少三年英语基础)

3. 工作量：

——每周12学时，任先三门课

——担任学生英语俱乐部或英语校报顾问(advisor)

注意：词数100左右;

a) 可以适当增加细节，以使行文连贯;

b) 开关语已为你写好，请将完整的回信书写在答题卡上。

Dear Peter,

I remember you told me you were interested in teaching in China.

Best,

Li Hua

参考答案

一.1-5 DDCBD 6-10 DDCAB 11-15 ACBAC

二.DCABD BACBC DBADC DDACD

三.36-40 BACDC 41-50 CCBBD DAACC 51-55 ADBAB

四.56.swinging 57.Based 58 migration 59 .even 60. experiments/tests/study/research 61. block 62.cloudy 63discovery 64.north 65.brain(s)

五.One possible version

Dear Peter,

I remember you told me you were interested in teaching in China. Our school now is looking for a native-speaker to teach some courses to senior high students. If you come, you can choose three of the following four courses: Speaking, Writing ,Britain Today and America Today, and teach 12 hours a week. The students who are going to take these courses have at least three years of English learning experiences. Besides teaching, you will also work as an advisor to our students’ English club or our school’s English newspaper.

Please let me know if you are interested and if you have any other questions. I’d be more than happy to help.

Best,

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