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听力原文：M: What is your biology project about？W: It is about microorganisms that microorg

听力原文：M: What is your biology project about？

W: It is about microorganisms that microorganisms that live by Chemosynthesis.

M: Ehm what's Chemosynthesis？

W: Well, it's pretty complicated. You know how most life on Earth depends either directly or indirectly on sunlight？

M: You mean like plants get energy directly from sunlight, and animals eat plants, so they depend indirectly on sunlight？

W: Right. But down on the ocean floor, there is no sunlight. In some places though, there are hydrothermal vents, which are small cracks on the sea floor. And these vents release heat and minerals from the inside of the Earth into the seawater. And all around the vents there are these unusual microorganisms. They are called archaea. And these archaea use chemical reactions to get their energy from the minerals, the minerals that are released by the vents. So their energy comes from chemical reactions, not sunlight.

M: So ehemosynthesis is getting energy from chemicals？

W: That is right.

M: That makes archaea very different from other forms of life.

W: And their genetic makeup is very different too. They are one sort of organisms just like bacteria are, but genetically they are as different from bacteria as we humans are.

M: Waa, that's a really interesting project.

What is the woman's project mainly about？

A．How hydrothermal vents are formed.

B．How living things get energy from sunlight.

C．The harmful effects of certain chemicals in the ocean.

D．Microorganisms that get energy from chemical reactions.

提问人：网友zouhao1985 发布时间：2022-01-07

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— Could I use your computer for a few moment,please？

— ________.I'm not using it myself.

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B. It depends

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第2题

According to the woman, where are the hydrothermal vents found？

A．In caves.

B．On the ocean floor.

C．Far below the Earth's crust.

D．Inside archaea.

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第3题

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A．140 dollars.

B．90 dollars.

C．180 dollars.

D．225 dollars.

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第4题

听力原文：M: Well, Cynthia, our first semester at university is almost over. I can't wait for the holidays.

W: Me, too, Edward! Why don't we go somewhere far away and forget about lectures and essays and all that hard work.

M: Sounds good to me. Now, how long will we have before we have to be back here on campus for the next semester？

W: We've got about six weeks, I think.

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A．A mountain resort.

B．A seaside resort.

C．A desert.

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第5题

"How long ______ in the sun？ You are working too hard!"

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B．did you sew

C．have you been sewing

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第6题

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B．expensive

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第7题

She uses her car ______ for shopping.

A．most

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第8题

Some people would say that the Englishman's home is no longer his castle; that it has become his workshop. This is partly because the average Englishman is keen on working with his hands and partly because he feels, for one reason or another, that he must do for himself many household jobs for which, some years ago, he would have hired professional help. The main reason for this is a financial one: the high cost of labor has meant that builders' and decorators' costs have reached a level which makes them so high that house-proud English people of modest means hang back. So, if they wish to keep their houses looking bright and smart, they have to deal with some of the repairs and decorating themselves. As a result, there has grown up in the post-war years what is sometimes referred to as the "Do-It-Yourself Movement".

The "Do-It-Yourself Movement" began with home decorating but has since spread into a much wider field. Nowadays there seem to be very few things that cannot be made by the "do-it-yourself" method. A number of magazines and handbooks exist to show hopeful handymen of all ages just how easy it is to build anything from a coffee table to a fifteen foot (4.5 meters) sailing boat. All you need, it seems, is a hammer and a few nails. You follow the simple instructions step-by-step and , before you know where you are, the finished article stands before you, complete in every detail.

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B．the Do-It-Yourself Movement

C．the future of the Do-It-Yourself Movement

D．the origin of the Do-It-Yourself Movement

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