The weather in Beijing is much ________ than in Guangzhou in winter.

A．coldB．colder

C．coldestD．the coldest

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Jim, would you please show your new pencil-box?

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Have you ever wondered how and why a fall leaf changes color? We first have to understand what leaves are and what they do.

Leaves are the world’s food factories. Plants take water from the ground and take CO2 from the air. Plants use sunlight to turn water and CO2 into glucose(葡萄糖). Glucose is a kind is a kind of sugar. Using it as food, plants get energy and grow. Plants using sunlight to turn water and CO2 into sugar is called photosynthesis(光合作用). ChlorophyII helps photosynthesis. It gives plants their green color.

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A．summer

B．a(chǎn)utumn

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A．

B．

C．

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C．Different kinds of leaves.

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You don’t think you have a great friend? Don’t worry. Maybe you can find one here. We have over300,000 members in more than 192 countries.

International Pen Friends (IPF) started in Ireland in 1967. Our IPF head Julie Delbridge is from Australia. We welcome everyone who is no younger than 8. You can write to your pen friends in English, French, German, Greek, Russian, Spanish and Portuguese. IPE members include people such as singers, clerks, students, teachers, waiters, writers, and more.

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1.When and where did IPF start?

2.Which country is the IPF head from?

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4.How old may be the youngest member of IPF?

5.What’s the passage about?

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