题目内容

【题目】根据句意及汉语提示完成句子

1她喜欢每件东西都各就各位。

She likes to have everything ____ ____.

2我想知道二十年后生活会是什么样。

I ____ ____ life will be ____ in twenty years.

3他给了我一个装满水的瓶子。

He gave me a bottle ____ ____ water.

4露西捡起了那个蓝色的信封,把它翻过来看。

Lucy picked up the blue envelope and ____ it ____ to see.

5打开后盖,然后轻轻地按下。

Open the back cover and ____ it ____ softly.

【答案】

1in place

2wonder what like

3full /filled of/with

4turned over

5push down

【解析】

1“各就各位”即“让一切事情在合适的位置”。故答案为inplace

2本句考查宾语从句。想知道:wonder。“生活会是什么样”作为wonder的宾语从句应用陈述语序。连接词是whatbe like 意为“像……”。故答案为wonderwhatlike

3根据汉意,应填“装满”。be full of = be filled with 意为“充满;装满……”。此处是非谓语作后置定语修饰bottle。故答案为full of或是filled with

4根据汉意,应填“翻过来”,即turn overand连接并列的形式,根据picked可知是一般过去时态。故答案为turned over

5根据汉意,应填“按下”,即push down。此句是祈使句,动词原形开头。故答案为push down

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【题目】 Young sunflowers turn and swing every day. New findings add to evidence that the plants are animal-like.

Harmer, a professor in the University of California at Davis, Department of Plant Biology, carried out a series of experiments on sunflowers in the field, in pots outdoors and in indoor growth chambers.

By staking plants so that they could not move, Harmer showed that he could destroy their ability to track the sun. He also noticed that sunflowers prevented from moving were not as tough and leafy as those that were free to move. When plants were moved indoor with a settled overhead light, they continued to swing back and forth for a few days.

The indoor plants did start tracking the “sun” again when the apparent source of lighting was moved across the room. The plants could reliably tack the movement and return at night when the artificial day was close to a 24-hour cycle, but not when it was closer to 30 hours.

When sunflowers track the sun, the east sides of their stems grew more rapidly than the west sides. At night, the west sides grew faster as the stem swung the other way. The team identified a number of genes that were expressed at higher levels on the sunward side of the plant during the day or on the other side at night. A plant growth-regulating hormone (激素), called auxin, appears to be a key driver.

The “dance” to the sun cycle obviously slows when the sunflower matures (成熟) and its flowers open up. At that point, the plants stop moving during the day and settle down facing the sun in the east.

“Bees like warm flowers.” Harmer said, adding that the bees are cold-blooded, so landing on a warm flower saves them energy and perhaps feels really good.

“The morning warmth changes the flowers in a way to make them more appealing to insects, perhaps causing them to release more attractive scents earlier in the day.” he said “We’re currently testing this idea.”

1Why did Harmer do the experiment on sunflowers?

A.To see how sunflowers grow upB.To show what sunflowers’ genes are.

C.To study why sunflowers track the sun.D.To check if sunflowers swing in cloudy days.

2What does the underlined word “staking” probably mean in Paragraph 3?

A.breakingB.controllingC.growingD.searching

3What is the result of sunflowers being stopped from moving?

A.They will produce a number of new genes.B.They will grow faster than usual.

C.They won’t swing back though set free.D.They won’t grow well.

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