【題目】Helen encouraged me to speak English as much as possible because practice ___ perfect.
A. becomes B. became C. will make D. makes
科目:初中英語 來源: 題型:
【題目】
A Johns Hopkins University researcher, Melville J. Wohlgemuth, noticed that the hats he worked with turned their heads to the side when hunting. "It's a lovely behavior, and I was curious about the purpose, " he said. "I wanted to know when bats were doing this and why. It seemed to happen as hats were targeting prey(瞄準(zhǔn)獵物), and that turned out to he the case."
Wohigemuth's team found that a bat's head and ear movements went with the animal's sonar vocalizations(聲納發(fā)聲)to help it hunt. The findings show how movements can strengthen signals used by senses like sight and hearing-not just in bats, but in dogs and cats, and even in humans.
Bats' use of echo-location(回聲定位)to find, locate and catch prey is well documented. But the lead author Wohlgemuth and his team are the first to show how the mysterious head and ear movements influence the hunt.
The researchers used a novel method to study the head and ear movements of the big brown bat, a common bat species. First, researchers trained the bat to sit on a platform while tracking moving prey. After that, the researchers fixed markers to the top of the bat's head and both ears. The markers allowed the team to measure the head and ear positions as the bat tracked the prey moving in various directions.
They found the head movements took place when the prey changed direction or moved unpredictably. The ear movements happened as the prey grew closer, which helped the bat hear the echoes it used to track and catch the prey. Most notably, these head and ear movements went with the bat's vocalizations, allowing the animal to locate where the prey exactly was.
Co-author Cynthia F. Moss said other similar studies missed the importance of head and ear movements, because laboratories usually observed the subject with a fixed head position. That's not how animals operate in the real world, when their heads are free to move.
Moss compared the bat's head and ear movements to those of other species that use active sensing to process important information. "By studying these movements, " she said, "we as humans can get insight into how movements help animals sense their environment."
【1】The research of Wohlgemuth and his team is the first to prove that ___________ ·
A.head and ear movements help bats locate the prey
B.animals send signals to help them hunt more quickly
C.humans learn to hunt by copying animals' movements
D.sonar vocalizations can work for both animals and humans
【2】The fourth paragraph is mainly about ___________ .
A.how the bat uses head and ear movements to track moving prey
B.how the researchers studied the head and ear movements of the bat
C.how the bat is trained to track the prey by moving its head and ears
D.how the researchers measured the moving hat's head and ear positions
【3】Which is the best title for the passage?
A.Bats: A Master of Night HuntingB.Bats: A Model of Fast Movements
C.Bats: An Expert of Exact LocationD.Bats: An Example of Mysterious Animals
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【題目】—It’s Father’s Day today, ______?
—Yes, let’s buy a gift for Dad.
A.isn’t he B.doesn’t it C.isn’t it
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【題目】Write down the telephone number, ______ you’ll forget it.
A.or B.a(chǎn)nd C.so
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【題目】【湖南省婁底市2015年中考英語試題】—It’s reported that the Oriental Star Cruises (“東方之星”號游船)sank_______June 1st, 2015.
—I’m sorry to hear that.
A. on B. in C. at
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【題目】【廣東省2015年中考英語試題】Could you please give me a hand ? I can’t complete the task on time ______ your help.
A.without B.under C.with D.for
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【題目】【福建省福州市2015年中考英語試題】—Do you remember what she looked like when you first met her?
—Of course. She was tall and thin _____ long hair.
A. in B. with C. on
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【題目】書面表達(dá)
在家庭生活中,我們會做很多關(guān)于我們青少年的決定,比如該買什么新年衣服,該怎樣慶祝生日,該上哪所學(xué)校等。你認(rèn)為在我們自己的事情上應(yīng)該自己做決定。還是聽從家長的意見?針對這一話題,九年級七班的同學(xué)們展開了辯論。
假設(shè)你是正方或反方的一員,請圍繞你的觀點,結(jié)合自身的親身經(jīng)歷,說出至少三條理由來支持你的觀點。(只能選擇一方觀點表達(dá)。)
要求:
1.闡明自己的觀點。
2.詞數(shù)80詞左右。
3.不得出現(xiàn)真實的人名、校名和地名。
At home, I think
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【題目】A dog will love you and bring you fun for years.
A. lots of B. many C. a little D. a few
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