The baby is just one day old and has not left hospital yet. She is quiet but alert(警觉的). The researchers have placed a white card with two black spots on it twenty centimeters from her face. She stares at it carefully.
A researcher removes the card and replaces it by another one, this time with the spots differently spaced. As the cards change from one to the other, her gaze（凝视） starts to lose its focus until a third card is presented. The third card has three black spots on it. Her gaze comes back: she looks at it for twice as long as she did at the precious card. Can she tell that the number two is different from three, just 24 hours after coming into the world? Or do newborns simply prefer more to fewer? The same experiment, but with three spots shown before two, shows the same return of interest when the number of spots changes. Perhaps it is just the newness? When a little older babies were shown cards with pictures of objects (a comb, a key, an orange and so on), changing the number of objects had an effect separate from changing the objects themselves. Could it be the pattern that two things make, as opposed to three? No again. Babies paid more attention to squares moving randomly on a screen when their number changed from two to three, or three to two. The effect even crosses between senses. Babies who were repeatedly shown two spots became more excited when they then heard three beats of the drum than when they heard just two; similarly, when the researchers started beats of the drum and moved to spots.
1.What's the experiment described in Paragraph 1 mainly about?
A.The baby's sense of sight. B.The baby's sense of touch.
C.The baby's sense of smell. D.The baby's sense of hearing
2.Babies are alert to the change in . '
A.the size of cards B.the color of pictures
C.the shape of patterns D.the number of objects
3.Why did the researchers test the babies with beats of the drum?
A.Because they wanted to keep the babies' interests.
B.Because they wanted to carry the experiment further.
C.Because they wanted to see how babies recognize sounds.
D.Because they wanted to reduce the difficulty of the experiment.
4.Where does this passage probably come from?
A.Children's literature. B.An advertisement.
C.Science fiction. D.A science report.
九年级英语阅读单选中等难度题
The baby is just one day old and has not left hospital yet. She is quiet but alert（警觉）. The researchers have placed a white card with two black spots on it twenty centimeters from her face. She stares at it carefully.
A researcher removes the card and replaces it by another one, this time with the spots differently spaced. As the cards change from one to the other, her gaze（凝视）starts to lose its focus until a third card is presented. The third card has three black spots on it. Her gaze returns: she looks at it for twice as long as she did at the previous card. Can she tell that the number two is different from three, just 24 hours after coming into the world? Or do newborns simply prefer more to fewer?
The same experiment, but with three spots shown before two, shows the same return of interest when the number of spots changes. Perhaps it is just the newness? When a little older babies were shown cards with pictures of objects (a comb, a key, an orange and so on), changing the number of objects had an effect separate from changing the objects themselves. Could it be the pattern that two things make, as opposed to three? No again.
Babies paid more attention to squares moving randomly on a screen when their number changed from two to three, or three to two. The effect even crosses between senses. Babies who were repeatedly shown two spots became more excited when they then heard three drumbeats （鼓声）than when they heard just two; likewise（同样地）when the researchers started with drumbeats and moved to spots.
1.The experiment described in Paragraph 1 is mainly about the baby’s ______.
A. sense of hearing B. sense of sight C. sense of touch D. sense of smell
2.What does the underlined word it in paragraph 2 refer to?
A. the card B. the baby C. the comb D. the key
3.According to the passage, babies have a strong sense of changing in ______.
A. the size of cards B. the colour of pictures C. the shape of patterns
D. the number of objects
4.Why did the researchers test the babies with drumbeats?
A. To reduce the difficulty of the experiment.
B. To see how babies recognize sounds.
C. To carry their experiment further.
D. To keep the babies’ interest.
5.Where does this passage probably come from?
A. Science fiction. B. Children’s literature.
C. An advertisement. D. A science report
九年级英语阅读理解中等难度题查看答案及解析
The baby is just one day old and has not left hospital yet. She is quiet but alert(警觉的). The researchers have placed a white card with two black spots on it twenty centimeters from her face. She stares at it carefully.
A researcher removes the card and replaces it by another one, this time with the spots differently spaced. As the cards change from one to the other, her gaze（凝视） starts to lose its focus until a third card is presented. The third card has three black spots on it. Her gaze comes back: she looks at it for twice as long as she did at the precious card. Can she tell that the number two is different from three, just 24 hours after coming into the world? Or do newborns simply prefer more to fewer? The same experiment, but with three spots shown before two, shows the same return of interest when the number of spots changes. Perhaps it is just the newness? When a little older babies were shown cards with pictures of objects (a comb, a key, an orange and so on), changing the number of objects had an effect separate from changing the objects themselves. Could it be the pattern that two things make, as opposed to three? No again. Babies paid more attention to squares moving randomly on a screen when their number changed from two to three, or three to two. The effect even crosses between senses. Babies who were repeatedly shown two spots became more excited when they then heard three beats of the drum than when they heard just two; similarly, when the researchers started beats of the drum and moved to spots.
1.What's the experiment described in Paragraph 1 mainly about?
A.The baby's sense of sight. B.The baby's sense of touch.
C.The baby's sense of smell. D.The baby's sense of hearing
2.Babies are alert to the change in . '
A.the size of cards B.the color of pictures
C.the shape of patterns D.the number of objects
3.Why did the researchers test the babies with beats of the drum?
A.Because they wanted to keep the babies' interests.
B.Because they wanted to carry the experiment further.
C.Because they wanted to see how babies recognize sounds.
D.Because they wanted to reduce the difficulty of the experiment.
4.Where does this passage probably come from?
A.Children's literature. B.An advertisement.
C.Science fiction. D.A science report.
九年级英语阅读单选中等难度题查看答案及解析
Kate's father took her to the hospital to see her one-day-old baby brother They drove there straight from schoo1. Kate had never been inside a hospita1 before. 1._This was a new experience for her.
At the gate there was a large sign listing all the departments of lhe hospital, with arrows (箭头) showing how to find them. When Kate saw the A&E department(急救室), she asked,“What do those letters stand for?”“Accident and emergency,” replied her father,
2.“Last spring, I took our sister there because she fell off her bike,”
九年级英语其他题中等难度题查看答案及解析
An old man has a cat. The cat now is very old. She can’t run quickly, and she can’t bite 41 .One day the old cat saw a mouse, she jumped and 42 it. But she couldn’t bite it. So the mouse got out of her 43 and ran away. The old man got very 44 and beat the cat. The cat said to him. “Don’t beat your servant. Don’t be unkind to the 45 When they are young, they can do good work.”
1.A. too B. also C. either
2. A. catch B. caught C. catches
3. A. mouth B. eyes C. hands
4.A. sad B. satisfied C. angry
5.A. young B. old C. sick
九年级英语完型填空困难题查看答案及解析
-Has Donnie finished reading the novel?
-Not yet. There _______ still _______ of it left.
A. is; three-fifths B. are; three-fifth C. is; third-fifths D. are; three-fifths
九年级英语单选题中等难度题查看答案及解析
— Has Donnie finished reading the novel?
— Not yet. There ________ still ________ of it left.
A. is; three-fourths B. are; three-fourth C. is; third-fourths D. are; three-fourths
九年级英语单项填空中等难度题查看答案及解析
— Has Donnie finished reading the novel?
— Not yet. There ________ still ________ of it left.
A. is; three-fourths B. are; three-fourth C. is; third-fourths D. are; three-fourths
九年级英语单项填空简单题查看答案及解析
The old man ______ run and walk since he left hospital last month.
A. will be able to B. is able to
C. has been able to D. was able to
九年级英语单选题中等难度题查看答案及解析
--Has the meeting begun yet？
--Not yet． We have to wait everyone is here．
A. and B. until C. or D. but
九年级英语单选题中等难度题查看答案及解析
—Is Bohai Bridge open to the public yet?
—Yes. It ______ for almost one and a half months.
A．has opened B．has being opened
C．has been open D．was open
九年级英语单项填空中等难度题查看答案及解析