2023年初中学生科普英语竞赛模拟题.doc

初中学生科普英语竞赛

（请把你选中旳答案A、B、C或D做在答题卡或答题纸旳规定位置上。）
PART I Science Knowledge (15分)
Directions: There is only one correct answer. Mark the corresponding letter on the Answer Sheet.
1. When the ants are first hatched, they are very small and _____.
A. hopeless B. useless C. helpless D. legless

2. That new experiment building _____ an area of 5000 square meters.
A. includes B. holds C. takes D. covers

3. People should get _____ of sleep as they need to feel rested.
A. as many hours B. as much hours
C. so much hour D. so many hour

4. The phenomenon of luck is not all down to chance, but is affected by a person’s _____disposition.
A. general B. gentle C. generous D. giant

5. The age of fossils can be found by a process _____ carbon dating.
A. being called B. called C. calling D. to call

6. Suddenly the battery on your mobile phone has _____, you can’t make any call for help. A. run down B. run after C. run off D. run out

7. When a plant or animal dies, the carbon 14 in the cells begins to _____.
A. break in B. break through C. break up D. break down

8. There is no proof that _____ sleep will _____ life.
A. short… length B. shorten… length
C. shortened … lengthen D. shortening … lengthen

9. The project team believes such computer would _____in teaching and learning.
A. play a major function B. perform a main function
C. play a major role D. display a main role

10. Once a heart disease has seriously weakened a patient’s heart, heart _____ can be performed to save his life.
A. transplants B. transportation
C. translations D. transforms

11. When readers were asked _____ animals should be used for medical research, nearly 80 percent said yes.
A. which B. what C. where D. whether

12. Feelings of pain _____ when signals from nerve endings in the skin are sent to the brain.
A. record B. resource C. result D. rescue

13. The scientist performed his experiment over and over again, ______ till midnight.
A. worked B. working C. to work D. have to work

14. Fourteen boys in the class shaved their heads after learning that their friend would lose his hair after receiving drug _____ for cancer.
A. trades B. treatments C. treasures D. tracks

15. The government passed the laws to protect the plants and animals on the _____ species list.
A. endangered B. dangerous C. endangering D. danger

PART II Grammar & Vocabulary (15分)
Directions: There is only one correct answer for each sentence. Mark the corresponding letter on the Answer Sheet.

16. More and more foreigners want to _______their companies in Zhejiang.
A. clean up B. look up C. pick up D. open up
17. Can I ______your dictionary? --Sony, I'm using it.
A. borrow B. lend C. keep D. return
18. _______ me carefully, boys and girls. Can you _____ me clearly.9
A. Listen to, hear from B. Hear, listen to
C. Hear, hear D. Listen to, hear
19. Let the children go away. They're making to much _______ here.
A. noise B. voice C. sounds D. songs
20. The students put down their pens when the teacher_____ them to stop writing.
A. said B. spoke C. told D. talked
21. He ________ living in the country to the city.
A. likes B. prefers C. enjoys D. loves
22. Many girls like __________ skirts in summer.
A. wearing B. dressing C. in D. putting on
23 If you don' t know a word, you can ________ the word in a dictionary.
A. look up B. look down C. look over D. look out
24 Mr Li would like to _________ us an interesting story.
A. tell B. talk C. say D. speak
25. _________ alway the old books and __________ me that new one.
A. Bring, bring B. Bring, take C. Take, take D. Take, bring
26. -- I' m going to school now, Mum, Bye.
-- Just a minute. It's cold outside, _________ your coat, please.
A. Put on B. Take off C. Put up D. Take down
27. It is better to teach a man to fish than ________ him fish.
A. to give B. giving C. to find D. finding
28. This TV set is too loud, will you please _________?
A. turn down it B. turn it down
C. to turn it down D. to turn down it
29. It will be warmer tomorrow. The temperature will _________ again.
A. fall below B. go up C. stay above D. keep on
30. Dick isn't here. He _________ the cinema.
A. has gone to B. has been to
C. has been away D. has been with
PART III Cloze (完形填空) (20 分)

Passage 1
A new study has shown that mosquitoes can carry AIDS viruses in their bodies for a few days, but the insects do not seem to spread the virus.
In an 31 , mosquitoes that fed on blood 32 with the AIDS virus were later found to have the virus in their bodies. 33 , the mosquitoes did not seem to pass 34 the virus to a sample of uninfected blood when the mosquitoes fed on that sample. Similar experiments 35 recently in South Africa have 36 the same results.
The AIDS virus can stay in a mosquito for two or three days, 37 to the experiment. While in the mosquito, the virus does not multiply. Thus, the mosquito might be viewed 38 a momentary flying syringe, that probably carries 39 too little AIDS virus to 40 the infection.

31.
A. experience
B. experiment
C. example
D. explanation
32.
A. to infect
B. infect
C. infecting
D. infected
33.
A. However
B. Moreover
C. Therefore
D. Besides
34.
A. on
B. by
C. off
D. for
35.
A. concluded
B. combined
C. conducted
D. concentrated
36.
A. processed
B. produced
C. progressed
D. promoted
37.
A. according
B. due
C. owing
D. similar
38.
A. to
B. like
C. for
D. as
39.
A. still
B. even
C. far
D. much
40.
A. slow
B. spread
C. speed
D. stop
Passage 2
All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and 41 mankind. Each year it provides men 42 two hundred million tons of grain and nearly ten million tons of wood.
Coal, oil, 43 gas, and all other fuels are stored-up energy 44 the sun. Some was collected by this season’s plants as carbon compounds (碳化合物). Some was stored by plants and trees ages 45 .
Even waterpower comes from the sun. Water 46 into vapor by the sun falls as rain. It flows down the mountains and is converted to electric power.
Light transmits only the energy 47 comes from the sun’s outer layers, and 48 of this energy that is directly toward the earth never arrives. About 49 of it is absorbed by the atmosphere of the earth. 50 , the earth itself gets only one half-billionth of the sun’s entire output of radiant energy.
41.
A.
warms
B.
feeds
C.
fuels
D.
supplies
42.
A.
for
B.
by
C.
with
D.
to
43.
A.
native
B.
neat
C.
natural
D.
normal
44.
A.
from
B.
by
C.
at
D.
in
45.
A.
before
B.
after
C.
ever
D.
ago
46.
A.
turned
B.
was turned
C.
turning
D.
turns
47.
A.
and
B.
that
C.
when
D.
where
48.
A.
a number
B.
more
C.
many
D.
much
49.
A.
ninths-ten
B.
ninth-tens
C.
nine-tenths
D.
nines-tenth
50.
A.
In use
B.
In fact
C.
In addition
D.
In operation
PART IV Reading Comprehension (阅读理解) (40分)
Passage 1
Language isn’t the only sign of animal intelligence. A Canadian psychologist, Dr. David Sherry, has studied the remarkable memory of nutcracker, a bird that stores food，mostly pine seeds, in tiny caches, or holes, in the ground. A native of western North America, one nutcracker makes 100 to 200 separate caches every day in the fall and winter. When spring arrives, the bird returns to these caches to eat the seeds.
Dr. Sherry says that months after burying the seeds, the birds remember exactly where they stored them. They fly directly to the holes with no need to hunt and peck. “These birds have a highly specialized spatial memory --- it’s amazing,” says Dr. Sherry.
Dr. Sherry says that memory in many animals is associated with an area in the brain called the hippocampus. He found that food-storing birds have a larger hippocampus than birds that don’t store food. Hippocampus damage is one sign of Alzheimer’s disease, a brain degenerative disease marked by a failing memory.

51. What does the passage mainly discuss?
A. Some kinds of birds have excellent memory.
B. How birds store food in the ground.
C. How birds find their stored food.
D. Why birds like to bury seeds in the ground.

52. Nutcracker is a kind of bird that _____.
A. stores seeds in the ground
B. sings very nicely
C. flies to north in winter days
D. works diligently

53. When spring arrives, the bird _____.
A. returns from north
B. flies back to find the stored food
C. starts to build its new home
D. becomes busy in collecting seeds

54. According to Dr. Sherry, if one’s hippocampus is hurt, he may_____ .
A. lose his ability to talk
B. become very forgetful
C. die very soon
D. become easy to get angry

55. The phrase “associated with” in the last paragraph has the same meaning as_____?
A. “linked to”
B. “covered with”
C. “located at”
D. “stored in”
Passage 2
Gordon was a 25-year-old science teacher in 1966 when he bought a brand-new car Volvo P1800. Today, Gordon, now retired, still owns the same Volvo. Last March, he put the 2 millionth mile on the car.
Gordon’s vehicle hit the big 2 million at a TV ceremony held in Times Square in New York City.
To what does Gordon owe his car’s very long life?
“Volvos are very strong cars,” he said. “Also, I drive sensibly. And I take very good care of the car.”
Gordon changes the oil every 3,000 miles; uses only the same brand of oil; changes the spark plugs（火花塞）every 20,000 miles; washes the car regularly; waxes it at least twice a year; and spends a few minutes each week checking under the hood (车篷), among other things.“Being a science teacher, I have a better idea of the ways things work,”he said.
Gordon says the vehicle still has many of its original parts. But many parts, such as the starter motor, the brakes（刹车）, and the water pump, have been rebuilt or replaced.
Gordon’s 2 million miles on the road have taken him almost everywhere in the United States, as well as to Canada, Mexico, and Europe. “Whether I drive 3 million is more up to me than it is the car,” he said. “The car’s parts may be able to take it, but I’m not so sure about my own.”

56. From the passage we can guess that _____.
A. it’s very rare for a car to drive two million miles
B. the story has been written to introduce a new car
C. there were a car show at the New York City’s Times Square
D. no accidents have ever taken place with Gordon’s car
67. The main cause of the car’s long life lies in _____.
A. Gordon’s careful service
B. Gordon’s special knowledge of cars
C. the excellent quality of the car
D. the good quality of the oil he uses

68. Which of the following statements is TRUE according to the passage?
A. All the parts of Gordon’s car have been replaced.
B. Some of the car’s parts can last even longer time.
C. Volvo cars are stronger than Japanese ones.
D. Science teachers can usually keep their cars longer.

69. Gordon has driven his Volvo _____.
A. all over the world
B. both home and abroad
C. mostly around the town he lives in
D. on both American continents

70. By the last two sentences Gordon wants to say that _____.
A. he’s no longer as strong as he was young
B. his car may survive for no less than ten years
C. he worries much about his car
D. he’ll try hard to reach the goal of 3 million miles
Passage 3
Last summer, 16-year-old Andrea Axtell read an interesting article in the papers: A family had walked aimlessly in an Arizona desert after their car broke down. Family members said they felt as if they’d walked in circles for hours before help arrived. That detail attracted Andrea’s interest. “Without a compass or specific landmarks, do people who get lost end up walking in circles?” she wondered. “And if they do, why?”
These simple questions fueled Andrea’s 10th-grade science project. Hungry for answers, she went to the library to conduct background research. Among many facts, she discovered that several body organs control direction and movement. For example:
n Eyes allow people to see their route.
n Structures in the middle ear affect a person’s sense of balance.
n The brain controls whether a person’s right side or left side is dominant（主导旳）, or exerts more control.
“Studies of runners’ strides（步态）show that the dominant foot pushes off with a greater force, which pushes the runner slightly right or left,” she explains.
Armed with this information, Andrea started an experiment to test whether people who don’t know where they’re going end up walking in circles. And several months later, that experiment got a prize at the Intel International Science and Engineering Fair（ISEF）!

71. The aim of Andrea’s research is to find _____.
A. why people walk in circles
B. why runners usually run in circles
C. whether lost people walk in circles
D. how can lost people find their place

72. From where did Andrea get her idea to do her 10-grade science project?
A. From her textbook.
B. From a news report.
C. From a science report.
D. From an experiment.

73. Andrea found from her research that the most important organ controlling direction is _____.
A. the brain
B. the middle ear
C. the eyes
D. Both eyes and middle ear

74. Andrea’s research concludes that people who don’t know where they’re going are in the habit of walking _____.
A. leftwards
B. rightwards
C. either left or right
D. neither left nor right

75. Which of the following statements is TRUE according to the passage?
A. If you are lost in a desert, you’d better stay where you are.
B. One’s middle ear is the only organ to keep him in balance.
C. Lost people can hardly find their way without a compass.
D. The force made by one’s two feet is different when one walks.
Passage 4
Tears are nature’s way of making us feel more comfortable. When our eyes are made uncomfortable by som