阅读下列短文，从每题所给的A、B、C三个选项中选出最佳答案。
The careful use of lecture videos could help people study more efficiently（高效地）, say researchers at the University of California, Los Angeles （UCLA）.
According to a new study, watching lecture videos at twice the normal speed has almost no bad effect on learning. Even better, watching lecture videos at an increased speed more than once may even lead to improved learning and higher test scores compared to watching once at normal speed.
The study, done by UCLA’s Department of Psychology, put students into groups and asked them to watch lecture videos at different speeds without taking notes. The students then took tests based on the video content.
The test results showed little difference in scores between students who watched the videos at normal speed and those who watched at up to double speed—meaning students could halve（减半）their study time with little effect on learning.
But students shouldn’t speed up too much—because students who watched the videos at two-and-a-half times the normal speed had lower test results.
It was also found that watching the videos twice at double speed—both one week before the test and again immediately before it—produced higher test scores compared to students who watched the videos just once at normal speed.
During the COVID-19 pandemic, many countries have used some types of remote（远程的）learning, including video lessons. And while students and teachers have worried about the effects of remote learning, the UCLA study suggests that, if used the right way, video lectures could actually help make studying more efficient.
（1）What may happen if we watch lecture videos at an increased speed more than once?
| A． |
It may improve learning. |
| B． |
It may improve reading skills. |
| C． |
It may lead to the best test result. |
（2）What were the students asked to do before taking tests?
| A． |
Discuss the video content. |
| B． |
Watch videos at different speeds. |
| C． |
Take notes while watching videos. |
（3）What can we learn about remote learning?
| A． |
It helps develop learning habits. |
| B． |
It increases the speed of teaching. |
| C． |
It makes learning better if rightly used. |
（4）What’s the best title for the text?
| A． |
Watching Videos Is a Good Way of Learning |
| B． |
Watching Videos Helps Get High Test Scores |
| C． |
Watching Videos at Double Speed Could Help Learning |
A 15-year-old student who invented a flashlight(手电筒) getting power from the holder's body heat is going home today from California with a big prize and a chance to do further research.
Ann Makosinski was the only Canadian among the four winners at Google's international science competition. Thousands of young scientists from around the world took part in the competition.
Winning the science and technology competition was "a surprise". Ann said, "I think it will have a great influence on my future."
Ann thanked her family for encouraging her interest in science and said that her first toy was a box of transistors(晶体管).
Ann's prize includes $ 25,000 and a "once in a-lifetime expericnce" from Google for her Hollow Flashlight, which has no moving parts or batteries.
The idea for the invention came from seeing unwanted batteries and her friend's experience. When Ann visited a friend in the Philippines, she saw the friend couldn't study when it became dark because there was no electricity or light. She saw the need for a flashlight that has no batteries - Hollow Flashlight.
In her project, Ann wrote "I made two flashlights that do not use any batteries or harmful materials. They do not create any noise and will always work. The flashlight needs at least a 5℃ temperature difference between the holder's body and the environment around to produce light."
A video of Ann explaining how she creatcd the flashlight has been watched more than 1.4 million times on the Internet.
Though Ann was successful, she has not made a decision about her career path. Ann hopes that she can find a way to join her love of film and science together.
The four winners were chosen from 15 final competitors from eight countries. The competition attracted thousands of students in 120 countries.
In which part of a newspaper can we probably read this passage?
| A．Travel. | B．Culture. | C．Technology. | D．Advertisement. |
The first paragraph is written to be a(n) ________.
| A．introduction | B．warning | C．argument | D．discussion |
Paragraph 6 mainly tells us ________.
| A．what Ann saw in the Philippines | B．why Ann invented Hollow Flashlight |
| C．how Ann's family encouraged her interest | D．what prize Ann got for Hollow Flashlight |
According to the passage, we learn ________.
| A．easy to win the international science competition |
| B．Hollow Flashlight is safe, noiseless and can save energy |
| C．Ann has made a decision to be a scientist in the future |
| D．few people are interested in how Ann created the flashlight |
Andi Davise, 49, regularly crossed the trail through the Phoenix Mountains Preserve with a few other hikers before sunrise. This morning, however, she met nobody and heard only the sounds of animals.
Some time later, Andi got to the steep slope(陡坡), she climbed up to the top by using her hands. When she finally reached the top, she noticed a dark shape several inches from her left foot. She was frightened and then looked carefully. "It's a dog and it's dead." she said to herself. It took her a few seconds to realize that the dog's eyes were open. A thin, dirty bull dog was looking at her.
She greeted in a low and soft voice to show she was friendly. The bull dog shook when he heard her voice.
Andi inched closer and dropped some water into the dog's mouth. He tried to stand up but failed. Something was wrong with his left front leg. Andi pulled out her phone to contact her husband, Jason, but he didn't respond. She knew that if she didn't carry the dog down the mountain, he would die.
She carefully put her arms under the dog's body. He was so weak that he fell into her chest.
Andi had great trouble going down the steep, rocky mountainside with the 50-pound animal in her arms. Even her arms and back started aching, she didn't give up. The trip up had taken 30 minutes while going back down took twice that.
Andi's husband received her messages at last. He and their son, Justin, jumped into the car and drove to pick up Andi.
Later that morning, an X-ray showed that the bull dog was badly hurt, he was likely to lose his left leg.
A few days later, the Davises returned to the animal hospital. "The first thing he did was to give me a kiss, then he went right to my son." Andi said. They named the dog Elijah and brought him home that day.How did Andi get to the top of the mountain?
| A．Her husband sent her. |
| B．Another hiker helped her. |
| C．She climbed by herself. |
| D．She reached there by car |
What does the underlined word "respond', in Paragraph 4 mean?
| A．Pull. | B．Contact. | C．Speak. | D．Answer. |
Which of the following is the correct order?
a. Audi found a dying dog on the top.
b. Andi climbed up the steep slope.
c. The Davises brought the dog home.
d. Andi had much trouble carrying the dog down.
e. The Davises drove the bull dog to the hospital.
| A．badce | B．badec | C．abdce | D．adbec |
The best title should be "________".
| A．A woman hiker saved the life of a 50-pound bull dog |
| B．A woman hiker carried a bull dog down the mountain |
| C．A woman hiker got on well with a 50-pound bull dog |
| D．A woman hiker found a 50-pound dog on the mountain |
World War II lasted from 1939 to 1945. Life changed for everybody, including women and children because of the war. Millions of people lost their lives during the war. The Diary of a Young Girl was a record of that time. The book was written by a girl named Anne Frank.
Anne Frank was born in Germany in June 1929. Because the German Nazi(纳粹分子) hated the Jews(犹太人) and warned to kill them, her family had to move to another country. In July 1942, they went into hiding in a secret place in her father's office. During that difficult time, Anne kept writing diaries until she and her family were discovered by the Nazis in August 1944. They were caught and sent to a Nazi camp. The next year, her mother died. In the same year, she and her elder sister died of illness, before the war ended.
After the war, her father collected her diaries and the book The Diary of a Young Girl came out in 1947. It has been put into over 30 languages since then. The book has been read by people all over the world. In her diary, Anne wrote down her thoughts, her feelings, her hopes and her dreams for the future, "I want the diary to be my friend, and I'm going to call this friend Kitty." "I can't spend all day complaining because it's impossible to have any fun! ... Every day, I feel the beauty of nature and the goodness of the people around me. With all that, why should 1 be sad?"
The Diary of a Young Girl has also become a symbol of the greatness of the human spirit. It is called one of the wisest and most moving records on war.In which year did Anne die of illness?
| A．In 1939. | B．In 1942. | C．In 1944. | D．In 1945. |
According to the passage, "Kitty" is ________.
| A．her diary | B．her elder sister | C．her mother | D．her hiding place |
Which of the following is true?
| A．Anne was lazy, sad and complained all day. |
| B．The book is mainly about Anne's school life. |
| C．Anne loved life though she was in difficult time. |
| D．The book has been put into nearly 30 languages. |
From the passage, we can infer(推断) ________.
| A．Anne was born in Germany | B．Anne was a Jew |
| C．Anne's father collected the diaries | D．Anne was a Nazi |
Six months ago，Jack came to China to study. He has heard that Yangzhou is famous for its gardens. And he plans to visit some gardens in July, so he has collected information about them online as follows:
| The Slender West Lake. named National AAAAA Tourist Area in 2010, includes the Great Rainbow Bridge, the White Pagoda, Five-pavilion Bridge, the Twenty-four Bridge, the Small Golden Hill and so on. The best time to tour the Slender West Lake is in March. During the visit to the park, the boat travels on the water and visitors travel in the picture. Ticket: Mar. - May. ¥ 150; Other months ¥90 Time: 8:30 - 17:00 Bus: No. 4, 5, 6, 17, 61 buses Tel: 0514-87357803; 0514-87370091 Website: http://www.shouxihu.com |
| Ge Garden, one of the four lop famous Chinese gardens, got its name from bamboo. The bamboo in the garden forms the green scenery. The centre of the garden is well known for man-like hills. Four seasons can be experienced here at a time. Ticket: Mar. - May. ¥ 10; Other months ¥30 Time: Mar. - May. 7:15 - 18:00; Other months 7:15 - 17:30 Bus: No. 8, 30, 61 buses Tel: 0514-87935285 Website: http://www.gy-garden.net |
| He garden, the most famous garden in the late Qing Dynasty, is known for its long double-way corridor(走廊), which is regarded as the earliest footbridge. Ticket: Mar. - May. ¥ 40; Other months ¥30 Time: 7:30 - 17:15 Bus: No. 19, 61 buses Te: 0514-87900345; 0514-87222353 Website: http://www.he-garden.net |
How much will a ticket cost Jack if he visits the Slender West lake?
| A．30 yuan. | B．40 yuan. | C．90 yuan. | D．150 yuan. |
What's He Garden famous for?
| A．The long corridor. | B．The green bamboo. |
| C．The man-made hills. | D．The boat travelling. |
Which of the following can Jack do?
| A．He can take a NO. 19 bus to Ge Garden. |
| B．He can visit the Slender West Lake at 8:00. |
| C．He can call 0514-87935285 for further information of He Garden. |
| D．He can go to www.he-garden.net to know more about He Garden. |
Mike Myers is a teacher at Chauncey Rose High School in Terre Haute, Indiana. Last year, he taught his students about the world’s rain forests. They learned that rain forests are important because the plants and animals of the rain forest give us food, wood, and medicine.
Destruction of the world’s rain forests is a serious problem. Unluckily, rain forests are disappearing at a rate of 80 acres per minute! As part of a class project, Myers’ students bought three acres of rain forest in Central America. They paid $25 per acre. The students hope that the land they bought will be protected and not destroyed. The students became so interested in rain forests that they decided to get a closer look at a real rain forest.
So last June, Myers and four of his students took a boat ride down a river. They saw alligators and crocodiles. In the middle of the week, a guide took Myers and his students into the rain forest. “The monkeys were not happy that we were in their forest. They broke small branches off the trees and threw them at e us,” one of the students said, “It was a great learning experience for all of us,” said Myers.
Each student chose something specific about Costa Rica to study involving the plants, animals, food, and culture. During the last few days the group had time to do fun activities. They went whitewater rafting and horseback riding, and visited Costa Rica’s active volcano.
Myers hopes to make the trip every year with a different group of kids.How much did Myers’ students pay for the rain forest they bought?
| A．$25 | B．$75 | C．$80 | D．$2000 |
What did Myers and his students do at the beginning of the trip?
| A．They went into the rain forest. | B．They bought acres of rain forest. |
| C．They took a boat ride down a river. | D．They visited Costa Rica’s active volcano. |
The word “Destruction” in paragraph 2 probably means “the process of being ______.”
| A．destroyed | B．developed | C．described | D．discovered. |
When the monkeys saw Myers and his students, they ___________.
| A．felt excited | B．felt angry | C．jumped off the trees | D．left the rain forest |
The passage mainly shows that Myers and his students __________.
| A．did something to protect rain forest |
| B．wanted to buy the rain forest in Costa Rica |
| C．were interested in the culture of Costa Rica |
| D．went to the rain forest for various fun activities |
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