[名校版]高考高中英语综合训练题含答案
（2022淄博二模卷）Online learning is a term ud to describe distance cours that are offered over the Internet. The cours cover a wide range of subjects and audiences. This educational method is growing in popularity as an economical method of providing access to education for a large population.
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There are two types of online cour access: open and restricted. Open access allows actually anyone with an Internet ur to view the cour material. This type of online learning does not require interaction with an instructor. The material covered can range from very specific instructions to university level cours. This initiative removes the barriers to advanced knowledge and allows anyone with the interest to learn. The other type of online cours are restricted access cours. Restricted access is ud to limit the class to registered students. The cours offer instructor interaction and are typically the method ud by cours that require grades upon graduation.
It is more efficient for both the educator and the student to access cour materials online.
From the educator aspect, the cour lectures can be recorded once and reud. This greatly reduced the staff time and costs. Meanwhile, online cours allow students to complete courwork from a wide range of locations and remove the time restriction to access cour lectures. Students are no longer required to travel to the class and many cour materials are included in the fee. The material for online cours has been carefully reviewed and approved before the cour is offered. Many introduction and cours do not change, as the material is fixed. As a result, the cours are stable and can be reud as needed.
未来的我作文500字Technology continues to expand to meet the needs of online students. The tools include mobile audio and video viewers, improved online interactive tests, and tool and cour management software. The continued development in this area will further enhance the quality of online cours and encourage more people to further their education.
12. Why is online learning winning more recognition?
A. It is cost-effective.
汉苏武B. It is free to access.
C. No teacher is required.
D. Education is getting more important.
13. What do we learn about restricted access?
A. Learners are required to register.
B. Learners can learn without evaluation.
C. It is intended for advanced learners only.
D. It has no interaction with an instructor.
14. What is paragraph 3 mainly about online cours?
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A. The participants.
B. The time restrictions.
C. The advantages.
D. The ever-changing materials.
15. How does the author feel about the future of online learning?
A. Challenging. B. Critical. C. Worrying. D. Promising.
AACD
飞机上可以拍照吗Rearchers say a new electrical device placed in three paralyzed patients has helped them walk again. The lower bodies of the three patients were left paralyzed after they suffered spinal (脊柱的) cord injuries. But a device implanted in the spinal cord was able to nd electrical signals to the muscles to permit them to stand, walk and exerci.
Scientists have discovered that neurons—which receive and nd signals for muscle movements—often still work in injured patients with rious spinal cord injuries. However,
past rearch into spinal cord injuries has centered on the stimulation of neurons. Now in the latest experiment led by Gregoire Courtine and Jocelyne Bloch of the Swiss Federal Institute of Technology in Lausanne, three paralyzed men were implanted a new electrical device designed to copy an action of the brain, in which it nds signals to the spinal cord that result in muscle movement. When the spinal cord receives the brain signals, it stimulates a collection of nerve cells that can activate different muscles.
The rearchers reported that all three patients who got the spinal cord implants were able to take their first steps within an hour after receiving them. Over the next six months, the patients regained the ability to take part in more advanced walking activities, the study found. They were also able to ride bicycles and swim in community ttings.
Unlike other attempts to help paralyzed patients walk by stimulating nerves through the back of the spine, Courtine said that his team 佛诞日redesigned the devices so signals would enter the spine from the sides. This method permits more direct targeting and activation of spinal cord areas, he said.
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The team then developed artificial intelligence (AI) systems linked to the device. The AI controls electrodes on the device to nd signals to stimulate individual nerves that control muscles needed for walking and other activities. However, becau the patients muscles were weak from not being ud, they needed help with supporting their weight, the rearchers said. It also took some time for them to learn to work with the technology. Still，Bloch said, “The more they train, the more they start lifting their muscles, the more fluid it becomes.”
