课文原文填空1.Wang Ping flashed a switch on a compu...

课文原文填空

1.Wang Ping flashed a switch on a computer screen, and a table and some chairs rose from the floor _________________.

2.The capsule began swing gently sideways as we lay_________________A few minutes later, the journey was completed and we had arrived.

3.However, I lost sight of wang ping when we reached__________________ because of too much carriages flying by in all directions.

4.You need to be curious.Only if you ask many different _________________ you need to know.

5.A football player was accused of taking money _________________　 so as to let the other team win.

高二英语用适当的词完成句子简单题查看答案及解析

Then Wang Ping flashed a switch on a computer screen，and a table and some chairs rose from under the floor________by magic.

高二英语单项填空中等难度题查看答案及解析

Blue light before bedtime can make it harder to sleep, and the screens on phones, computers, and televisions send out plenty of blue light. This is all true. But if you're focused on blue light as a major problem affecting your sleep or your eye health, it's time to look at it from another aspect.

As Philip Yuhas, a professor of vision, writes at The Conversation, blue light isn’t a uniquely technological evil. It's part of sunlight, and your eyes are exposed to plenty of it all the time. You ' re fine. There are studies in mice that have found blue light can damage their eyes, but mice are nocturnal creatures (夜行动物) whose eyes are different from ours. The pigments (色素) and the lenses (晶状体) of our eyes actually block blue light fairly well--so in a sense, we already have built-in blue blocking protection

Adding more protection isn't likely to help though. You can buy glasses and screen filters (滤光片) that block blue light, but Yuhas points out they are probably a waste of money: these products do not block out much blue light. The leading blue-blocking anti-reflective coating, for example, blocks only about 15% of the blue light that screens send out. You could get the same reduction just by holding your phone another inch from your face.

The American Academy of Ophthalmology doesn't recommend blue-blocking products, either. Instead if you're concerned about your eye health or your ability to get to sleep on time, you already know what to do:

Put the screens away at bedtime. Read a book or find something else to do. While you're using screens take a 20-second break every 20 minutes to look at something 20 feet away ( the "20-20-20 " rule ). If you get dry eyes when you look at screens for a long time, use eyedrops labeled artificial tears.

1.What do people think of blue light generally?

A.It is a necessary part of sunlight. B.It is magical and rare.

C.It is the major factor affecting sleep. D.All electronics send out blue light.

2.What did the studies in mice find?

A.Mice can see clearly in the dark. B.Our eyes actually block blue light well.

C.Eyes can be long exposed to blue light. D.Blue light can damage mice's eyesight.

3.What can we know about blue-blocking products?

A.They block only 15% of the blue light. B.Few have much effect on the blue light.

C.They can prevent much harmful lights. D.They are thought highly of by experts.

4.What could be the best title for the text?

A.How can Blue Light Be Prevented? B.Why does Blue Light Make Sleeping Hard?

C.Are Blue-blocking Products Necessary? D.What will Blue Light Affect Actually?

高二英语阅读理解中等难度题查看答案及解析

On turning on the computer, ________.

A. Mum told me to have supper.              B. a game appeared on the screen.

C. there was something wrong with the mouse   D. I found a strange E-mail.

高二英语单项填空中等难度题查看答案及解析

Make sure you save all your work on screen____the computer breaks down.

A. in case　　 B. as if　　 C. so that　　 D. even though

高二英语单项填空中等难度题查看答案及解析

I __________ Wang Ping again and flew after him.

A. took up            B. swept up         C. caught sight of   D. speed up

高二英语单项填空中等难度题查看答案及解析

课文填空

The largest organ of our body is skin, which acts as a　 1. against disease, posions and so on. It has　 2. functions. But when your skin gets burnt, it can be very serious. So it is very important to know first aid for burns.

However, if you’ve got burns, first, 3.clothing using scissors if necessary　 4. it is stuck to the burn. For second degree burns, keep cloths cool by putting them back in a basin of cold water, 5. them out and placing them on the burned area over and over　 6. for about an hour. Next, dry the burnt area　 7., then cover the burned area with a dry, clean 8. without sticking to the skin, and hold it in 9. with tape. If you’ve got second or third degree burns, it’s 10. to get the victim to the doctor or hospital at once.

高二英语其他题中等难度题查看答案及解析

课文填空

1.A bird had ______________________________ from the ground and then dropped it on to the wires.

2.He explained that his diet was so strict that he had to ______________________________. Then he showed me the contents of the parcel.

3.______________________________, the room is rather small, so I have temporarily put my books on the floor.

4.No one was ever bored watching him --- his subtle acting ______________________________.

5.He made people laugh at a time when they felt depressed, so they could ______________________________ their lives.

6.Unfortunately, his father died, leaving the family ______________________________.

7.The most universal facial expression is, of course, the smile --- its function is to show happiness and ______________________________.

8.She stepped back appearing surprised and put up her hands, ______________________________.

9.Classes or other large groups that let Futuroscope know their plans in advance can get ___________________________________.

10.If driving, Futuroscope is ______________________________ the freeway.

高二英语其他题中等难度题查看答案及解析

________ the red switch on the left and the flying machine will swiftly go up into the air and ________ its journey.

A．Press, begins       B．Press, begin        C．Pressed, begins     D．To press, to begin

高二英语单项填空中等难度题查看答案及解析

When Fei Junlong and Nie Haisheng stepped out of the hall, all the cameras were 　　　　 on them, flashing quickly.

A．pointed　 B．aimed C．focused　 D．directed

高二英语单项填空中等难度题查看答案及解析