Aron ______ water five days later.

A. ran out B. used out

C. ran out of D. used out of

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科目：初中英語(yǔ) 來(lái)源：2019年春人教版英語(yǔ)七年級(jí)下冊(cè)：Unit 3 自我檢測(cè) 題型：單選題

Jim often goes to school ________ bike.But today he goes to school ________ the school bus.

A. on；by B. by；by

C. by；on D. on；on

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科目：初中英語(yǔ) 來(lái)源：北京西城區(qū)2019屆九年級(jí)上學(xué)期期末質(zhì)量檢測(cè)英語(yǔ)試卷 題型：閱讀單選

Virtual (虛擬的) reality is a way to create a computer-made environment that brings the user into a virtual world. If you ever have put on a VR headset, you would know exactly what I am talking about. From an experiential view we do understand the idea, but what about the technical backend that goes into making it all possible? In this blog, we will understand the technology behind virtual reality and the basic terms about the development of a virtual ecosystem for a VR headset.

The primary subject of virtual reality is simulating (模擬) the vision. Every headset is to perfect their method to create an immersive (浸入式) 3D environment. Each VR headset puts up a screen or two in front of eyes, keeping the user away from any interaction with the real world. Two autofocus lenses (自動(dòng)對(duì)焦鏡片) are generally placed between the screen and the eyes that change based on eye movement and positioning. The vision appears on the screen either by using a mobile phone or HDMI line connected to a PC.

To create a truly immersive virtual reality, there are certain requirements — a frame rate (幀率) of at least 60 fps, a refresh rate and at least 100-degree field of view ( though 180 degrees is perfect). If either of these doesn’t work according to the standards, the user will experience too big of a time difference between their actions and the response from the screen. We need the response to be less than 20 ms ( 1/1000 second) to fool the brain which is achieved by joining all the above in the right proportion (比例). Another matter that needs to be looked at here is to prevent netsickness because of the differences between the frame rate and refresh rate.

Apart from the image, there are certain other things that go into creating an immersive VR experience, holding the user’s attention completely in the virtual environment. For example, sound effects, when put with the image, can create very attractive effects. By using a headphone and 3D sound effects, the user can totally believe in the virtual environment. While perfecting sound effects, proper care needs to be taken about the consistency (一致) between the pictures and the sound. If you start playing frightening music in the background of a happy scene, it will just put the user off.

In future, we will see rapid progress in creating a truly immersive digital experience. With leading players like Google, Microsoft, Oculus, and HTC making great efforts to improve the capabilities (性能), we are not far from achieving a virtual reality that would feel so much better than the real world. If you would like to develop a VR app for your business, then feel free to get in touch. With over 10 years of experience in mobile technologies, we can make every dream a reality.

1.A VR headset helps the user _________.

A. create the vision on the screen

B. understand the technical backend

C. better experience a 3D environment

D. keep interaction with the real world

2.The words "put the user off" in Paragraph 4 probably mean "__________".

A. take the user’s attention away

B. get the user interested

C. hold the user’s imagination back

D. help the user understand

3.What is the main purpose of writing this passage?

A. To give a short introduction of VR.

B. To do business with certain readers.

C. To predict the bright future of VR.

D. To share experiences with readers.

4.What can we learn from the passage?

A. The lower degree field of view, the better images.

B. Sound effects are more important than the image for VR.

C. Some big companies may create a VR better than the real world soon.

D. The brain can tell the time difference when the response is more than 20 ms.

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科目：初中英語(yǔ) 來(lái)源：人教版八年級(jí)英語(yǔ)下冊(cè)單元檢測(cè)卷：Unit1 題型：材料作文

書(shū)面表達(dá)

你看過(guò)類似的老人跌倒無(wú)人理會(huì)的新聞嗎？你又聽(tīng)說(shuō)過(guò)最美女教師救她的學(xué)生的故事嗎？對(duì)這兩種社會(huì)現(xiàn)象，你有什么看法呢？請(qǐng)你以“Would you like to help others?”為題寫(xiě)一篇短文。

內(nèi)容包括：1. 你對(duì)上面其中一件事的看法。

2. 如果你遇到了這樣的事情會(huì)怎樣做。

3. 講述你的一次類似經(jīng)歷。

作文要求：1. 詞數(shù)80個(gè)左右。不得照抄原文；不得出現(xiàn)學(xué)校的真實(shí)名稱和學(xué)生的真實(shí)姓名。

2. 條理清晰，語(yǔ)句連貫。

Would you like to help others?

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

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科目：初中英語(yǔ) 來(lái)源：人教版八年級(jí)英語(yǔ)下冊(cè)單元檢測(cè)卷：Unit1 題型：單選題

The new kind of car is _____ dear, I don’t have _____ money.

A. too much; much too B. much too; too much

C. too much; too much D. much too; much too

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In the last few years, “A Bite of China” in CCTV ___________ all over the country.

A. is popular B. has been popular C. was popular D. will be popular

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榜樣的力量是無(wú)窮的。在我們身邊有許許多多的榜樣，勤勞的工人伯伯，辛勤的老師，熱情的同學(xué)，慈愛(ài)的父母......。某英文網(wǎng)站正在開(kāi)展以“我身邊的榜樣”為主題的征文活動(dòng)。假如你是李華，請(qǐng)用英語(yǔ)寫(xiě)一篇短文投稿，談?wù)勀闵磉叺陌駱邮钦l(shuí)，他（她）具有什么樣的品質(zhì)，你從他（她）身上學(xué)到了什么。

提示詞語(yǔ)：kind, helpful, warm-hearted ,hard-working, set a good example

提示問(wèn)題：

Who is your role model?

What traits(品質(zhì)）does your role model have? Please give one or two examples.

What have you learned from him/her?

Everyone has a role model. ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

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– do you usually go to school?

– On foot. It’s good for my health.

A. How B. When C. Where D. Why

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—What did you do when you were in London?

—I Buckingham Palace.

A. visited B. am visiting C. visit D. will visit

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