When the accident happened.your brother escaped being hurt. ?( )A．didn't heB．did heC．didn't itD．did it 题目和参考答案——青夏教育精英家教网—

题目内容

2．When the accident happened，your brother escaped being hurt，？（　　）

A．

didn't he

B．

did he

C．

didn't it

D．

did it

分析当事故发生时，你的兄弟躲过了伤害，是吗？

解答答案：A
题干表达的是反问；反意疑问句是由陈述句和附加问句构成；附加问句要和陈述句保持一致；如果陈述句是复合句，附加问句要和主句保持一致；句中主句是your brother escaped being hurt，when引导的是时间状语从句，不影响附加问句的构成；主语是your brother，附加问句要用he来指代；谓语动词是一般过去时态，要用助动词did来构成反问；陈述句是肯定，附加问句要用否定．故选A．

点评反意疑问句是由陈述句和附加问句构成．通常附加问句要和前面的陈述句保持一致，但如果是复合句，要分两种情况：正常情况附加问句要和主句保持一致；如果主句的主语是第一人称，谓语动词是表示看法和主张的，附加问句要和从句保持一致．反意疑问句的回答也要注意两种情况：陈述句是肯定，附加问句是否定时，回答和一般疑问句一样；陈述句是否定，附加问句是肯定时，回答要根据事实来回答．切记：yes翻译为不，no翻译为对．

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As almost everyone knows, 1.(become) extinct is to be gone forever. Natural extinction happens when a species declines in numbers gradually. Even before man's arrival on Earth, some species had died out quite 2.(natural).

The ease of the dinosaurs is3.most well-known example of natural extinction.4.(they) disappearance is a natural one and new species of animals evolve (进化）to replace them.

The rate of extinction 5.(speed) up unnaturally over the last 400 years.6.(rise) sharply since 1900. This increase in the rate of extinction is directly related 7.the increase in the human population over the same period of time. Vast numbers of humans have caused great damage to the planet, as humans have taken over a great many wild 8.(habitat), forcing animals and plants into smaller and9.(small) areas, until some of them have become extinct. We have also polluted our planet.10.makes it unfit for wildlife. These causes of extinction are known as indirect destruction.

Your house may have an effect on your figure . Experts say the way you design your home could play a role in whether you pack on the pounds or keep them off . You can make your environment work for you instead of against you . Here are some ways to turn your home into part of diet plan.

Open the curtains and turn up the lights . Dark environments are more likely to encourage overeating , for people are often less self-conscious（难为情）when they’re in poorly lit places-and so more likely to eat lots of food . If your home doesn’t have enough window light, get more lamps and flood the place with brightness.

Mind the colors. Research suggests warm colors fuel our appetites. In one study, people who ate meals in a blue room consumed 33 percent less than those in a yellow or red room . Warm colors like yellow make food appear more appetizing , while cold colors make us feel less hungry . So when it’s time to repaint, go blue.

Don’t forget the clock-or the radio. People who eat slowly tend to consume about 70 fewer calories（卡路里） per meal than those who rush through their meals. Begin keeping track of the time, and try to make dinner last at least 30 minutes, And while you’re at it, actually sit down to eat. If you need some help slowing down, turn on relaxing music. It makes you less likely to rush through a meal.

Downsize the dishes. Big serving bowls and plates can easily make us fat. We eat about 22 percent more when using a 12-inch plate instead of a 10-inch plate. When we choose a large spoon over a smaller one ,total intake（摄入） jumps by 14 percent. And we’ll pour about 30 percent more liquid into a short, wide glass than a tall, skinny glass.

1.The text is especially helpful for those who care about_______.

A. their home comforts B. their body shape

C. house buying D. healthy diets

2.A home environment in blue can help people_________.

A. digest food better B. reduce food intake

C. burn more calories D. regain their appetites

3.What are people advised to do at mealtimes?

A. Eat quickly. B. Play fast music.

C. Use smaller spoons. D. Turn down the lights.

4.What can be a suitable title for the test?

A. Is Your House Making You Fat? B. Ways of Serving Dinner

C. Effects of Self-Consciousness D. Is Your Home Environment Relaxing?

The chances are that you’ve walked past a QR Code(二维码) or come into contact with one recently, possibly without noticing. Even if you haven’t seen one before, here are some examples for you.

But what exactly are QR Codes? Very simply, they are bar-codes, not too dissimilar to the bar-codes you saw on the package of almost every product you bought. QR Codes are combined with multiple rows and columns(列), which allows QR Code to stone its data.

QR Codes started out in the East but their popularity exploded worldwide within a few years. They are flexible, cheap, easy to read by scanners as simple as an App on your smart phone and easy for anybody to create. The direction of reading the QR codes is not limited. Even when damaged there is a chance that they are still readable. Unlike traditional bar-codes which are 1 dimensional （using 1 row of lines）, QR Codes use 2 dimensions, which allows them to store a lot more data in the same area of space.

But can a picture or music be stored in a QR Code? Images and sounds consume much more data than text and a QR Code is limited to storing 3kb of data. The size of an image will need to be made so small to be stored that it will be impractical to do so. So it is with songs. In fact if you have a need to present the user with an image or kick off a music stream when they scan your QR Code, why not look to host it somewhere and then have your QR code simply linked to the content?

Not only have QR Codes surely brought us great convenience, but also security concerns at the same time. For example, a QR Code may be covered by one designed by a cheater on purpose, without being recognized. You sign up entering all your account details only to find the following day someone has gained access to your account because of the information you entered in that website.

1.What do we know about QR Codes?

A. They can be scanned from any direction

B. They use 1 row of lines to store data.

C. They are readable when damaged.

D. They are flexible but not cheap.

2.Which is one big drawback of QR Codes?

A. A QR Code can be linked to somewhere else.

B. QR Codes cannot be used to present a picture.

C. A QR Code can store data of no more than 3kb.

D. QR Codes can only be read with an app on your smart phone.

3.From the text we can infer that _______.

A. traditional bar-codes have an advantage over QR codes in storing data