阅读理解

     At one time, computers were expected largely to remove the need for paper copies of documents because they could be stored electronically. But for all the texts that are written, stored and sent electronically, a lot of them are still ending up on paper.

     It is difficult to measure the quantity of paper used as a result of the use of Internet-connected computers, although just about anyone who works in an office can tell you that when email is introduced, the printers start working overtime. "I feel in my bones this revolution is causing more trees to be cut down," says Ted Smith of the Earth Village Organization.  

     Perhaps the best sign of how computer and Internet use pushes up demand for paper comes from the high-tech industry itself, which sees printing as one of its most promising new markets. Several Internet companies have been set up to help small businesses print quality documents from a computer. Earlier this week Hewlett-Packard Co. announced a plan to develop new technologies that will enable people to print even more so they can get a hard copy of a business document, a medical record or just an online email, even if they are nowhere near a computer. As the company sees it, the more use of the Internet the greater demand for printers.

     Does all this mean environmental concerns have been forgotten? Some activists suggest people have been led to believe that a lot of dangers to the environment have gone away. "I guess people believe that the problem is taken care of, because of recycling," said Kelly Quirke, director of the Rainforest Action Network in San Francisco. Yet Quirke is hopeful that high-tech may also prove helpful. He says printers that print on both sides are growing in popularity.

     The action group has also found acceptable paper made from materials other than wood, such as agricultural waste.

设N_A为阿伏加德罗常数，则下列说法中正确的是（   ）

若规定=ad-bc 则不等式log<0的解集是（　　）

补写下面句子空缺的部分。

补写出下列句子中的空缺部分。

根据要求填空：

若矩阵 ，记 ，以下四个命题中的矩阵 都是 阶矩阵， ，则其中真命题的个数为（    ）

① 若 ，则 ；② 若 ，则 ；③ ；④ 若 ，则 ；

若线性方程组的增广矩阵为 ， 其解为 ， 则.

N_A为阿伏加德罗常数的数值，下列说法中正确的是（    ）

①0.5mol O₃与11.2L O₂所含的分子数一定相等

②标准状况下，28g CO与N₂的混合气体的体积约为22.4L

③通常状况下，N_A个CO₂分子占有的体积为22.4L

④常温常压下，92g的NO₂和N₂O₄混合气体含有的原子数为6N_A

⑤常温下，4.4g CO₂和N₂O（不反应）混合物中所含有的电子数为2.2N_A

⑥标准状况下，22.4L SO₃含有的分子数为N_A

⑦在常温常压下，1mol O₂含有的原子数为2N_A

阅读理解

    Jack was born without eyes. He was very lucky with his timing. He grew up having other kittens to play and socialize with, and was used to getting on with people from the moment he was born since there were always kids hanging around the barn. He was a favorite amongst the students at the barn. However, when it came time to find the kittens' homes, no one knew where Jack would end up. That was when I got an e-mail from my friend. All she asked was "Do you still want one of the kittens? There's one here with no eyes and no one can take him." Without thinking I told her that I did want the kitten.

    When we first brought him home, Jack walked cautiously around, sniffing everything. He went through a time when he could climb the stairs, but couldn't get down. He would sit at the top and cry until someone came and got him. Every now and then when he gets disoriented he'll stop and cry. But we just call his name and talk to him and it isn't long before he finds his way back to us.

    Also, a few weeks after getting Jack, we got a new barn cat named Bear. I always take Jack outside at that time for some fresh air and exercise. He loves to run(at top speed!)around the backyard and gardens. Bear and Jack have become best friends. Jack always knows when Bear is around. He'll run across the yard straight to Bear and wrap his front legs around his neck in a big hug. When they're tired they'll lie down in the grass together.

    Jack is truly an inspiration. I've owned a lot of kittens in my life, but Jack is the happiest, most playful of them all. People who know Jack don't feel sorry for him. They cherish him for the treasure that he is. I have talked to a few people who haven't met him personally and tend to pity him, but they just don't understand. Jack doesn't need pity. I think that cats like him don't have disabilities; they have adaptabilities.

It made our head teacher angry ________ Wang Lin，without the ________ from the school，was absent from class for a week.

设N_A表示阿伏加德罗常数的值，下列叙述中错误的是（   ）

根据短义内容，从短文后的选项中选出能填入空白处的最佳选项。选项中宥两项为多余选项。

Health Mistakes to Avoid Making When Traveling

    Everyone is talking about amazing travel experiences. However, there is always the other side of the coin. If you want to add more wonderful travel experiences to your life, make sure you avoid these health mistakes during your next trip.

Refusing injections

    At times you are asked to have an injection in order to avoid a certain disease before traveling to your destination. In many cases, mosquito bites lead to malaria(疟疾） and there are many other health risks that you may face during your trip. Refusing injections is the worst thing you can do to your health.

Eating out in the street

    . Yes, it is cheaper and tastier than restaurant meals. However, when visiting a country where clean food and dishes arc not priority (优先)，your stomach may not survive this experiment. Just because locals eat street food and feel healthy does not mean you will feel the same.

Drinking tap water

    Staying hydrated(吸入水分）is necessary, so is the water choice. Even if locals tell you that their tap water is safe to drink, it is best to choose bottled water. . it is at least clean. It is always better to be safe than sorry.

    . Google maps make our travel experiences easier since you can check out the place you are going to visit before you even book the ticket. Unfortunately, not all tourists take advantage of them. This is a successful way to really relax and enjoy the trip.

    Even an expert traveler is guilty of making most of these health mistakes. , you will probably not commit any of them during the trip, will you?

A. Eat lots of good nutritious food B. Although it is not the healthiest choice C. Budget travelers are all guilty of eating street food D. Being unaware of surroundings E. Make sure you get it F. Now that you know some health mistakes to avoid G. Having a good knowledge of map details

科学家发现了一种新的氮单质，分子式为N₃ 。若两密闭容器中分别盛放N₂和N₃ ， 且两容器中有相同数目的N原子，则两容器中的N₂和N₃一定具有相同的(    )

在三阶行列式中，5的余子式的值为 ．

下列关于化学用语的表示正确的是（　　）

回答下列问题

Every morning many are learning English in the park, (memorize) vocabularies and reading English newspapers.

The top students ______ at the assembly today were awarded a pen and a notebook each.

古代诗歌阅读

游月陂bēi！

宋程颢

月陂堤上四徘徊，北有中天百尺台。

万物己随秋气改，一褥聊为晚凉开。

水心云影闲相照，林下泉声静白来。

世事无端何足计，但逢佳节约重陪。

[注]月陂(bēi)：水泊名。因形如刀，故名月陂，遗地在；洛阳洛水之南。