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Shark Facts There are almost 400 different kinds of sharks. Each kind of shark looks different, has a unique diet, and behaves differently. There are sharks in all four oceans of the world. Some sharks are longer than a school bus, while others are so small they can live in fish tanks. Sharks come in all kinds of colors. Most of the time, their skin color helps them blend in with their surroundings. But, some’sharks that live in the deepest part of the ocean actually have parts that glow in the dark. Most sharks live in salt water, but some can live in fresh water. All sharks are unique, or have different qualities that make them so special. Sharks are actually a type of fish. There are some similarities as well as differences between sharks and typical fish. Shark skeletons are made of cartilage. Fish skeletons are made of bones. Cartilage is the bendy, tough substance in people’s ears and noses. Like other fish, sharks have gills. Gills are how fish breathe. Unlike fish, people use lungs to get oxygen from the air. Fish get oxygen from the water using gills. Water needs to move over the gills so that sharks and fish get enough oxygen. To keep the water moving, most sharks need to swim in water that has a very strong current. Sharks have lots of teeth that are arranged in many rows, rather than in just one row like people. The teeth from the outside row gradually fall out, and teeth from the next row take their place. Some sharks will lose 30,000 teeth in a lifetime! Each species of shark has different kinds of teeth. This is because different sharks eat different kinds of food. Some sharks eat food as small as plankton(浮游生物) while other sharks eat animals as big as sea turtles. Most sharks do not eat very often. Some sharks will go weeks between meals. Sharks are at the top of the ocean food chain, which means that no animal is hunting them for food. This position is very important because sharks keep the other animal populations from growing out of control. This process helps ensure there is diversity, or many types, of life in the oceans. There are more than 400 kinds of sharks around the world.
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if you were to begin a new job tomorrow, you would bring with you some basic strengths and weaknesses. Success or (51) in your work would depend, to some great extent, (52) your ability to use your strengths and weaknesses to the best advantage. Of the utmost importance is your attitude. A person (53) begins a job convinced that he isn’t going to like it or is (54) that he is going to show a weakness which can only harm his Success. On the other hand, a person who is firm in his belief that he is probably as capable (55) doing the work as anyone else and who is willing to make a cheerful attempt at it possesses a certain strength of purpose. The chances are that he will do well. (56) the required skills for a particular job is strength. Lacking those skills is obviously a weakness. A bookkeeper who can’t add or a carpenter who can’t cut a straight line with a saw (57) hopeless eases. This book has been designed to help you capitalize (58) the strength and overcome the (59) that you bring to the job of learning. But in groups to measure your development, you must first (60) stock of somewhere you stand now. As we get further along in the book, we’ll be (61) in some detail with specific processes for developing and strengthening (62) skills. However (63) begin with, you should stop (64) examine your present strengths and weaknesses in three alreas that are critical to your success or failure in school: your (65) , your reading and communication skills, and your study habits.
Shark Facts There are almost 400 different kinds of sharks. Each kind of shark looks different, has a unique diet, and behaves differently. There are sharks in all four oceans of the world. Some sharks are longer than a school bus, while others are so small they can live in fish tanks. Sharks come in all kinds of colors. Most of the time, their skin color helps them blend in with their surroundings. But, some’sharks that live in the deepest part of the ocean actually have parts that glow in the dark. Most sharks live in salt water, but some can live in fresh water. All sharks are unique, or have different qualities that make them so special. Sharks are actually a type of fish. There are some similarities as well as differences between sharks and typical fish. Shark skeletons are made of cartilage. Fish skeletons are made of bones. Cartilage is the bendy, tough substance in people’s ears and noses. Like other fish, sharks have gills. Gills are how fish breathe. Unlike fish, people use lungs to get oxygen from the air. Fish get oxygen from the water using gills. Water needs to move over the gills so that sharks and fish get enough oxygen. To keep the water moving, most sharks need to swim in water that has a very strong current. Sharks have lots of teeth that are arranged in many rows, rather than in just one row like people. The teeth from the outside row gradually fall out, and teeth from the next row take their place. Some sharks will lose 30,000 teeth in a lifetime! Each species of shark has different kinds of teeth. This is because different sharks eat different kinds of food. Some sharks eat food as small as plankton(浮游生物) while other sharks eat animals as big as sea turtles. Most sharks do not eat very often. Some sharks will go weeks between meals. Sharks are at the top of the ocean food chain, which means that no animal is hunting them for food. This position is very important because sharks keep the other animal populations from growing out of control. This process helps ensure there is diversity, or many types, of life in the oceans. Sharks have many teeth arranged in rows.
Tech Addiction" Harms Learning" The study of 267 pupils aged 11 to 18 -Techno Addicts: Young Person Addiction to Technology-was carried out by researchers at Cranfield School of Management. Northampton Business School and academic consultancy AJM Associates. Researchers used a written questionnaire to examine the nature and the volume of mobile phone calls and text messaging as well as computer use including e - mail, instant messaging and accessing social networking sites. They found 62% first used or owned a computer before the age of eight, 80% first used the internet between the ages of five and 10,58% first used a mobile Phone between the ages of eight and 10 and 58% have had access to a social networking sites between the ages of eleven and 13. Over 63% felt addicted to the internet. Over 30% reported spending between one or two hours a day using the internet and 26% said they spent up to six or more hours a day. On average, pupils said they spent between one and two hours on social networking sites each day. Over one in five(20.2% )said they left the phone on in lessons—which is usually forbidden by schools. Over a third (39%) admitted that text shortcuts damaged the quality of their written English, particularly when it came to spelling. And 84% openly admitted copying chunks of information from the internet into their homework or projects on a number of occasions. Poor attention levels Dr Nada Kakabadse from Northampton Business School said modern technology, such as mobile phones and handheld computer games, was having an impact on pupils’ attention levels. "They are hiding these things under the desks so their concentration cannot be equally divided, they ore not focusing on what’s going on in class." Dr Kakabadse said pupils were also getting into a bad habit of plagiarism. "For their homework, instead of reading the book, they go on the internet and lift it. " She also raised concerns about the text - messaging abbreviations to which young people had grown accustomed. "They have invented a new language. This kind of abbreviation they unconsciously bring into their assignments. " "So they will have difficulty communicating with others and making themselves understood. Of course, language should evolve but maybe not so quickly. \ How many pupils are addicted to the internet according to the study
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