Read the following article and select the best answer. Article: Not everyonewhoteaches in acollegeor university is a professor. Many are instructors or lecturers. In fact, not even all professors are full professors. Many of them are assistant or associate professors or adjunct professors. So what do all of these different academic titles mean at American colleges and universities? Get ready for a short lecture, especially if you are thinking of a career in higher education. Professors usually need a doctoral degree. But sometimes a school will offer positions to people who have not yet received their doctorate. This person would be called an instructor until the degree has been completed. After that, the instructor could become an assistant professor. Assistant professors do not have tenure. Tenure means a permanent appointment. This goal of greater job security is harder to reach these days. Fewer teaching positions offer the chance for tenure. Teachers and researchers who are hired into positions that do offer it are said to be "on the tenure track." Assistant professor is the first job on this path. Assistant professors generally have five to seven years to gain tenure. During this time, other faculty members study the person's work. If tenure is denied, then the assistant professor usually has a year to find another job. Candidates for tenure may feel great pressure to get research published. "Publish or perish" is the traditional saying. An assistant professor who receives tenure becomes an associate professor. An associate professor may later be appointed a full professor. Assistant, associate and full professors perform many duties. They teach classes. They advise students. And they carry out research. They also serve on committees and take part in other activities. Other faculty members are not expected to do all these jobs. They are not on a tenure track. Instead, they might be in adjunct or visiting positions. A visiting professor has a job at one school but works at another for a period of time. An adjunct professor is also a limited or part-time position, to... Question: In which column of a newspaper can the passage probably appear? - Education - Entertainment - Politics - Sports
Education

Read the following article and select the best answer. Article: Invisible ink has fascinated kids for generations. You might think that it would be difficult to make, but it's not. All you'll need for this experient is some milk; some white paper; a clean cotton swab or small, clean paintbrush; the kitchen stove; and help from an adult. The most difficult part of this mini-project is choosing the message that you'll write with your invisible ink. Maybe you'll want to pretend that you're a spy on a secret mission, writing messages that would lead to big, big trouble if they were discovered. Choose your words carefully. All you need to do is, using the brush of cotton swab, write your message with milk on the paper. Don't use a lot of milk and soak the paper. Use just enough to make a thin coating. Once you've finished writing, ask the adult who's helping you to turn on the kitchen stove to a low heat. Very carefully, using kitchen mitts ,hold the paper about a foot above the warm burner. If you don't see results, you may have to make the burner a little hotter. Do not, however, hold the paper low over the burner. As the paper heats up, your message will become brown and you'll be able to see what was written. You want to know why? It's because chemical compounds in the milk have a low burning point. When the paper gets warm, those compounds will heat up and trun brown, while the paper will be unaffected. You also can try this experiment with other liquids, such as orange juice, lemon juice, vinegar, and apple juice. Just be sure to follow all safety rules and have an adult around to help you. Question: How can you see what is written on the paper? - Soak the paper into water to make it appear. - Wait till the paper is dry enough. - Use some chemical compounds to make it appear. - Hold the paper above the warm burner to make it appear.
Hold the paper above the warm burner to make it appear.

Read the following article and select the best answer. Article: Mike McClure walked into Sarasota Bay for a little fishing on a beautiful day last April. This afternoon, the water was shallow enough at low tide that McClure could easily walk 100 yards offshore and cast his line in any direction. Near sunset, still without a fish, he decided to turn back. Rather than turn to his earlier course, he chose a more direct path toward shore, thinking the bay wouldn't get deeper along the way. Instead, he was trapped. He tried to walk in different directions, but shallower water eluded him. Finally, he decided his safest choice was to head straight for land. "Within about five steps, the water was coming in through the top of the waders ," says McClure. He felt the deadweight of the flooding waders pulling him down and knew that if he didn't get out of them, he would drown. But he failed to kick his way out of the waders. Instead, they pulled him completely below the surface. Back onshore, Eliza Cameron, 19, Loren Niurka Mora, 20, and Caitlin Petro, 20, had been watching McClure fish as they rested on the grass after a long week of classes. They saw McClure go under and then heard him cry, "Help!" The three friends kicked off their shoes and ran into the bay. They were all good swimmers, but all hid a fear that he might pull them down too because they'd have to dive to save him. When they reached him, he'd managed to kick himself out of the waders, but his eyes had partly rolled back. Cameron and Mora each hooked an arm under his shoulders, while Petro supported his back and held his hand. Then the three friends tried their best to tug him towards shore. Finally, they all returned to the shore safely. Question: Mike McClure didn't turn back by his earlier course because_. - he wanted to choose a short course - his earlier course was dangerous - he just wanted to take a risk - he knew where the water was deep
he wanted to choose a short course