Mr Smith made many tests with different animals and the monkey was the cleverest of all the animals. One day Mr Smith put a monkey in a room. He also put some small boxes in it. In one of the boxes there was some food. "How long will it take the monkey to find the food? " Mr Smith said to himself. " Let me wait and see. " He left the room and waited outside. Three minutes later, he put his eye to the keyhole . What did he see? He saw the eye of the monkey. The monkey was on the other side of the door and looked at Mr Smith through the keyhole. Mr Smith made tests with _ . A) different animals B) the monkey only C) all the monkeys D) all of the cleverest animals
A
Trees are useful to man in three important ways: They provide him with wood and other products; they provide him shade;. and they help to prevent droughts and floods. Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important.In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear. This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind the soil, thus preventing it from being washed away easily;but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert. Two thousand years ago,a rich and powerful country cut down its trees to build warships, with which to gain itself an empire .It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation . In many parts of the world, forests slowly disappear because _ . A) many trees have been cut down by man B) man has not paid enough attention to planting trees C) new trees are not looked after properly D) all the above
D
Q: Password strength has been a topic about the Internet lately. I have seen lots of clever methods for generating and remembering strong passwords. Some are better than others, but in my opinion , none are adequate . Here's the problem : it doesn't matter how strong your passwords are if you use the same one on multiple sites. All it takes is for a site to get hacked , like Gawker media, or even Sony did , and now your super-strong password has been stolen , and every site on which you used that password has been accessed . So, the bottom line is that no matter how strong your passwords are , and no matter what clever tricks you use to help you remember them , if you surf the Internet often , the only truly secure password system is what you need . Enter LastPass. It's not the only password manager out there, but I like it the best. You create ONE strong password that you have to memorize and use it to access your LastPass database . The LastPass database is stored online, on LastPass's servers. LastPass recognizes the site you're on and automatically logs you in (after , optionally , asking you to re-enter your master password). LastPass also has automatic form fill and automatic password generation. This means that you can have a different , unique , very strong password for every site you log into , but you only have to remember one master password . It's the best of both worlds. One argument against LastPass is that if their database is attacked , then all of your sites are in danger, and that's true, but given that their entire line of work is keeping that information safe , I'm willing to take that chance. The alternative is rolling dice or picking phrase to create passwords, writing all of them down on a piece of paper or something , and then having to manually type them in when I go to a site . A terrible mess. There is a free version of LastPass , with additional features unlocked if you pay $ 12 for a year's subscription . ----Joshua Bardwell Joshua Bardwell writes the passage to _ . A) share his experience B) introduce a product of good quality C) advertise his product D) teach how to use a new product
A: B
(Q).
Emotional eating is when people use food as a way to deal with feelings instead of to satisfy hunger. We've all been there, finishing a whole bag of chips out of boredom or eating cookie after cookie while _ for a big test. But when done a lot -- especially without realizing it -- emotional eating can affect weight, health, and overall well-being. Not many of us make the connection between eating and our feelings. But understanding what drives emotional eating can help people take steps to change it. One of the biggest myths about emotional eating is that it's prompted by negative feelings. Yes, people often turn to food when they're stressed out, lonely, sad, anxious, or bored. But emotional eating can be linked to positive feelings too, like the romance of sharing dessert on Valentine's Day or the celebration of a holiday feast. Sometimes emotional eating is tied to major life events, like a death or a divorce. More often, though, it's the countless little daily stresses that cause someone to seek comfort or distraction in food. Emotional eating patterns can be learned: A child who is given candy after a big achievement may grow up using candy as a reward for a job well done. A kid who is given cookies as a way to stop crying may learn to link cookies with comfort. We're all emotional eaters to some extent. But for some people, emotional eating can be a real problem, causing serious weight gain or cycles of binging and purging. The trouble with emotional eating (apart from the health issues) is that once the pleasure of eating is gone, the feelings that cause it remain. And you often may feel worse about eating the amount or type of food you did. That's why it helps to know the differences between physical hunger and emotional hunger. Next time you reach for a snack, check in and see which type of hunger is driving it. The passage is mainly about _ . A) what emotional eating is and its harm B) the differences between physical hunger and emotional hunger C) how to have a healthy diet D) the relationship between eating and feelings
(A).
A