Q: Article: At night, bats fly through the air, catching hundreds of insects and other small animals. But during the day, they hardly move at all. Instead, bats pass the time hanging upside down from a secret spot. There are a couple of reasons why bats rest this way. First of all, it puts them in a position for takeoff. Unlike birds, bats can't fly into the air from the ground. Their wings don't produce enough lift to take off from a dead stop, and their hind legs are so small and underdeveloped that they can't run to build up the necessary takeoff speed. Instead, they use their front claws to climb to a high spot, and then fall into flight. During the hours when most enemies are active, bats gather where few animals would think to look and most can't reach. This allows them to disappear from the world until night comes again. There's also little competition for these resting spots, as other flying animals don't have the ability to hang upside down. Bats have a unique physiological adaptation that lets them hang around this way without using any energy. For you to hold your fist around an object tight, you contract several muscles in your arm, which are connected to your fingers by tendons ;as one muscle contracts, it pulls a tendon, which pulls one of your fingers closed. A bat's talons close in the same way, except that their tendons are connected only to the upper body, not to a muscle. To hang upside down, a bat pulls its claws open with other muscles. To get the talons to take hold of the surface, the bat simply lets its body relax. The weight of the upper body pulls down on the tendons connected to the talons, causing them to hold tight. Therefore, the bat doesn't have to do anything to hang upside down. Question: What is the passage mainly about? Yes or no, is the answer "How and why bats hang upside down."?
A: No

Q: Article: The world's biggest Internet search engine, Google, has proven once again to be King of the Web. Users can download "Google Wi-Fi" software and then enjoy free Wi-Fi service available in some US cities since last Tuesday. Wi-Fi is short for "Wireless Fidelity" . It allows laptop computers and personal digital assistants to the Internet at high speed by radio signal. A person with a Wi-Fi enabled computer can connect to the Internet when near one of the network's access points. The place covered by one or several access points is called a hotspot. Google has already set up two "hotspots" in the US city of San Francisco which provide a free Wi-Fi service. The Wi-Fi technology even allows users to enjoy a free Internet phone service. Some scientists argue that Wi-Fi may replace mobile phone networks. Wi-Fi is still limited to a few cities, where there are "hotspots". But its capability of sending information has already done better than that of the mobile phone network, even that of 3G(Third Generation Telecommunication Technology). Some scientists have started to call Wi-Fi 4G. In addition to a high speed Internet connection, Wi-Fi has other advantages compared to mobile phones. Wi-Fi is global. The same Wi-Fi system works in different countries around the world. Different from using cell phones, you don't need to change computers to use Internet phones when you go to other places and most importantly, many Internet phones cost you nothing at all. Question: Wi-Fi is not available in cities without _ . Yes or no, is the answer "a hotspot"?
A: No

Q: Article: It's good to make mistakes, and here is why. First of all, mistakes are a clear sign that you are trying new things. It's always good to try new things because when you are trying new things you are growing. If you never try anything new, how can you improve? How can you expand? The simple answer is "You can't". Look around you. With very few exceptions, either everything you see in your physical world or every single detail of every single thing is the result of someone trying something new. Another good thing about mistakes is this: When you are making mistakes, you are learning. Consider this: Edison failed 10,000 times before he perfected the light bulb. When asked how it felt to fail that many times, he said that he hadn't failed 10,000 times, but rather had learned 10,000 things that didn't work. Finally, when you make a mistake you are much closer to success. Why? Because when all is said and done, you will have tried some number of things before you succeeded. Every time you make a mistake you _ one of those things and are one step closer. But this all doesn't mean that you should go ahead without considering the consequences of a mistake. Quite the contrary, when you try something new you have to be willing to set some reasonable limits so that in the event that it doesn't work out the way you want it to, you will be in a position to try again. We all have limited resources in the form of time and money so don't blow them all on one approach to a problem. Realize that it probably won't be perfect the first time and allocate these resources appropriately so you can learn, make corrections, and try it again. Only by accepting and using your mistakes in this way can you make significant advances in your business and your career. There is an old saying that goes, "If you're not making mistakes, you're not trying hard enough." So go forth and make mistakes. And learn. And grow. And prosper . Question: . According to the article, one thing you should pay attention to about making mistakes is _ . Yes or no, is the answer "taking consequences into account"?
A: Yes

Q: Article: The price of gas has been going up. We do not know when it will end. Many people want to know how they can save fuel . The best way to save fuel is to change driving habits. The accelerator , or gas pedal,has a lot to do with how much gas you use.The faster you drive, the more gas you use. Drivers should slow down a bit to save fuel. Driving at a steady speed helps to save much gas you use.Accelerating slowly to get to the speed you want helps save gas, too. The more you drive your car.the more gas you use.Think about the places you need to go before leaving your home. _ ) that you need to do as you can in one trip.Always try to pick the shortest route when going somewhere. Cars that are in good working condition use less fuel. Take care of your car. Make sure the engine is running well and is tuned-up often. Have a mechanic check if something seems wrong. Tires are important, too. Keep the tires inflated properly on a car. It will help the car roll better. If a car's tires are worn, then they should be replaced. Finally,think about using your car less.Walk or ride a bike if you do not have to go far.Carpool or take public transportation when you can.Leaving your car at home really saves gas. Question: Which of the following can help save much oil? Yes or no, is the answer "Drive at a speed that is seldom changed."?
A: Yes