Take a Dictionary with YouIf you don't use a dictionary, what should you do instead? The first thing you can do is trying to guess what the word means. Often the（41）_____（surround） context gives a very clear idea of the meaning of the word. Even if you can't work out the meaning（42）_____ （exact）, you may be（43）_____ （ability） to get a （44）_____ （vagueness） idea, enough to enable you to continue reading.Sometimes it is（45）_____ （possible） to guess the meaning of a word from the context and then you will have to decide whether the word is（46）_____ （importance） enough to make it worthwhile（47）_____ （stop） and looking it up in a dictionary, or whether you can just pass it by. Many times in your reading, you will come across words which you don't know, but which do not prevent you from understanding all the main points of the text. You can make your dictionary use much more（48）_____ （ efficiency） if you only look up the words which are（49）_____ （necessity） to understand the text, and this means that you must develop the skill to（50）_____ （decision）whether the words are worth looking up.50_____.

假如你是一名大学老师，你的学生王刚想要去一家公司上班，请用英语为他写一封120词左右的推荐信。

Most of us today recognize that _____1_____ pollution has been a greatly serious problem. Lots of plants trees corps are destroyed by bad air. Many fish die of poisonous water. _____2____ of people die from eating _____3____ fish or breathing in gas. Therefore, environmental pollution should be _____4_____ for these diseases that are disabling, or bringing death not only to human beings, but also to wild life.From above, we can find that the reasons why environment are polluted more and more _____5____ are as follows. The primary reason, I think, is the reason of harmful substances into environment. For example, to prevent insects, farmers make use of great ____6____ of insecticides, so as to have bumper harvests. However, they pollute air, water and land. Second, the gas coming from the car engines and _____7____ also make environment polluted badly. The third reason ____8_____ is the result of a growing population in the world. Everyday, so much litter and waste are poured out from houses, also pollute the environment. The significance for controlling pollution noted that it's high time that more_____9_____ measures should be taken. Therefore, new laws should be passed to limit the amount of pollutants from factories. Moreover, in the households, there is an obvious need to _____10____ litter and waste. Let's make our good efforts, and the world will be a safer place to live for usA. effectiveB. actuallyC. passedD. factoriesE. seriouslyF. environmentalG. poisonedH. reduceI. thousandsJ. responsibleK. wasteL. amounts.

The computer is a ____1___（wonder） machine. It is the most important ____2____（invent）in many years. Today it is used a great deal in _____3___（vary）fields. Especially, it is____4___（use）in automatic control and data processing. And now it is finding its way into the home. Computer plays an important role in our life. They can do most of things people can do. Theycan give you information on _____5____（buy）and selling things, provide you with ____6_ （suggest）of how to deal with certain illness and how to solve the problems you are ____7____（face）with. There is no doubt that people can live much_____8____（easy） with the help of the computer. However, many _____9______ （science） don't think that computers will replace us ____10___（complete） . No matter how clever they may become, computer are no more than an extension of our human brains.1. ___.

The computer is a ____1___（wonder） machine. It is the most important ____2____（invent）in many years. Today it is used a great deal in _____3___（vary）fields. Especially, it is____4___（use）in automatic control and data processing. And now it is finding its way into the home. Computer plays an important role in our life. They can do most of things people can do. Theycan give you information on _____5____（buy）and selling things, provide you with ____6_ （suggest）of how to deal with certain illness and how to solve the problems you are ____7____（face）with. There is no doubt that people can live much_____8____（easy） with the help of the computer. However, many _____9______ （science） don't think that computers will replace us ____10___（complete） . No matter how clever they may become, computer are no more than an extension of our human brains.2. ___.

The computer is a ____1___（wonder） machine. It is the most important ____2____（invent）in many years. Today it is used a great deal in _____3___（vary）fields. Especially, it is____4___（use）in automatic control and data processing. And now it is finding its way into the home. Computer plays an important role in our life. They can do most of things people can do. Theycan give you information on _____5____（buy）and selling things, provide you with ____6_ （suggest）of how to deal with certain illness and how to solve the problems you are ____7____（face）with. There is no doubt that people can live much_____8____（easy） with the help of the computer. However, many _____9______ （science） don't think that computers will replace us ____10___（complete） . No matter how clever they may become, computer are no more than an extension of our human brains.3. ___.

The computer is a ____1___（wonder） machine. It is the most important ____2____（invent）in many years. Today it is used a great deal in _____3___（vary）fields. Especially, it is____4___（use）in automatic control and data processing. And now it is finding its way into the home. Computer plays an important role in our life. They can do most of things people can do. Theycan give you information on _____5____（buy）and selling things, provide you with ____6_ （suggest）of how to deal with certain illness and how to solve the problems you are ____7____（face）with. There is no doubt that people can live much_____8____（easy） with the help of the computer. However, many _____9______ （science） don't think that computers will replace us ____10___（complete） . No matter how clever they may become, computer are no more than an extension of our human brains.4. ___.

The computer is a ____1___（wonder） machine. It is the most important ____2____（invent）in many years. Today it is used a great deal in _____3___（vary）fields. Especially, it is____4___（use）in automatic control and data processing. And now it is finding its way into the home. Computer plays an important role in our life. They can do most of things people can do. Theycan give you information on _____5____（buy）and selling things, provide you with ____6_ （suggest）of how to deal with certain illness and how to solve the problems you are ____7____（face）with. There is no doubt that people can live much_____8____（easy） with the help of the computer. However, many _____9______ （science） don't think that computers will replace us ____10___（complete） . No matter how clever they may become, computer are no more than an extension of our human brains.5. ___.

The computer is a ____1___（wonder） machine. It is the most important ____2____（invent）in many years. Today it is used a great deal in _____3___（vary）fields. Especially, it is____4___（use）in automatic control and data processing. And now it is finding its way into the home. Computer plays an important role in our life. They can do most of things people can do. Theycan give you information on _____5____（buy）and selling things, provide you with ____6_ （suggest）of how to deal with certain illness and how to solve the problems you are ____7____（face）with. There is no doubt that people can live much_____8____（easy） with the help of the computer. However, many _____9______ （science） don't think that computers will replace us ____10___（complete） . No matter how clever they may become, computer are no more than an extension of our human brains.6. ___.

The computer is a ____1___（wonder） machine. It is the most important ____2____（invent）in many years. Today it is used a great deal in _____3___（vary）fields. Especially, it is____4___（use）in automatic control and data processing. And now it is finding its way into the home. Computer plays an important role in our life. They can do most of things people can do. Theycan give you information on _____5____（buy）and selling things, provide you with ____6_ （suggest）of how to deal with certain illness and how to solve the problems you are ____7____（face）with. There is no doubt that people can live much_____8____（easy） with the help of the computer. However, many _____9______ （science） don't think that computers will replace us ____10___（complete） . No matter how clever they may become, computer are no more than an extension of our human brains.7. ___.