试试看你能找出文章中的主题句吗？The panda is a popular animal. Stories about the panda in the Washington Zoo are always front page news and important features on television newscast. Stuffed pandas are among the most popular toys for children, and panda postcards are always in demand in zoo gift shops.AnnealingAnnealing is a way of making metal softer by heating it and then letting it cool very slowly. If metal is heated and then cooled very quickly, for example by dipping (浸) it in water, it will be very hard but also very brittle-that is, it will break easily. Metal that has been annealed is soft but does not break as easily. It is possible to make metal as hard or as soft as it is wished, by annealing it. The metal is heated, and allowed to cool slowly for a ce rtain length of time. The longer the heated metal takes to cool slowly, the softer it becomes. Annealing can also be used on other material, such as glass. 1. Why do people put hot metal in water?A. To make it hard. B. To make it soft.C. To make it cool. D. To make it brittle.2. In annealing, the required hardness of metal depends on _.A. the quantity of water used B. the temperature of the metalC. the softness of the metal D. the timing of the operation3. As suggested by the text, how can glass be made less brittle?A. It can be heated and then cooled quickly.B. It can be cooled and then heated slowly.C. It can be heated and then cooled slowly. D. It can be cooled and then heated quickly.If you dont want people to know too much about you，then you had better keep your fridge contents secret according to a British market research document released last week Researchers peered (凝视)into the fridges of 400 people in Britain and compared the contents with the owners lifestylesThey claim to be able to classify the nations people by fridge contents They say those people can be separated into five categories：nutrition nerds (no social sense)，food faddiest (whatevers in style)，martyr mums，fast food fanatics and restaurant regulars Nutrition nerds care much about what they put into their bodiesTheir fridges are stocked with fruit，vegetables and healthy meat People in this category tend to be highly organized and usually work in law or accountancy. The vast majority is single, but if they have a partner, that person will be similar. A fridge full of vitaminsenriched juices implies its owner works in media or fashionThey tend not to eat the foods they buyKnown as the food faddies，they just want to be seen as purchasing the latest important things A fridge filled with everything from steak to frozen fish suggests the martyr mumHer fridge tends to be stocked with every kind of product，except what she herself would wantThis fridge hints at difficulty balancing family and work lifeFast food fanatics always buy mineral water for soda pop；the nearest they will get to fresh fruit is tomato sauceTheir fridges hint at someone who works hard and plays hardAlso，someone who is not into long term planning Finally，a fridge filled with nothing more than a bottle of white wine and some sparkling mineral water implies an owner who is single，lives in a big city and enjoys the finer things in lifeThe fridge is empty because this person regularly eats in restaurants1We can know from the first two paragraphs that_. Asome researchers are fond of staring at other peoples fridges Bpeople dons want others to know about their secrets Cthe food you put in the fridge has something to do with your personality Dthere are mainly five kinds of lifestyles among British people 2According to the passage，people who belong to food faddies_. Adont care much about money when buying things Bwill try their best to stay healthyCoften stay up late to finish their job Dprefer to ask others about what to do next3What will those who often dine out put in the fridge? AAll kinds of food they like BOnly something to drink CFruit，vegetables and meat DFood rich in vitamins4What might be the most suitable title for the text? AKeep your fridge a secret BYou are whatS in your fridge CWhat to put in the fridge? DBe careful about your fridge猜词秀1.通过因果关系猜词.通过因果关系猜词，首先是找出生词与上下文之间的逻辑关系，然后才能猜词。 (如because，as，since，for，so，thus，as a result，of course，therefore等)表示前因后果。例如： You shouldnt have blamed him for that，for it wasnt his fault.2.通过同义词和反义词的关系猜词.一是要看由and或or连接的同义词词组，如happy and gay，即使我们不认识gay这个词，也可以知道它是愉快的意思；二是看在进一步解释的过程中使用的同义词如Man has known something about the planets Venus，Mars，and Jupiter with the help of spaceships.通过反义词猜词，一是看表转折关系的连词或副词，如but，while，however等；二是看与not搭配的或表示否定意义的词语如：He is so homely，not at all as handsome as his brother. 3.通过构词法猜词 4.通过定义或释义关系来推测词义 例如：But sometimes，no rain falls for a long，long time. Then there is a dry period，or drought. 5.通过句法功能来推测词义 例如：Bananas，orange