【正文】 are made are also very different. This is another reason why people dress differently. Western countries rely on machines to make most of their clothing. Someone living in India can use only hand power to make the clothing he needs. Worldwide differences in customs also lead to differences in clothing. A Mexican farmer wears a straw hat with a brim (帽沿) up. In China, a farmer wears a straw hat with a brim down. Both hats are used to protect the farmers from the sun. Some of these customs have e down through thousands of years. you want to learn about the differences about people in the world, you______ .A．should know the ways to study other landsB．should know the four big reasons given in the passageC．may study the different types of clothing people wearD．may be surprised by the ways people wear hats72. In many Moslem countries, women have to______in public.A．wear more clothes than men B．wear veils to hide their facesC．protect their faces from being hurt D．wear beautiful clothing73. Which of the following is the reason for the differences in clothing?A．Materials used for clothes differ from country to country.B．Cotton is the mon material for clothing.C．Manmade materials are invented to make clothes.D．Most people like silk clothes.74. The third reason for different in clothing is______.A．different materials B．different ways of making clothesC．different styles of dressing D．different religions75. The two examples of wearing hats are given in the last paragraph to show______.A．the effect of customs on dressing style B．the function of wearing straw hatC．the correct way of wearing straw hat D．the long history of some customsPassage FourPressure Cooker(高壓鍋) SafetyWhen you are cooking with a pressure cooker, you should learn a few mon sense (常識) rules:1. Never leave the cooker unwatched when it is in use.2. Add sufficient liquid but never past the remended fill point. Overfilling the cooker may block the vent pipe (排氣孔) and cause the cooker to explode.3. Set the cooking time. Too much time may overcook the food or too much pressure may build up in the cooker. Too little time will lead to undercooked food.4. If you are new to pressure cooking, follow the cooking instructions carefully. Heat and time can either result in a great meal or a ruined one.5. Never try to force a pressure cooker cover open. Allow the cooker to cool or run it under cool water before trying to open the cover.6. Clean the cooker thoroughly after each use. Mild detergent (洗滌劑) and hot water work the best. Do not use stove ash or sand for they may damage the cooker. The gasket (密封圈) is best cleaned in warm soapy water and then dried. Store the gasket in the bottom of the pot. 76. According to the first rule, the user should ________.A．keep the cooker under close watch B．always keep the cooker half fullC．never leave the cooker empty D．never turn off the stove to the second rule, too much liquid in the cooker may result in ________.A．a ruined meal B．undercooked food C．too little pressure D．a blocked vent pipe to the fifth rule, a pressure cooker cover should be opened ________.A．as soon as the cooking is finished B．while it is still on the stove C．with force when it is hot D．after it is cooled down79. According to the instructions, which of the following is TRUE?A．The gasket should be cleaned thoroughly with cold water.B．Mild detergent and