Passage 4

Pressure Cooker (高压锅) Safety

When you are cooking with a pressure cooker, you should learn a few common sense (常识) rules.
1. Never leave the cooker unwatched when it is in use.
2. Add never past the recommended fill point. Overfilling the cooker may block the vent pipe (排气孔) and cause the cooker to explode.
3. Set the cooker 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 after each use. Mild detergent (洗涤剂) 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.

单选题

According to the first rule, the user should ______.

A、
keep the cooker under close watch
B、
always keep the cooker half full
C、
never leave the cooker empty
D、
never turn off the stove

单选题

According 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

【正确答案】 D

【答案解析】

题干大意是：根据第二条规则，锅内的水太多会导致_ _。根据文中第二条规则的第二句"Overfilling the cooker may block the vent pipe…."可知，水太多会阻塞排气孔，引起爆炸。故选D。

单选题

According to the fifth rule, a pressure cooker cover should be opened ______.

A、
as soon as the cook is finished
B、
while it is still on the stove
C、
with force when it is hot
D、
after it is cooled down

【正确答案】 D

【答案解析】

题干大意是：根据第五条规则，高压锅盖应该在______时打开。根据文中第五条规则的第二句"Allow the cooker to cool or run it under cool water..."可知，必须等高压锅冷却后才能打开锅盖。故选D。

单选题

According to the instructions, which of the following is TRUE?______

A、
The gasket should be cleaned with cold water.
B、
Mild detergent and hot water can best clean the cooker.
C、
Soapy water will often damage the cooker.
D、
Sand can be used to clean the cooker.

【正确答案】 B

【答案解析】

题干大意是：根据使用说明，下面哪一项叙述是正确的?根据文中第六条规则的第二句可知，用热水加温和型的清洗剂洗涤效果最佳，所以选项B正确。根据该条规则第三句可知，不能用炉灰或沙子清洗高压锅，所以D项错误。根据该条规则倒数第二句可知，密封圈应用温肥皂水清洗并晾干，所以A、C两项错误。故选B。

单选题

Which of the following operations may be dangerous?______

A、
Overfilling the cooker with food and water.
B、
Cleaning the cooker with detergent.
C、
Cooling the cooker with cold water.
D、
Setting too little cooking time.

【正确答案】 A

【答案解析】

题干大意是：下面哪一项操作可能是危险的?通读全文可知，选项A(在锅内放过多的水和食物)在文章第二条规则中有体现，这可能会引起爆炸，所以是危险的。而选项B、C、D所述的内容不会造成危险。故选A。