In an emergency, fire alarms are essential tools for protecting people and property. Their main job is to use a loud, obvious sound to warn residents of the presence of fire, smoke, or other hazardous situations. How, though, do fire alarms make this sound? The physics and engineering unde...
It's so loud that I can hardly concentrate on my work.W: Don’t worry, Sam. It's just the fire alarm. They test it every Friday at noon. It keeps us safe, and I like to think of it as a friendly reminder that the weekend is coming....
a siren or other loud alarm noise flashing outdoor lights a telephone auto-dialer The siren and lights serve three functions: They alert occupants and neighbors that someone has broken into the house. They drive the intruder away. They signal to police which house has been broken into. The ...
1. Get out fast! When you hear the loud beep of the smoke alarm, get out of the house. Never hide or take time to grab your belongings or pets.2. Follow your escape plan. After all, you've been practicing!3. Feel a door before you open it. If it is hot, there ma...
Smoke from a fire causes the alarm to go off. The alarm makes a loud sound. The sound tells everyone to leave the house at once.Make escape(逃脱) plans. They should know all the ways out of the house. Part of the plan is to check all the windows to make sure they can be opened...
Smoke from a fire causes the alarm to go off. The alarm makes a loud sound. The sound tells everyone to leave the house at once.Make escape(逃脱) plans. They should know all the ways out of the house.1. Part of the plan is to check all the windows to make sure they can be ...
It’s goodfor a familytolearnhowtopreparefor a fire. Herearesomesuggestions. Put a smokealarminthehouse. 1 Thealarmmakes a loud sound. Thesoundtellseveryonetoleavethehouseatonce. Makeescape (逃脱) plans. Theyshouldknowallthewaysoutofthehouse. 2 Partoftheplanistocheckallthewindowstomakesurethey...
1 Smoke from a fire causes the alarm to go off. The alarm makes a loud sound. The sound tells everyone to leave the house at once. 2 They should know all the ways out of the house. If there is a fire, everyone follows the plan to get out. Part of the plan is to check all ...
When there is a fire, the alarm makes a loud sound.在房子里放一个烟雾报警器。当有火灾时,警报会发出很大的声音。可知说的是烟雾报警器。结合选项,应说声音告诉每个人马上离开家。故选E。 2. 细节推理题。根据上文Make a plan to get off the fire. They should know all the ways out of the ...
Smoke from a fire causes the alarm to go off. The alarm makes a loud sound. The sound tells everyone to leave the house at once. Make escape(逃脱)plans. We should know all the ways out of the house. If there is a fire,everyone follows the plan to get out. Part of the plan is...