Escaping a fire is a serious matter. Knowing what to do during a fire can save you life. It is important to know the ways you can use and show them to everyone in the family， such as stairways and fire escapes， but not lifts.
From the lower floors of the buildings， escaping through windows is possible， learn the best way of leaving by windows with the least chance of serious injury.
The second floor window is usually not very high from the ground. An average person， hanging by the finger-tips will have a drop of about six feet to the ground. It is about the height of an average man. Of course， it is safer to jump a short way than to stay in a burning building.
Windows are also useful when you are waiting for help. Be sure to keep the door closed. Or smoke and fire may be drawn into the room. Keep your head low at the window to be sure you get fresh air rather than smoke that may leaked（渗） into the room.
On a second or third floor， the best windows for escape are those that open onto a roof. From the roof a person can drop to the ground more safely. Dropping onto cement（水泥） might end in injury. Bushes（灌木丛） and grass can help to break a fall.
根据以上短文内容，然后从每题所给的四个选项中选择最佳选项。
1. It is important to _______.
| A．put out the fire in the burning house |
| B．know the ways to escape the fire |
| C．jump off a burning house |
| D．keep the door closed |
| A．if there are some bushes on the ground |
| B．if you are strong enough |
| C．if you live on a lower floor |
| D．If you have a long rope |
| A．You can escape though stairways. |
| B．You can choose fire escapes. |
| C．Escape from the windows that open onto a roof. |
| D．Use a lift to come down at once. |
| A．you can get fresh air | B．you can call for help |
| C．you can easily jump off | D．you can be seen first |
| A．Escaping from the Windows |
| B．Save Yourself in the Burning House |
| C．Knowledge on Fire |
| D．Waiting for Help |
2 . I fell in love with Yosemite National Park the first time I saw it, when I was 13. My parents took us there for camping. On the way out, I asked them to wait while I ran up to E1 Capitan, a
About 15 years ago I started seeing a lot of
I tried
As a rock-climbing guide, I knew
Each year volunteers come for the cleanup from everywhere. In 2016 alone, 2,945 people picked up 42,330 pounds of trash and
I often hear people
| A．distant | B．huge | C．narrow | D．loose |
| A．immediately | B．finally | C．gradually | D．recently |
| A．imagining | B．painting | C．describing | D．climbing |
| A．garden | B．home | C．lab | D．palace |
| A．material | B．resources | C．waste | D．goods |
| A．beyond | B．against | C．over | D．within |
| A．more | B．most | C．less | D．least |
| A．throwing away | B．picking up | C．breaking down | D．digging out |
| A．kill | B．save | C．wait | D．spend |
| A．satisfied with | B．delighted in | C．tired of | D．used to |
| A．something | B．anything | C．everything | D．nothing |
| A．cleanup | B．party | C．picnic | D．concert |
| A．dropped out | B．showed up | C．looked around | D．called back |
| A．demand | B．receive | C．accomplish | D．overcome |
| A．plan | B．visit | C．contact | D．difference |
| A．crossed | B．measured | C．covered | D．designed |
| A．talk | B．complain | C．argue | D．quarrel |
| A．doing | B．thinking | C．questioning | D．watching |
| A．method | B．explanation | C．example | D．research |
| A．although | B．if | C．when | D．unless |
3 . Last night’s meteor (流星) shower left many people in the community dissatisfied and demanding answers. According to Gabe Rothschild, Emerald Valley’s mayor, people gathered in the suburbs of the city, carrying heavy telescopes, expecting to watch the brightly burning meteors passing through the sky. What they found instead was a sky so brightened by the city’s lights that it darkened the light of the meteors passing overhead.
“My family was so frustrated,” admitted town resident Duane Cosby, “We wanted to make this an unforgettable family outing, but it turned out to be a huge disappointment.”
Astronomers — scientists who study stars and planets — have been complaining about this problem for decades. They say that light pollution prevents them from seeing objects in the sky that they could see quite easily in the past. They call on people and the government to take measures to fight against it.
There is yet a population besides professional and amateur star observers that suffers even more from light pollution. This population consists of birds, bats, frogs, snakes, etc. For example, outdoor lighting severely affects migrating (迁徙的) birds. According to the International Dark-Sky Association, “100 million birds a year throughout North America die in crashes with lighted buildings and towers.”
Countless more animal casualties (伤亡) result from the use of artificial lighting. Clearly, people enjoy the benefits of lighting their evenings. But some scientists think it can be harmful for humans, too. They worry that exposure to light while sleeping can increase a person’s chances of getting cancer.
Emerald Valley is only one community that is becoming aware of the negative effects of light pollution. For years, Flagstaff, Arizona, has enforced lighting regulations in its city in order to assist astronomers at the Lowell Observatory. Similar efforts have been made worldwide, and a movement is underway to remind us to turn off lights when we are not using them, so that other creatures can share the night.
1. It happened last night that _____.| A．the city’s lights affected the meteor watching |
| B．the meteors flew past before being noticed |
| C．the city light show attracted many people |
| D．the meteor watching ended up a social outing |
| A．Meteor showers occur less often than before. |
| B．Their observation equipment is in poor repair. |
| C．Light pollution has remained unsolved for years. |
| D．Their eyesight is failing due to artificial lighting. |
| A．Birds may take other migration paths. |
| B．Animals’ living habits may change suddenly |
| C．Varieties of animals will become sharply reduced |
| D．Animals’ survival is threatened by outdoor lighting. |
| A．lessen the chance of getting cancer |
| B．create an ideal observation condition |
| C．ensure citizens a good sleep at night |
| D．enable all creatures to live in harmony |
| A．Saving wildlife is saving ourselves. |
| B．Great efforts should be made to save energy. |
| C．Human activities should be environmentally friendly. |
| D．New equipment should be introduced for space study.. |
4 . I fell in love with Yosemite National Park the first time I saw it, when I was 13. My parents took us there for camping. On the way out, I asked them to wait while I ran up to E1 Capitan, a
About 15 years ago I started seeing a lot of
I tried
As a rock-climbing guide, I knew
Each year volunteers come for the cleanup from everywhere. In 2007 alone, 2,945 people picked up 42,330 pounds of trash and
I often hear people
| A．distant | B．huge | C．narrow | D．loose |
| A．immediately | B．finally | C．gradually | D．recently |
| A．imagining | B．painting | C．describing | D．climbing |
| A．garden | B．home | C．lab | D．palace |
| A．material | B．resources | C．waste | D．goods |
| A．beyond | B．against | C．over | D．within |
| A．more | B．most | C．less | D．least |
| A．throwing away | B．picking up | C．breaking down | D．digging out |
| A．kill | B．save | C．wait | D．spend |
| A．satisfied with | B．delighted in | C．tired of | D．used to |
| A．something | B．anything | C．everything | D．nothing |
| A．cleanup | B．party | C．picnic | D．concert |
| A．dropped out | B．showed up | C．looked around | D．called back |
| A．demand | B．receive | C．accomplish | D．overcome |
| A．plan | B．visit | C．contact | D．difference |
| A．crossed | B．measured | C．covered | D．designed |
| A．talk | B．complain | C．argue | D．quarrel |
| A．doing | B．thinking | C．questioning | D．watching |
| A．method | B．explanation | C．example | D．research |
| A．although | B．if | C．when | D．unless |
