1 . Time flies, but the tracks of time remain in books and museums. This is what made a recent tragedy in Brazil even more terrible.

On Sept.2, a big fire ripped through the National Museum of Brazil. “ Two hundred years of work, research and knowledge were lost, ” Brazilian President Michel Temer wrote on Twitter after the fire. “It's a sad day for all Brazilians.”

Most of the 20 million pieces of history are believed to have been destroyed. Only as little as 10 percent of the collection may have survived, Time reported. Among all the items, there were Egyptian mummies, the bones of uniquely Brazilian creatures such as the long－necked dinosaur Maxakalisaurus, and an 11,500－year－old skull called Luzia, which was considered one of South America's oldest human fossils.

Besides these, Brazil's indigenous(本土的，土著的) knowledge also suffered. The museum housed world－famous collections of indigenous objects, as well as many audio recordings of local languages from all over Brazil. Some of these recordings, now lost, were of languages that are no longer spoken.

“The tragedy this Sunday is a sort of national suicide, a crime against our past and future generations,” Bernard Mello Franco, one of Brazil's best－known columnists, wrote on the O Globo newspaper site.

The cause of the fire is still unknown, as BBC News reported on Sept. 3. After the fire burned out, crowds protested outside the museum to show their anger at the loss of the irreplaceable items of historical value.

According to Emilio Bruna, an ecologist at the University of Florida, museums are living, breathing stores of who we are and where we've come from, and the world around us.

Just as underwater grass floats on the surface if it loses its roots, a nation is lost without its memories. The fire at the National Museum of Brazil teaches the world an important lesson: We should never neglect history.

1. What can be summarized as the main idea of the 3rd and 4th paragraphs?

A．Long history of South America.	B．Remains from the fire.
C．Mysteries to be solved.	D．History and knowledge burned up.

2. What opinion may be shared by Bernard Mello Franco and the protesters?

A．The government is to blame for the tragedy.

B．The museum should be rebuilt

C．The loss can't be made up for.

D．The criminal should be sentenced to death.

3. What does Emilio Bruna compare museums to?

A．Living stores of our past.	B．Underwater grass.
C．The oldest fossils.	D．National suicide.

4. What may be the best title of the passage?

A．Death of a civilization	B．Functions of museums
C．Gone with the fire	D．Brazilians' memories

2 . The mama﹣bear instinct

Ms． Angela McQueen， a math and PE teacher at Mattoon High School， Illinois， has a routine when she's on lunch﹣monitoring duty． She    1     （keep） an eye on the hundreds of students in her charge by walking laps（圈） around the school cafeteria．

In September 2017， McQueen， then   40， had hardly finished one lap    2       a 14﹣year﹣old freshman standing not far from her pulled out a gun． She knew too well that he was going to start shooting．

School employees    3    （train）on how to handle active shooters：Attack their ability    4     （aim）． So with the shooter's finger on the trigger， McQueen rushed to him．    5    （grab） at his arm， she forced the gun into the air， but not    6     he struck one student in the hand and chest and hurt another． As students ran for the exits， McQueen defeated the shooter with help from the school resource officer，    7     disarmed   the student and took him into imprisonment until police arrived minutes later． Afterward， McQueen went outside to give hugs and support to her shaken students．

"It's the mama﹣bear instinct，" she told the local paper． "I don't have kids of my own， but these are still‘    8    ' kids．"

    9     McQueen， a story that has played out tragically at far too many schools across the country had a relatively happy ending． "If it hadn't been for her， the situation would have been a lot different，" Police Chief Jeff Branson said at a news conference．

As one    10     （impress） student told CBS News， "Mr． McQueen is our heroine．"

3 . 听下面一段独白，回答以下小题。
1. Where did the fire probably start?

A．On the first floor.

B．On the second floor.

C．On the third floor.

2. When was the building built?

A．In 1718.

B．In 1782.

C．In 1780.

3. What was the building used as at the time of the fire?

A．A hotel.	B．An old people’s home.
C．A history museum.

4. Who is Andrew Bond?

A．A newspaper reporter.

B．The owner of the building.

C．The head of the fire department.