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801．Honey can be used to measure air pollution，according to a new study from researchers at the University of British Columbia's Pacific Centre for Isotopic and Geochemical Research （PCIGR）.
The research，which was recently published in Nature Sustainability，drew on a survey of urban beehives（蜂房） around Vancouver that contained small levels of lead，according to The New York Times.Using beehives to measure pollutants could be a cost-effective way to monitor what is in the air.
"The good news is that the chemical composition of honey in Vancouver reflects its environment and is extremely clean，" the study's lead author Kate E.Smith told the school's website. "We also found that the concentration of elements increased the closer you got to downtown Vancouver，and that the lead largely came from man-made sources."
The Vancouver area honey showed levels that were below the global average for things like lead，and the University of British Columbia website said someone would "have to consume more than 600 grams，or two cups，of honey every day to exceed tolerable levels."
Hives for Humanity，a nonprofit in Vancouver，started the study when it asked a professor at the University of British Columbia to look at honey for pollutants.Through the honey samples alone，Smith said the researchers could find higher concentrations of lead in areas with heavy traffic or industrial activity.Researchers also noted that the lead wasn't traceable to any local sources，which led them to think that large ships entering Vancouver from Asia could be the source of the pollutants.
"One of the exciting parts of this study is that it bridges science with community interests，" Smith told the school's website. "Honey sampling can easily be performed by citizen scientists in other urban centers，even if they lack other environmental monitoring skills."
（1）Using beehives to measure pollutants could.
A．be an efficient method to see what is in the air
B．keep the environment from being polluted
C．monitor what happened to the air
D．cost a large amount of money
（2）What can we know from Kate E.Smith's words？
A．Downtown Vancouver is pretty clean.
B．The lead comes from man-made product.
C．The environment of Vancouver is not bad.
D．Human is responsible for the concentration of lead.
（3）What can we infer from the fifth paragraph？
A．The problem of lead is easy to settle.
B．Ships from Asia are related to the pollutants.
C．Honey can be used to reveal lead and other pollutants.
D．Heavy traffic and industrial activity produce more lead.
（4）What's the best title of the passage？
A．The Importance of Honey
B．Environmental Monitoring Skills
C．Honey--Measure Lead and Pollution
D．How to Look at Honey for Pollutants發(fā)布：2024/5/23 20:38:36組卷：4引用：1難度：0.5802．Being able to work with children is one of the greatest
（satisfy）of this job.發(fā)布：2024/5/23 20:38:36組卷：1引用：1難度：0.7803．No matter how ordinary a job is，it plays a part in society and therefore
（值得） our due respect.發(fā)布：2024/5/23 20:38:36組卷：1引用：1難度：0.7804．When I was in middle school，I told my parents the only thing I wanted for New Year was a suitcase.
You may think upon reading，that we were a family who traveled regularly.We weren't.The only true family vacation we took when I was a kid，was when my parents packed up my brother and I and drove from Maine to Florida.I was 4 years old and when I try to think back on this time，only vague（模糊的）photos surface.
Though our spring breaks were not filled with trips to Disney，I do credit the women in my family with inspiring my love for travel.
Sometime after the Florida trip，my mother and her mother （Nana），took my brother and me to Arizona.Again，this trip has little influence on my memory.
Way before cellphones existed，somehow，Nana and I got separated from my mom and brother.We searched a bit but couldn't find them.
So we did what anyone would do when pressed for time and，actually lost.We got ice cream.I'm not sure if it was because of the ice cream，but at that point，any fear I had died down.My mom remembers finding "someone in a fancy jacket" and having us called，but Nana and I didn't hear it over the passing chatter and shoes clicking（發(fā)出咔嗒聲） against the flojye.ai.Or again，maybe it was because of the ice cream.By chance，as Nana and I stood there eating our ice cream，the responsible members of our party found us.
Nana hardly ever traveled；she didn't have the traveler's instinct（本能） that comes with navigating crowds.My mom wasn't happy when she found us；actually，she was really frightened.Now，we laugh at the memory as if there was never any backlash（強(qiáng)烈反應(yīng)）of "what-if".
（1）What does the author think of her trip to Florida？
A．It cost her a lot.
B．It made her exhausted.
C．It brings her sweet memories.
D．It leaves little impression on her.
（2）What can we learn about the author？
A．She loves traveling because of her mum and Nana.
B．She enjoys ice cream better than anything else.
C．She has traveled to many places.
D．She has a terrible memory.
（3）What can be inferred from the last paragraph？
A．The mother was excited to find her mother and daughter.
B．The author could have found her way back easily.
C．The grandmother had a good sense of direction.
D．The family argued about the separation.發(fā)布：2024/5/23 20:38:36組卷：10引用：1難度：0.5805．Have you seen people who take pictures of food for more than 10 minutes before eating？My friend Chen is such an example.Every time we went to a restaurant，she would not take a bite until all the dishes we（1）
were on the table.Then，she would spend five minutes in（2）the dishes in a seemingly random but in fact（3）order.Then the most important part：taking pictures.After that，she would choose one of the（4）and click in the filter（濾鏡）app.The food eventually looked 10 times more delicious than it really was，but we had no（5）to really enjoy it-it all went cold.Actually Chen's real life is much less elegant.For example，she hates to wash the dishes，so she leaves them in the sink for days.
Many people care too much about others' opinions and try too hard to（6）others.They find it hard to be（7）and to accept themselves，and thus they are afraid to show their（8）life on social media.What they are trying to prove is（9）what they lack in reality.But this will not bring any（10）to reality，as they still（11）the same old pattern of life.
If they really want an elegant life，they should put more（12）into achieving it（13）fabricating（偽造）it.Being more confident，（14）themselves and trying their best to be better are much more meaningful than（15）their life on social media.（1） A．ordered B．served C．offered D．prepared （2） A．cooking B．washing C．setting D．collecting （3） A．messy B．a(chǎn)rranged C．casual D．correct （4） A．dishes B．restaurants C．pictures D．tables （5） A．chance B．choice C．excuse D．reason （6） A．comfort B．please C．inspire D．discourage （7） A．independent B．generous C．responsible D．confident （8） A．secret B．real C．peaceful D．healthy （9） A．rarely B．hardly C．exactly D．nearly （10） A．difficulty B．change C．guidance D．harm （11） A．question B．dislike C．doubt D．follow （12） A．effort B．a(chǎn)mbitions C．feelings D．money （13） A．other than B．more than C．rather than D．less than （14） A．identifying B．a(chǎn)ccepting C．persuading D．a(chǎn)musing （15） A．simplifying B．ruining C．beautifying D．worsening 發(fā)布：2024/5/23 20:38:36組卷：6引用：1難度：0.5806．構(gòu)成…的基礎(chǔ)
發(fā)布：2024/5/23 20:38:36組卷：1引用：1難度：0.7807．joint n．
adj.發(fā)布：2024/5/23 20:38:36組卷：0引用：3難度：0.7808．a narrow opening in the
圍欄上的狹窄出口發(fā)布：2024/5/23 20:38:36組卷：2引用：1難度：0.3809．它們對主人忠心耿耿，甚至理解你正試圖告訴它們的事。
Theytheir masters，and they even understandthem.發(fā)布：2024/5/23 20:38:36組卷：1引用：2難度：0.4810．My
（對手）was the same age and height as myself.發(fā)布：2024/5/23 20:38:36組卷：2引用：1難度：0.7
