A key part of protecting endangered species is figuring out where they're living.Now researchers say they have found a powerful new tool that could help:vacuuming DNA out of the air. Using environmental DNA,or eDNA,to track species isn't neoteric.For a few years now,researchers have been using DNA in water to track aquatic animals.They've also been able to pick up eDNA from plants floating in the air.But the idea of using eDNA from air to track a large land animal like a rhinoceros or a giraffe still seemed "crazy"to Kristine Bohmann,a researcher at the Globe Institute at the University of Copenhagen in Denmark. Christina Lynggaard is a postdoc in Bohmann's team.Her first job was to figure out what kind of device the team could use

【答案与解析】 21.B考查形容词。Wanda Smith一直想成为一名教师，但现实 生活的艰难意味着梦想被推迟。 22.A考查动词。 23.A 考查动词。她是三个孩子的妈妈，还要照顾自己的妈妈。 24.C考查名词。她直接承担起了家庭责任，在得克萨斯州的布伦 汉姆独立学区做校车监督员和看管人。 25.D 考查名词。她这段时间很辛苦，但她没有让梦想破灭。 26.D 考查动词。 27.B 考查名词。她在日程安排中增加了读夜校。 28.C若查动词。九年后，她顺利毕业了。 29.C 考查形容词。她终于成为一名有资格证书的教师了。 30.D 考查名词。她回到了曾经工作过的地方。

ries,which also includes The Sense of Touch,The Sense of Taste,The Sense of Hearing and The Sense of Sight.Brueghel painted the scenes for the pieces,while Rubens painted the alle- gorical(寓言的)figures.The five works are all on view in the same room at the Prado. "I had a sense that people don't pay enough attention to Brueghel,says Vergara."All I was really trying to do was call attention to the sense of joy these works produce in me,hoping that others will see-and smell-this as well. 8.【典型情境题】Why did the museum cooperate with Gregorio Sola for the exhibition? A.To seek financial assistance.B.To make it more practical. C.To obtain technological suppdt.To develop new household

39.C考查形容词。“流浪汉或许比普通人更爱宠物。” 40.B考查名词。“因为流浪汉就是他的宠物的家。”

opened a park for this purpose,at 15501 Harrowgate Road be hind the Chester Early Childhood Learning Academy,according to Stuart W.Connock Jr.,Chesterfield County Parks and Recreation's assistant director for planning and construction services. The Chesterfield drone park was initiated by Tanner Rush,a student at Virginia Commonwealth University who proposed the idea to county officials.Rush is also the director of a Chester field-based branch of the MultiGP Drone Racing League."With the increased use of drones in commercial applications like deliv- ery,we needed to give hobbyists a space where they can fly safe ly and legally,Rush says. Rush recalls that his own interest in the hobby was born

32.What is the function of the "electrolyzer system"? A.To produce a substance. B.To test chemicals in plants. C.To change compositions of plants. D.To detect plants'amount of water. 33.What can we expect of artificial photosynthesis in the future? A It will take the place of sunlight. B.It may help fight the food crisis. C.It will speed up energy production. D.It can produce food of better quality. 34.What can be inferred from Robert Jinkerson's words? A.Intensive agriculture is becoming popular. B.Agricultural lands should be expanded.

Follow safe,legal driving practices and you're less likely to damage your car. 39 OMore job opportunities A clean driving record is a standard requirement for any job that involves driving,including bus drivers,delivery drivers, truckers,ambulance drivers,etc.40 They'll expect to see a driving record that has no negative marks in recent history. A.What“clean”means may surprise you. B.That means less money spent on repairs. C.However,we're not sure what they mean exactly. D.Most of these jobs will be rigid on their requirements. E.It all depends on who is looking into your driving history. F.Many drivers struggle to keep their driving records free

第二节（共10小题；每小题1.5分，满分15分） 阅读下面短文，在空白处填入1个适当的单词或括号内单词的 正确形式。 When we eat or drink sugary foods,the sugar enters our blood and affects parts of our brain that make us feel good.Then the good feeling goes away, 61 (leave)us wanting more.All 62 (taste)foods do this,but sugar has a particularly strong effect.In this way,it is in fact an addictive drug,one that doc- tors recommend we all cut down on. Our bodies 63 (design)to survive on very little sugar. Early humans often had very little food,so our bodies learned to be very efficient in storing sugar as fat.In this way,we had en- ergy 64 (store)for when there was no food.But today,

Yours sincerely, Li Hua

M:Exactly.Improving it helps you recognize both your feelings and the feelings of others and manage them effectively. W:But how do I improve my EQ? M:Better social awareness would help.Try being more consider- ate by acknowledging your coworkers'emotions,needs and concerns. W:I see.Anything else? M:Keep an eye on people's body language,or just pay attention to their tiny actions,like when they tap their fingers or feet, it usually means they're feeling impatient. W:Makes sense.You know what they say:the eyes are the win dow to the soul. M:Very true.Applying these ideas helps us remain calm,keep