首先,林冠层就像一把大伞,能够对垂直降雨进行再分配。一部分降水被林冠截留,直接蒸发到大气中;一部分顺着枝叶、树干流到林地,形成树干径流。据统计,我国主要森林生态系统的林冠截留率平均值为11%~34%。
There are many kinds ___21___art forms in China. ___22___ you often see any of them in your life?They help us understand and enjoy the traditional Chinese culture. When theSpring Festival comes, some people often ___23___ the red paper intodifferent art works with scissors.
My arms were shaking and my heart was beating ____19____ when I stood at thestarting line. ____20____the endless runway (跑道), I felt like a boat fighting against the windand rain. I ____21____myself that simply joining in was a victory (胜利) itself.
Excitedly, he went to draw water(抽水), ___15___ he couldn’t pump water no matter how hard hetried. He sat on the ground ___16___.Just at that time, he saw a small bottle with a cork(瓶塞).
Zu Ti was a great man of Jin Dynasty. He was ____16____ for his hard work andgreat achievements. But when he was a child, he was a naughty (顽皮的)boy who showed little ____17____ inreading. As he grew up, Zu Ti ____18____ hedidn’t have enough knowledge.
My mum and dad bought a nice, big turkey a fewdays before Thanksgiving. ___29___was proud of herself as she got it for a good price. ___30___ Thanksgiving, Mum got the turkey out of thefridge.
An unexpected thing happened in the ____11____ of my eleventh year. Thehome I had ____12____inwas burned to the ground in the middle of the night. ____13____ , mymom, dad, grandma, brothers and I escaped(幸免于难).
I’m glad to receive your letter and know yourunforgettable(难忘的)experience.Now I’d like to share mine. Last Friday, I was cleaning my room and found anold photo in a drawer. While I was looking at it, the ___16___ memory of that day came back to me.
Everyone knows how similar chimpanzees (黑猩猩)are to humans. So it’s no surprise that their greetings are also close to ours.The most common ways of greeting between chimpanzees are hand touching andhugging. Sometimes they also kiss each other. Some chimpanzees can even learnsimple sign language.
Raden Roro Hendarti, nearly 50 years old, is alibrarian in Muntang village. She started a “trash library”, hoping to makechildren read more as well as make them realize the importance of environmentprotection. Each weekday, Raden puts all kinds of books on the back of herthree-wheeler (三轮车)and rides to Muntang village. There, children line up to exchange plastic cups,bags and other trash for books from Raden’s mobile library. After finishing theexchange, Raden carries back all the trash.
Remember that it’s better to fail than it’s togive up, and the key is to learn from your failure(失败). But along withdifficulties, there will also be ____18____ wonderful waiting for you.
I often hear some students say English isdifficult, so they can’t learn it well. ___11___ English is very easy for me. I’m good ___12___ it. I’m very glad to tell you ___13___ about how I study English.
Bike-to-Work Day is held every year across North America on thethird Friday of May. It was started by the League of American Bicyclistsin 1956. Its aim is to promote (促进) the bicycle as a serious choice of getting toand from work. In today’s world where global warming is a serious issue, thebicycle is a perfect way of reducing our carbon (碳) footprint.
One night many yearsago, an angry voice woke me up from sleep. It was my drunken (喝醉的) father. Those days, he would always ___11___ home very late. Sometimes, he would also go on to fight with my mom.
FIFA World Cup is one of the biggest sportsevents in the world. It ___11___every 4 years. The first World Cup was in 1930. It has a history of over 90years. During the World Cup, ___12___fans watch the games and cheer for their favorite teams or players.
Dealing with a nosebleed(鼻出血)mightseem simple. But recently, the British RED Cross asked parents with youngchildren how to help a child with a nosebleed. About 65 percent of parents didnot ____11____the correct action to help.
The December day started like any other. Papacame back with his boat full of fish. Mama made breakfast for the family.Seven-year-old Joonas was doing his homework, while his two little brothers ranaround the yard. That day seemed peaceful, but Alejo ____16____ better.
TheChinese knot, a folk art, has a long history. People first made them to recordinformation and send messages before they started to use words. The knots wereused for decoration (装饰) and to express thoughts and feelings in theTang Dynasty. They were later popular in the Ming and Qing dynasties. But thisart wasn’t really accepted by the common people until the Qing Dynasty.
Lastsummer, I was holding the net when Grandpa asked me ____19____ I couldhelp him teach Frank how to play chess. I said no because I wanted to catchfish. Grandpa had been the one who’d taught us how to catch fish, but then the ____20____ made him stay behind.
If youthink you have walked into a library with a ____11____ likethat, you are exactly wrong. ____12____, you’ve entered the workplace of CourtneyHolmes, known as the Storybook Barber (理发师).