The novel coronavirus pneumonia (NCP) has already made tens of thousands of people sick. Where did the virus come from? Scientists say it probably came from bats.
Bats can carry and transmit more than 60 viruses that can infect humans， Live Science noted. They include the world’ s deadliest viruses，such as Ebola and HIV. Due to their strong immune systems (免疫系统)，bats are able to host these viruses and not get sick. At the same time，the viruses keep developing inside the bats to create new variants (变体). These variants can then infect new hosts，such as other wild animals.
Pangolins (穿山甲)，for example，might be an intermediate host (中间宿主) for NCP，according to a recent study by Chinese scientists. This means that bats might have given the virus to pangolins，with pangolins then spreading it to humans.
Wild animals like snakes，hedgehogs (刺猬) and bamboo rats also carry various viruses. But since they live in the wild，there should be few chances for humans to come into contact with them and get infected—unless the animals are eaten or used to make animal products. When people hunt， buy and eat wild animals， they can introduce viruses to the rest of the population.
But this doesn’t mean that we should kill wild animals. Each species has a role in the eco-system (生态系统) and all of them are important in keeping a natural ecological balance. The lesson we can learn from disease outbreaks is to respect and protect animals and to live in harmony with them instead of hunting，killing，or eating them.
1.Why can bats host many viruses without getting sick?
A.Because these viruses are not deadly.
B.Because the viruses are kept in balance.
C.Because they have strong immune systems.
D.Because they can spread the viruses to other animals.
2.The underlined word“harmony”in the last paragraph probably means .
A.danger B.peace C.pain D.surprise
3.According to the story，what lesson should humans learn?
A.Research more about wild animals. B.Exercise regularly to stay healthy.
C.Stop keeping animals as pets. D.Don’t buy or eat wild animals.
Today we started our new school term. We were very happy to see friends again. But the most exciting of all，the new term is the time to plan new hobbies. It is common in Britain for students to plan new hobbies after the Christmas holidays. Deciding to start something new is a common New Year resolution.
Most schools offer different kinds of hobby classes. Students take them in their free time or after school. You have to pay for some classes and others are free. For example，I once took a free Friday evening gymnastics(体操) class my school offered. But when I wanted to learn how to play the drum，my parents had to pay for the lessons.
The most popular extra classes at my school were piano lessons. We also like playing a role in the drama (戏剧) club. Both classes offered exams students could take. Students with many hobbies sometimes felt more stressed than those without any. But the students with hob-bies left school with many extra skills.
I have not stopped any of the hobbies I began at school. Although sometimes I may feel very tired，there are also some good reasons for me to insist on it. And I have never regretted taking them. My best friend today is someone I met in my gymnastics class. We have the same hobby and we spend time a lot.
1.When a new school term starts，the most exciting thing for students is .
A.to see friends again
B.to plan new hobbies
C.to take different kinds of hobby classes
D.to learn how to play the drum
2.When can the writer learn to play the drum in the hobby class?
A.When a new school term starts. B.After the Christmas holidays.
C.In the free time or after school. D.When the school classes begin.
3.The writer has never regretted taking his hobby classes because .
A.they were all free
B.they didn’t offer exams
C.they didn’t make the writer feel more stressed
D.the writer made his best friend in a hobby class
4.What is the best title for this passage?
A.Different Kinds of Hobbies
B.We Started Our New School Term
C.I Met a Friend in My Gymnastics Class
D.The New Term Is the Time to Plan New Hobbies
Long ago，as people got older，there was something wrong with their teeth and it would be very painful. To avoid a toothache，they had their teeth pulled out. Later people learned that cleaning their teeth was important，but they didn’t have toothpaste (牙膏) at that time. They used lemon juice，salt or other things to clean their teeth.
It was only about 100 years ago that someone finally created a mint (薄荷) cream to clean teeth. Not long after that，the toothpaste tube (管子) was invented，so people could squeeze (挤出) the toothpaste right onto the toothbrush! Tooth brushing became popular during the World War I. The U. S. Army gave brushes and toothpaste to all the soldiers，and they learned to brush teeth twice a day. Back then，toothpaste tubes were made of metal；today they’ re made of soft plastic and are much easier to use!
Today there are plenty of toothpaste choices：lots of colors and flavors (口味) to choose from，and some kinds of toothpaste are made just for children. When you’re choosing a kind of toothpaste，make sure it has fluoride (氟化物). Fluoride makes your teeth strong and healthy. When you brush，you don’t need a lot of toothpaste：just squeeze out a bit.
1.People used to to avoid a toothache.
A.pull out their teeth B.take some medicine
C.drink more water D.eat more vegetables
2.What was NOT used to brush teeth in the past according to the passage?
A.Salt. B.Lemon juice. C.Mint cream. D.Tea.
3.What can we learn from the passage?
A.There is no special toothpaste for children.
B.We should choose toothpaste with fluoride.
C.Toothpaste can’t be made into different flavors.
D.Squeeze out as much as toothpaste when you brush teeth.
I live in Porto. It is a city in the north of Portugal (葡萄牙). It’s the second biggest city in Portugal.
It’s a beautiful city，and it’s great for walking around. There are lots of narrow streets，and it has many churches，museums，and markets. There’s a place called Foz. There are a lot of outdoor restaurants in Foz—people go there at the weekend to sit in the sun，drink coffee，and watch the Atlantic (大西洋).
The weather is very different from the south of Portugal. The winter can be very wet，and it sometimes rains for days. The summer is wonderful—it’ s sunny but not usually too hot，and it’s great for going to the mountains or the beach.
Porto is famous for port wine. The biggest interesting place in Porto is probably the river because there are some beautiful bridges. One of the bridges is designed by Eiffel，and lots of people go on boat trips on the rivers. There’s a festival in the sixth month called Sao Joao every year. Everybody have fun on this day.
The people here are friendly. It’s a working city and it has a real sense of history，and that’s the main reason why I like living here so much.
1.Porto is in Europe.
2.In Foz，there are a lot of churches.
3.The weather is wet in winter in Porto.
4.Sao Joao Festival is in June.
5.The writer likes living in Porto because it is near the Atlantic.
One day,when I was riding a bike,I saw a rider about 300 meters ahead of me. I______ to try to catch up with him. I had about a kilometer to go on the road before turning off.
I started cycling faster and faster and with every block. I got just a little bit______ to him. After a few minutes I was only about 100 meters______ him,so I tried harder.
Finally，I______ with him and passed him. I felt so good and so______. I“beat him”,but he didn’t even know we were racing.
After I passed him,I found that I had______my turn. I had run six blocks(街区) past it and had to turn around and go all the way back.
Isn’t that what happens in life when we race with others，trying to beat them or trying to show that we’ re more ____or more important? We spend our time and______ running after them and we miss out on our own roads.
The______ with unhealthy competitions is that it’s a never-ending cycle. There will al-ways be______ in front of you in one way or another. What you should do is just to run your own race and wish others well.
1.A.agreed B.decided C.refused D.expected
2.A.closer B.farther C.harder D.earlier
3.A.across B.against C.before D.behind
4.A.picked up B.gave up C.caught up D.took up
5.A.active B.proud C.lucky D.tired
6.A.missed B.managed C.remained D.changed
7.A.beautiful B.careful C.helpful D.successful
8.A.energy B.courage C.power D.attention
9.A.difficulty B.experience C.importance D.problem
10.A.somebody B.anybody C.everybody D.nobody
A boy was growing in the orphanage(孤儿院). He often______the question to the or-phanage Dean(院长) sadly, “Such unwanted children like me, why on earth do they live in the world?”The Dean always smiled and______replied.
One day，the Dean brought a stone to the boy and said,“Sell the stone in______market tomorrow. No matter how much money people pay, you’ll never sell it.”The next day, the boy held the stone and squatted(蹲) in the corner of the market. To______surprise，many people found him and were interested in the stone in his hand. The price was higher and higher，but the boy didn’t sell it. When he was back to the orphanage, he reported that to the Dean______.The Dean smiled. Then the Dean asked the boy to take the stone to the gold mar-ket. In the gold market, someone gave ten times______price than it was yesterday. Still the boy didn’t sell it.
In the end，the Dean asked the boy______the stone to the diamond display market. As a result，the value of the stone went up over 10 times again. ______ the boy didn’t sell it. Soon it was spread as“a rare treasure”.The boy was so surprised and asked the Dean______. This time, the Dean didn’t smile. He said to the boy seriously,“The value of life is like this stone. In different situations it will have different______. As long as we value ourselves，the life is valuable. In fact,the value of life depends on your attitude.”
1.A.asked B.asks C.will ask D.has asked
2.A.often B.sometimes C.never D.usually
3.A.a B.an C./ D.the
4.A.he B.his C.him D.himself
5.A.excited B.excitedly C.tired D.tiredly
6.A.high B.higher C.lower D.lowest
7.A.taken B.takes C.taking D.to take
8.A.But B.And C.Or D.So
9.A.how B.when C.what D.why
10.A.meaning B.meanings C.accident D.accidents
