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1651．That was the way. The old lady looked after us in that way.（用定語(yǔ)從句合并）
發(fā)布：2024/6/27 10:35:59組卷：1引用：2難度：0.61652．With the rapid development of the Internet， more and more teenagers make friends online nowadays． Some people say it's good to do that， while others think it's（1）
（harm）especially to school pupils．
Some consider that making friends online is a modern way to share friendship（2）others． They can express their thoughts （3）（free） to improve social skills and fluency in English． On the contrary， some strongly believe it is（4）waste of time to make friends through online communication and what's worse， those so called "friends" are likely to cheat you after （5）（gain） your trust．
In my opinion（6）the Internet is good or not depends on how we use it． If it（7）（use） properly ， we can communicate with people（8）come from every corner of the world ， and share life experiences． Of course， however， since the Internet was born ， many bad men（9）（make） use of it to do something bad． So we must learn to determine true or false and avoid being hurt．
In conclusion， every coin has two （10）（side）． So does the Internet． If used in a proper way， the Internet has more advantages in seeking friendship．發(fā)布：2024/6/27 10:35:59組卷：93引用：5難度：0.31653．We interviewed each
（個(gè)別的）member of the community．發(fā)布：2024/6/27 10:35:59組卷：17引用：4難度：0.81654．I often feel shy if I'm meeting people
．
如果我第一次見(jiàn)到別人，我常常感到害羞．發(fā)布：2024/6/27 10:35:59組卷：10引用：5難度：0.51655．假定英語(yǔ)課上老師要求同桌之間交換修改作文，請(qǐng)你修改你同桌寫(xiě)的以下作文。文中共有10處語(yǔ)言錯(cuò)誤，每句中最多有兩處。每處錯(cuò)誤僅涉及一個(gè)單詞的增加、刪除或修改。
增加：在缺詞處加一個(gè)漏字符號(hào)（Λ），并在其下面寫(xiě)出該加的詞。
刪除：把多余的詞用斜線（\）劃掉。
修改：在錯(cuò)的詞下劃一橫線，并在該詞下面寫(xiě)出修改后的詞。
注意：1.每處錯(cuò)誤及其修改均僅限一詞；
2.只允許修改10處，多者（從第11處起）不計(jì)分。
It was a fine day!This was the first time that I have come to Beijing.I visited to several places of interest such as the Great Wall and Tiananmen Square.I was amazing by the hard-working people and the country with thousand of years of history.People are very kindly and friendly and I even made some friends there.I was greeted by people who were nice enough to told me about the history of China and by modest students who later practiced speak English with me.China has left me wonderful impression but I look forward to coming back here for my next holiday.發(fā)布：2024/6/27 10:35:59組卷：21引用：1難度：0.61656．The Pharos，the great lighthouse of Alexandria，was one of the Seven Wonders of the Ancient World.It stood on the island of Pharos，in the harbor（港口） of the city of Alexandria.In 280 B.C.，PtolemyⅠSoter，the ruler of Egypt，ordered the building of the lighthouse.Twenty years later，it was finished-the first lighthouse in the world and the tallest building on Earth，besides the Great Pyramid of Egypt.
The Pharos was designed by Sostrates，a Greek architect.Sostrates wanted to leave his name on the base of the lighthouse.But Ptolemy refused，ordering that only his own name appeared on the building.But Sostrates found a way to do thjye.ai.At the base of the Pharos，Sostrates left a message containing his own name.Then he covered it with plaster（建筑石膏） and left Ptolemy's name over it.After many years，the plaster disappeared and people knew the true architect of the lighthouse.
In 1302 and 1323，two strong earthquakes hit Alexandria，damaging the lighthouse.In 1326，it finally fell into the sea.Much of what we know about the lighthouse comes from the writings of Arabs who once visited the Pharos.
The Pharos was about 384 feet tall，the same height as a modern 40-story building.At the top of the lighthouse stood a large statue of Poseidon，the Greek god of the sea.Under it was a beacon，the source of light for the lighthouse.The Pharos used two kinds of beacons.At night，a large fire created the light.During the day，a huge mirror made use of the sunlight to create the light.
It was said that the mirror was also used to set enemy ships on fire as they entered the harbor by directing the sun's rays （光線） at them.While the idea is interesting，it is also clearly impossible.
（1）Why did Sostrates use plaster at the base of the Pharos？
A．To follow Ptolemy's orders.
B．To hide his name left on the base.
C．To protect the base from damage.
D．To make the lighthouse more beautiful.
（2）How long had the Pharos stayed standing？
A．For about 800 years.
B．For about 1，000 years.
C．For about 1，600 years.
D．For about 2，000 years.
（3）What does the underlined word "it" in Paragraph 4 refer to？
A．The lighthouse.
B．The statue.
C．A large fire.
D．A huge mirror.
（4）What's the main purpose of the text？
A．To explain why the Pharos was built.
B．To find more secrets about the Pharos.
C．To offer some basic facts about the Pharos.
D．To introduce the true architect of the Pharos.發(fā)布：2024/6/27 10:35:59組卷：3引用：1難度：0.71657．Social Media Social media can be defined （解釋） as web-based and mobile media that are used for people to interact，connect and communicate with each other.It often involves the creation and sharing of content （writing，pictures，and video） that people make themselves，mostly through the Internet.
（1）The first type involves people getting together to work on a project，for example，Wikipedia.Blogs and micro-blogs （such as Twitter） are another type of social media.There are other websites like YouTube that allow people to share content such as pictures，articles or videos.（2）These sites allow people to stay in touch with friends，make new ones and join communities.Facebook is an example of this type.Many people like to play games on the Internet and，yes，there are social media games as well.These games allow gamers to interact with each other and play with or against other gamers.（3）The final type of social media is websites like Second Life，where people can create avatars （化身） and use and create objects，as if they were in the real world.
Social media are different from traditional media.With social media，many individual people in different places create content.
Another difference is that people who produce content in social media don't need very special skills.（4）It takes only a few minutes to write a twitter post，for example.
（5）But whatever you might think，social media is here to stay.
A.World of Warcraft is a good example.
B.And social media content can be produced much faster.
C.In general，there are six different types of social media.
D.Another type of social media are social networking sites.
E.Some people think social media is good and some think it is bad.
F.In traditional media，people need special skills to produce something.
G.Social media is one of the fastest-growing industries in today's world.發(fā)布：2024/6/27 10:35:59組卷：5引用：1難度：0.51658．How does an ecosystem（生態(tài)系統(tǒng)） work？What makes the populations of different species the way they are？Why are there so many flies and so few wolves？To find an answer，scientists have built mathematical models of food webs，noting who eats whom and how much each one eats.
With such models，scientists have found out some key principles operating in food webs.Most food webs，for instance，consist of many weak links rather than a few strong ones.When a predator（掠食動(dòng)物） always eats huge numbers of a single prey（獵物），the two species are strongly linked；when a predator lives on various species，they are weakly linked.Food webs may be dominated by many weak links because that arrangement is more stable over the long term.If a predator can eat several species，it can survive the extinction of one of them.And if a predator can move on to another species that is easier to find when a prey species becomes rare，the switch allows the original prey to recover.The weak links may thus keep species from driving one another to extinction.
Mathematical models have also revealed that food webs may be unstable，where small changes of top predators can lead to big effects throughout entire ecosystems.In the 1960s，scientists proposed that predators at the top of a food web had a surprising amount of control over the size of populations of other species—including species they did not directly attack.
And unplanned human activities have proved the idea of top-down control by top predators to be true.In the ocean，we fished for top predators such as cod on an industrial scale，while on land，we killed off large predators such as wolves.These actions have greatly affected the ecological balance.
Scientists have built an early-warning system based on mathematical models.Ideally，the system would tell us when to adapt human activities that are pushing an ecosystem toward a breakdown or would even allow us to pull an ecosystem back from the borderline.Prevention is key，scientists say because once ecosystems pass their tipping point（臨界點(diǎn)），it is remarkably difficult for them to return.
（1）What have scientists discovered with the help of mathematical models of food webs？
A．The living habits of species in food webs.
B．The rules governing food webs of the ecosystems.
C．The approaches to studying the species in the ecosystems.
D．The differences between weak and strong links in food webs.
（2）A strong link is found between two species when a predator.
A．has a wide food choice
B．can easily find new prey
C．sticks to one prey species
D．can quickly move to another place
（3）What will happen if the populations of top predators in a food web greatly decline？
A．The prey species they directly attack will die out.
B．The species they indirectly attack will turn into top predators.
C．The living environment of other species will remain unchanged.
D．The populations of other species will experience unexpected changes.
（4）How does an early-warning system help us maintain the ecological balance？
A．By getting illegal practices under control.
B．By stopping us from killing large predators.
C．By bringing the broken-down ecosystems back to normal.
D．By signaling the urgent need for taking preventive action.發(fā)布：2024/6/27 10:35:59組卷：144引用：2難度：0.61659．閱讀下面短文，根據(jù)其內(nèi)容寫(xiě)一篇60詞左右的內(nèi)容概要．
Bamboo is one of the world's most useful plants．For thousands of years，bamboo has been used in many different ways from food to medicine to clothing and in small ways as a building material．
However，bamboo is not often used as a building material in the developed world．A professor at the University of Pittsburgh is trying to change that．The professor and his students are testing the strength of bamboo．They are testing how much pressure or weight it can take before breaking．Kent Harries is a professor at the University of Pittsburgh．Harries says that testing methods for bamboo need to be the same for all．They need to be standardized．Standardizing test methods for bamboo will help to bring the plant into common use．It will also give engineers and builders around the world a dependable standard．
Harries says bamboo is strong in nature．The strength of at least three species of bamboo is similar to steel．Besides its strength，bamboo has other features that make it very useful in building．He says it i s resilient（有彈性的），meaning it keeps its shape and strength even under pressure．
Bamboo also grows quickly．Bamboo that is suitable for construction needs much less resources than wood．The harvest cycle of bamboo is about 3 years．Softwoods such as cedar，pine and spruce have a harvest cycle of about 10 years．And hardwoods that come from flowering plants such as oak and walnut need more than 30 years．
Bamboo is widely used as food for pandas．It is also used for flooring and window covers．However，for building，bamboo is not used much outside is native growing area．This is mostly because of its round shape．But there are other reasons too．People think that bamboo is a low quality building material．發(fā)布：2024/6/27 10:35:59組卷：7引用：3難度：0.51660．讓我們?cè)琰c(diǎn)交練習(xí)以便于老師有時(shí)間改。（so that）
Let's hand in the exercises earlier．發(fā)布：2024/6/27 10:35:59組卷：2引用：4難度：0.7
