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Four Best Language Exchange Apps
HelloTalk
   HelloTalk is a language exchange application that allows you to talk with others from around the world for free.You can write a brief summary about yourself in your profile（簡介），choose your native language and select the language and level that you're currently learning.Then you're able to search for native language partners from around the world!What sets HelloTalk apart from similar apps is that native speakers can edit your messages and cor-rect your grammar while you chat together.
   Lext Talk
   Lext Talk is an application that allows users to connect with people from around the world.Once your profile is complete，you can select which language you speak and which language you'd like to learn.A very convenient feature that Lext Talk offers is its map.Users can use Lext Talk's map to search for language partners in their areas，or find a partner in a specific region.
   Doongle
   Like the feature of Lext Talk but you have an Android phone？Don't worry，there's a similar app for all Android users too!Doongle allows its users to share voice messages，photos and more.Like Lext Talk，Doongle also has a map feature.Doongle offers a particular group chat feature，where you can talk about English grammar or share tips on how to make a pizza with others.
   Italki
   With italki，you get to choose your teachers based on your interests and goals.You pay per lesson but you get what you pay for.You can choose to take lessons anytime and anywhere to your liking.If you don't know which teacher to choose，don't worry.All teachers will have a video introduction of themselves and you could also judge by looking through previous re-views from students.

（1）What's special about HelloTalk？
B
B

A．It is the best application to learn grammar.
B．Users' errors can be corrected in the message.
C．HelloTalk offers quality lessons at a low price.
D．Users can choose language partners by gender.
（2）Which offers professional guidance to a language learner？
D
D

A．HelloTalk.
B．Lext Talk.
C．Doongle.
D．italki.
（3）What can be inferred from the text？
C
C

A．Doongle doesn't have a map feature.
B．HelloTalk doesn't offer a text chat feature.
C．Lext Talk is not suitable for Android users.
D．italki doesn't offer much detail of teachers.

【考點】科技；應用文．

【答案】B；D；C

【解答】

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發(fā)布：2024/4/20 14:35:0組卷：8引用：5難度：0.5

相似題

1．"There are more people actively learning a language through DuoLingo than in the entire US public school system." says Luis von Ahn，founder of the free language learning app.Since its launch（投放市場） in 2012，more than 30 million people have downloaded（下載）the app，which gamified education and attracted many language learners.
   The growth of technology for educational use has changed the way in which people learn and receive education.This is particularly true for languages，an area in which the explosion of mobile apps and interactive software has provided choices to a range of people who were previously unable to receive foreign language education.
   Von Ahn says that when he founded DuoLingo he decided to find a way for people to learn a language for free.Free use of languages was something he had a personal interest in addressing：he grew up in Guatemala，where he was surrounded by people all trying to learn English，half of whom were failing to do so and a lot of whom could not afford it.
   One of the big changes caused by tech is the change in language learners.Languages have long been connected with the rich people，but now people from less rich backgrounds are finding affordable ways to learn.
   Von Ahn says an unexpected result of DuoLingo being an app is that it's attracting an unlikely type of user.DuoLingo was designed（設計）to be like a game，and what the company has found is that many users aren't even necessarily diehard language fans，they're just looking for an educational way to kill some time.
   "They're still procrastinating from something else，but at least it's somewhat useful." says Von Ahn， "The truth of the matter is that learning a language takes months or years.We have to find a way to keep them interested and that's where the gamification came in."

（1）What can we say about DuoLingo after its launch？

A．It is used by entire US schools.
B．It costs 30 dollars to download.
C．It changes the use of languages.
D．It makes education more enjoyable.
（2）Why does the author mention Von Ahn in paragraph 3？

A．To show his poverty in childhood.
B．To explain why he founded the app.
C．To prove he was interested in the app.
D．To find out how he designed the app.
（3）What change does DuoLingo bring to language learners？

A．They can master a language faster.
B．They become language fans totally.
C．They can learn in a low-cost way.
D．They can now use it to kill some time.
（4）Which of the following can be the best title for the text？

A．Reasons for Learning a Language
B．How to Learn a Language Online
C．The Development of a Language App
D．Mastering a Language with DuoLingo
發(fā)布：2024/10/31 3:30:1組卷：22引用：4難度：0.3
解析
2．    Rice now has its own big data platform，claimed a conference in early April.Led by the China National Rice Research Institute，the platform records data throughout every，stage of rice production，including collection，storage，and analysis.It will also regularly publish reports to improve the service of rice production，providing convenience to farmers.Apart from big data，other technology is aiding agriculture in China in recent years.
    Flying above
    Drones（無人機）play an important role in farming this spring. "Using drones to spread the nutrient solution（營養(yǎng)液）is a lot safer than doing it manually（手動地）， "Shi Zhenhai，a farmer in Henan who is responsible for about 119 hectares of wheat fields said.Shi added that the flying machines greatly improved efficiency.The more advanced drones that the farmer bought recently can be filled with 50 liters of liquid，which can be used to cover about 3.4 hectare farmland.With four drones working at the same time，it only takes three hours to finish spreading the solution over all of Shi's land.
    Monitoring on their own
    A smart glass greenhouse used to grow tomatoes features more than 120 patented technologies.Located in Shandong，the demonstration base covers' about 80，000 square meters but requires very few workers.
    Sensors collect information about the plants，such as the humidity（濕度）of the environment，the condition of sunlight and heat，and whether the room is ventilated（通風）enough. It is then uploaded to a platform to be analyzed.The correct levels of water and fertilizer are supplied to crops by the automatic irrigation system，Robots and other devices are used to pick and transport tomatoes.
    With facilities to store heat，the structure does not use huge amounts of energy in winter，unlike traditional greenhouses. "Growing crops in a controlled environment enables farmers to produce high-quality plants，maintain high food safety standards，and avoid the use of pesticides，" Wang Haiguang at the operations office of the greenhouse said.

（1）How do the drones play a part in farming？

A．Spread the seeds.
B．Work at high altitudes.
C．Improve the working efficiency.
D．Provide early warning in wheat fields.
（2）What does "It" underlined in paragraph 4 refer to？

A．The information.
B．The sensor.
C．The humidity.
D．The robot.
（3）With the help of the advanced technology，farmers can enjoy many benefits EXCEPT

.
A．a(chǎn)pplying big data platform
B．a(chǎn)voiding the use of pesticides
C．producing high-quality plants
D．using huge amounts of energy in winter
（4）Where is the text most likely to come from？

A．A book on eating habits.
B．A magazine about high-tech agriculture.
C．An article on the introduction to drones.
D．An environmental conservation booklet.
發(fā)布：2024/7/27 8:0:9組卷：2引用：1難度：0.5
解析
3．Our solar system might be crazier than we once thought.Scientists say that deep within Uranus（天王星） and Neptune（海王星）it rains diamonds.
   On Earth，diamonds form under extreme heat and pressure.The inside of Uranus and Neptune also has high temperatures and pressures.What's more，the blue planets are largely made up of icy water and gases such as methane（甲烷）.
   So scientists have long believed that deep inside the two planets，the heat and pressure turn the methane into hydrogen（氫）and carbon（碳）.Then diamond rain would form，falling toward the center of the planets.
   But no one could prove that this would really work-until now.In a study published recently in the journal Nature Astronomy，scientists say they were able to create this kind of "diamond rain" in a lab，reported The Guardian.
   Scientists used high-powered lasers to create pairs of shockwaves through a kind of plastic.The plastic is made from hydrogen and carbon，much like methane.The shockwaves created high pressure and heat，like that inside Uranus and Neptune.
   "The experimental time is very short，" Dominik Kraus，lead author of the study，told The Guardian. "That we saw this very clear signature of diamonds was actually very，very surprising."
   The diamonds created in the lab were tiny，only a few nanometers（納米）wide.Scientists believe that diamonds would be much larger within Neptune and Uranus.Then they might slowly sink toward the planet's center because of gravity.

（1）What factors are needed to form diamonds？

A．Icy water and gases.
B．Hydrogen and carbon.
C．Extreme heat and pressure.
D．High-powered lasers.
（2）What does the underlined word mean in the last paragraph？

A．Unsuccessful.
B．Natural.
C．Real.
D．Small.
（3）How did scientists prove the theory of forming diamond？

A．By giving examples.
B．By doing experiments.
C．By explaining statistical data.
D．By stating argument.
（4）What can be referred from the text？

A．There are many high-powered lasers in Neptune and Uranus.
B．Scientists long believe that there are diamonds inside Neptune and Uranus.
C．The shockwaves inside Neptune and Uranus crate high pressure and heat.
D．Deep inside Neptune and Uranus could be full of diamonds.
發(fā)布：2024/9/19 9:0:8組卷：5引用：2難度：0.5
解析

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