viết bài văn về lợi hại của smartphone
viết đoan văn về lợi ích, tác hại của sách điện tử book reader
I.Choose the underlined part that needs correction in each of the following questions:
1) An e-book reader is used to reading electronic books, newspapers or magazines.
A. to B. or magazines C. An D. is
2) My family has moved to London when I was 10 years old.
A. has B. to C. when D. 10 years old
3) Use your laptop wise and it will be your best friend.
A. wise B. and C. will be D. best friend
II. Sentence transformation:
1) We started using the headphones last year.
=>We have___________________________________________
2) It began raining heavily yesterday.
=>It has______________________________________________
Talk about the invention you like best.
Read the passage and choose the best answer:
Wi-Fi is a method for devices such as smartphones to connect wirelessly to the Internet using radio waves. Connecting to the Internet using Wi-Fi requires a hot spot, but is always faster than the 3G cellular networks smartphones can also use to connect, and occasionally faster than 4G. Using Wi-Fi when it's available can also prove to be cheaper and make your phone run more efficiently in the long run than relying on cellular networks.
When you use a Wi-Fi network to access the Internet from your phone, the data usage does not count against your bundled data. Mobile providers often allocate a certain amount of data for free each month and charge you a fee for any data usage beyond this. By connecting via Wi-Fi wherever it is available, you can save your bundled data for situations where you might not be close to any Wi-Fi hotspots.
In many situations, your speed using a strong, dedicated Wi-Fi connection is faster than that of using your mobile network. While the difference might not be that obvious if you are only reading your email or checking out a Web page, it is very noticeable when transferring larger files. Activities such as streaming audio and video benefit from the lower latency that is associated with using a Wi-Fi hotspot. If you need to download large files or stream media to your smartphone in a hurry, it is much better to do so via Wi-Fi.
Battery life is extremely important for smartphones, as you will not be able to connect to the Internet or use certain functions such as the camera flash if your battery is too low. Using Wi-Fi to connect to the Internet drains less battery life than using a mobile network, especially in situations where the cellular coverage fluctuates. Since Wi-Fi is generally faster than using mobile networks, you will also not spend as much time transferring the data, which further decreases battery usage.
Question 22: the following are the advantages of using WI-FI on your smartphone EXPECT that ………
A. it doesn’t need a hotspot to connect all your mobile devices.
B. it is faster than the 3G cellular networks. C. it is cheaper than using the 3g networks.
D. it makes your phone run more efficiently in the long run.
Question 23: By using W-FI, you …………….
A. can you all your bundled data for free B. can use a certain amount of data for free each month
C. may stay under the data capacity allocated by mobile provides.
D. save your bundled data for situations when you use a WI-FI network.
Question 24. A WI-FI connect offers ………….
A. better large files B. faster smartphone C. no need for hurry D. better speeds
Question 25. Using wi-fi offers longer battery life because …………..
A. you will be able to connect to other devices when your battery is low.
B. it requires less time with the same task than using mobile networks
C. the internet harms the battery life so much.
D. it requires so little energy while the cellular coverage fluctuates.
Question 26. The word “drain” in the last paragraph is closest in meaning to ……..
A. improves B. saves C. increase D. reduces
Choose one of the inventions below and prepare a talk to intruduce it to other group members
-e-book reader
-food processor
Giúp mình với mình cảm ơn trước ạk
Nowadays, amid the storming development of high-tech devices such as smartphones or e-book readers, people seem to neglect the existence of certain inventions that date back thousands of years. One of those is the mirror.
People grew a desire to see themselves as they saw their reflections in the surface of water. Around the 600s BC, the first mirrors were made from natural materials such as polished stones. After a while, people started to use bronze, gold and silver to make mirrors. These metals were heavy, so mirrors had very modest sizes. Ruling-class people, especially ladies, used them as a fashionable accessory. Hardly did they go out without a mirror. In the 1st century, the first glass mirrors were invented by the Romans and were made bigger to allow people to look at the whole body. However, not everyone cherished the mirror. Some people were irritated to find themselves ugly looking at the mirror, and there were rumors that what they saw in the mirror were reflections of sins and demons.
Nowadays, despite technological advancement, mirrors still play important roles in various modern-day fields, such as surgery, transport, architecture and so on. In fact, mirrors are utilised in technology and have inspired the inventions of several devices such as cameras or satellites.
Determine whether the following statements are True, False or Not Given. (Xác định những câu sau là Đúng, Sai hay Không có thông tin.) 1.People appreciate inventions that date back a very long time. A,True B, False C,Not Given 2.The images produced by the first mirrors were not as clear as by the surface of water. A,True B,False C,Not Given 3.Only rich people could buy mirrors made from metals. A,True B,False C,Not Given 4.Mirrors from glass were first made by the Romans. A,True B,False C,Not Given 5.Everyone was happy to see themselves in mirrors. A,True B,False C,Not Given 6.Some people believed that mirror reflected negative things. A,True B,False C, Not Given 7.Due to modern technology, mirrors are not applied in many fields these days. A,True B,False C,Not Given 8.When were the first mirrors made? A. In the first century B. In the 600s B.C. C. Four thousand years ago 9.What were the first materials for making mirrors? A. Stones B. Glass C. Metal such as bronze, gold and silver 10.What was TRUE about metal mirrors? A. They were very heavy. B. They were small. C. They were extremely expensive. 11.What was TRUE about glass mirrors? A. They were cheaper than metal mirrors. B. They were not favored because they broke easily. C. They were bigger than metal mirrors. 12.Who used mirrors as a fashion item? A. Girls and women from powerful families B. Girl and women from all families C. Young and unmarried girls