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If you look at the top of your phone，you'll usually see a little symbol that says 3 G or 4 G. （1）
E
E
But these symbols will become things of the past after 5 G networks fully arrive.
   On March 30，2019，Shanghai vice mayor Wu Qing made the first 5 G video call on a Huawei Mate X Smartphone.（2）
A
A
About 100 times faster than 4 G networks，5 G will let people download（下載）and upload data（數(shù)據(jù)）faster than ever before.But 5 G won't just bring faster mobile internet.（3）
C
C

   For example，5 G will help to make self-driving cars safer.Today's self-driving test cars have one problem-lag（延遲）.When the car"sees"an obstacle（障礙物），it sends this information to a data center and receives instructions.（4）
D
D
With this kind of lag，the cars might hit each other because they don't receive instructions in time.With 5 G，this lag will be greatly lowered，making the cars safer.
   5 G could also be used to help the internet of things（IOT物聯(lián)網(wǎng)）.IOT is a large online network that connects all things and people.Fast internet speeds will be the key to developing this technology.（5）
F
F
For example，with IOT，your refrigerator could automatically（自動地）place an order online for eggs when it finds that there are no eggs left inside.

A.Shanghai has also become the first city in China to start testing 5 G networks.
B.5 G will help us buy eggs quickly.
C.People can use it for many other things as well.
D.However，it takes time to send and receive this information.
E.The"G"is the"generation（代）"of your mobile network.
F.The IOT could be used in a lot of ways.
G.5 G networks are much faster than 4 G or3 G.

【考點】人與社會．

【答案】E；A；C；D；F

【解答】

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發(fā)布：2024/12/27 6:30:1組卷：25引用：2難度：0.4

相似題

1．Chinatown is the name of an area（地區(qū)）in the middle of London.It is a large Chinese Community（社區(qū)） with a lot of Chinese restaurants，Chinese supermarkets and shops.
    In the 1950s，it was a poor area and everything was very cheap.At the same time，the world rice Market became bad and thousands of farm workers in Hong Kong lost their jobs.They began going to London to look for work.They found jobs in the restaurants in this area.
    These restaurant workers often worked 17 hours a day and had no time to learn English.As more Chinese arrived，more shops and businesses grew up.Women came to join their husbands and children came to join their fajye.airs.The community grew，and Chinatown was born.
    In the 1970s and 1980s，British-born Chinese started to have a better education and this brought economic（經(jīng)濟）success to the area.Many families moved out of Chinatown，and there was more space for businesses.Chinatown soon became a popular place for tourists.
    Now everyone knows about London's Chinatown.During the Chinese New Year，the streets are seen with flags and thousands of Chinese go into the streets.For most time of the year，though，Londoners and tourists go there mainly for the food in the Chinese restaurants.The best restaurants are the ones where the Chinese eat.

（1）Was Chinatown rich or poor in the 1950s？

（2）Who came to London to look for jobs in the 1950s？

（3）Why didn't the restaurant workers have time to learn English？

（4）When did British-born Chinese start to have a better education？

（5）What is the main idea of this passage？

發(fā)布：2024/12/27 18:30:2組卷：7引用：4難度：0.5
解析
2．

many ，with ，careful ，suggest ，list

Do you like eating strawberries？Don't forget to wash them （1）

before eating．According to the US Environmental Working Group （EWG） strawberries tend to have the（2）

pesticides （農(nóng)藥）．
   The EWG also listed other dirty fruits based on pesticide contamination （污染）．Are there any that you like to eat on their（3）

？ "Dirty five"：strawberries，spinach，nectarines，apples and grapes．
   The group（4）

that people can wash these fruits and vegetables under tap water for 30 seconds．This can help to get rid of pesticides．
   The group also listed "clean fruits and vegetables"（5）

the least amount of pesticides．Let's take a look! "Clean five"：avocados，sweet corns，pineapples，cabbages and onions．
發(fā)布：2024/12/27 18:0:2組卷：20引用：2難度：0.6
解析
3．Do you feel nervous when you talk to your parents？Do you easily make them angry？Don't worry. （1）

   Find the common interests between you and your parents.For example，if you and your dad both like playing basketball，you can watch one game together and talk about it.（2）

   Try to start a dinnertime talk with your parents.Ask your parents about their day，and they will open up to you easily.Don't forget that you have to open up to them，too.（3）

Besides，it's also a good idea to share something about the latest movies.Soon all of you will have a good conversation.
   （4）

Eye contact（交流） is necessary.Don't be bored，or they will probably stop talking and walk away. （5）

If you listen patiently，they'll be interested in talking to you.As a result，there will be a warm conversation between you and your parents.
   In a word，it's easy to get along well with your parents if you see them as your friends.

A.Let them know you're listening.
B.Tell them what happened at school.
C.It's important to have a healthy diet.
D.Look at your parents when you talk.
E.Get some training at a parents' school.
F.You can find the conversation will come easily.
G.Here is some advice about how to talk to your parents.
發(fā)布：2024/12/27 19:0:1組卷：75引用：7難度：0.4
解析

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