The Sahara Desert is the largest desert on the earth. It is about 8,600,000 square kilometers in size.

The desert’s golden sand looks very beautiful.

More than 2,000,000 people live in the Sahara. Some of them move around from place to place with their camels. Others live in towns and cities. The desert is not always hot. There are many mountains in the Sahara, and some of them have snow in winter. In some places, people grow fruit. There are also different animals there, such as snakes, foxes and birds.

Thousands of years ago, the Sahara was not a desert at all. There were many plants and rivers. As the weather changed, it became hot and dry.

请根据短文内容，判断句子正误，正确的选T，错误的选F.

1.The Sahara Desert is the largest desert on the earth.

2.About 20,000,000 people live in the Sahara.

3.The desert is always hot.

4.There are also different animals in the Sahara, such as snakes, foxes and birds.

5.Millions of years ago, the Sahara was not a desert at all.

根据材料内容选择最佳答案

1. think that the firecrackers are very important in our life.

A.Liu Jun B.Lin Man C.Li Qing D.Zhang Qi

2.According to the passage, we can know Lin Man comes from Province.

A.Shandong B.Zhejiang C.Jiangsu D.Guangxi

3.What suggestion does Li Qing give?

A.Setting off firecrackers in certain places. B.Improving firecrackers.

C.Using LED fireworks instead of real ones D.Never setting off firecrackers.

4.What is the advantage of LED fireworks?

A.It is dangerous. B.It makes air pollution.

C.It wastes electricity. D.It is beautiful and safe.

5.From the passage, we know .

A.LED fireworks are dangerous B.Gunpower is safe

C.Firecrackets are safe D.Firecrackers are dangerous

Do you like taking photos when you travel to a new place? Photos are a good way to keep your beautiful memories of a certain place. But you can't simply take photos everywhere.

Many people take photos in theaters, but this is actually not a good thing to do. The copyright（版权）of the shows needs to be protected. And taking photos during a show may also trouble others.

In museums, if there are“No Photos”signs, you should keep your camera off. Even if there are no such signs and you really want to take photos, at least turn off the camera’s flash. The flash can be bad for the antiques（古董）.

If you are going to travel abroad, remember not to take any photos at custom. In many countries you will face heavy punishment if you do it.

Also, when you are visiting a church（教堂）, it’s very impolite to take photos. If you are a fan of street snapping, be careful. Not everyone likes a stranger taking photos of them. Before taking a photo, ask him or her for permission.

Taking photos is not a bad thing, but you don't want to get yourself in trouble by doing it in the wrong place.

根据材料内容选择最佳答案

1.If there are no“No photos”signs and you really want to take photos in museums, at least you should _______.

A.protect the copyright B.turn off the camera’s flash

C.behave well D.ask for permission

2.Do not take photos at customs because _______.

A.you will be punished B.the flash can be bad for the antiques

C.it may trouble others D.it is impolite

3.The underlined word“snapping”in the text means _______.

A.playing B.traveling C.photo-taking D.showing

4.According to the text, you can’t simply take photos in places _______.

A.4 B.5 C.6 D.3

5.When you travel abroad, you can _______.

A.take photos of a stransere without permission B.not take photos everywhere

C.take photos any where D.not turn off the camera’s flash

If you look at the top of your phone, you’ll usually see a little symbol that says 3G or 4G. The G stands for the“generation（代）”of your mobile network. But these symbols will become things of the past after 5G networks fully arrive.

On March 30th,2019, Shanghai vice-mayor（副市长）Wu Qing made the first 5G video call on a Huawei Mate X smart phone, CGTN reported. Shanghai has also become the first city in China to start testing 5G metworks.

About 100 times faster than 4G networks. 5G will let people download and upload data faster than ever before. But 5G won’t just bring faster mobile Internet. People can use it for many other things as well.

For example, 5G will help to make self-driving cars safer. Today’s self-driving test cars have one problem lag（延迟）. When the car“ sees ”an obstacle（障碍物）, it sends the information to a data center and receives instructions. However, it takes time to send and receive information. With this kind of lag, the cars might crash because they don’t receive instructions in time. With 5G, this lag will be great lowered , making the cars safer, according to CNN.

5G could also be used to power the Internet of Things（IoT 物联网）. This refers to a large online network that connects all things and people. Fast Internet speeds will be the key to develop this technology.

The IoT could be used in a lot of ways. For example, with IoT, your refrigerator could automatically place an order online for eggs when it finds that there are no eggs left inside.

根据短文内容,选择最佳答案.

1.In which city was 5G networks tested for the first time?

A.Beijing. B.Shanghai. C.Shenzhen. D.Guangzhou.

2.The writer uses self-driving cars as an example to______________ .

A.explain how self-driving cars work

B.show us how advanced self-driving cars are

C.warn about the possible dangers of self-driving cars

D.explain how 5Gs fast speed can be helpful

3.According to the story, the loT is __________________.

A.a robot that can do housework

B.an online store where you can buy anything

C.a large online network that connects things and people

D.a type of high-tech refrigerator

4.We can infer（推论）from the passage that _______________.

A.5G will be all over China. B.there are no symbols at the top of our phones

C.we can now buy self-driving cars D.5G networks are much faster than 3G and 4G

5.The refrigerator is mentioned to .

A.describe the importance of IoT B.introduce how to use the IoT

C.ercourage people to try the new product D.show 5G will be more powerful

书面表达

2019 年10月1日是中华人民共和国成立70周年，在北京天安门广场举行了盛大的庆祝活动和阅兵仪式。假设你是张华，请你写一封信向你的美国朋友James介绍中国的重要节日——国庆节。

写作要求：1. 文中应包括以上信息，可适当发挥，行文连贯，书写规范。

2. 文章字数在80词左右。开头，结尾已给出，不计入总字数。

3. 文中不得出现涉及考生真实信息的人名，地名或校名等。

Dear James,

___________________________________________________________________________

Yours,

Zhang Hua

Could you please_________ on the light? I am looking for my pen.

A.to turn B.turns C.turn D.turned

Yancheng Nature Reserve is____________.

A.in the east China B.to east of China

C.on the east of China D.in the east of China

—What a nice building! What is it for?

—It _______ a hotel. But I'm not sure.

A.must be B.may be C.can't be D.should be

The physics problems are difficult for them. They can’t _________.

A.work it out B.work out it C.work them out D.work out them

The car _________ the wall and the wall________ at last.

A.crashed into; fell down B.crashed to; fell down

C.crashed to; came down D.crashed into; came down