Because the mass media     1     so many people, it is a perfect     2     for advertisers. If an advertisement is placed on a popular website or on TV at peak times, a huge number of people will know about the product or service it is advertising. In     3     to making people aware of a product or service, a successful advertisement will also create a desire to buy, thus     4     business. That is why when a company wants to promote a product or service, it often launches a mass media advertising     5    .

    6    , such warnings demand our attention. We need to make sure that we will not fall     7     to AI. We may still think it would be     8     to relax all day and allow     9     machines to do all the work for us — but perhaps we should not be too     10     and rather be careful what we wish for!

The first    1     of friendship is the peace that comes from sharing with friends our joy, sadness, success and failure. Here, friendship has a    2     advantage - happiness takes    3     a greater meaning and a trouble shared becomes a trouble halved!     4    , this kind of openness results    5     a close friendship. With true friends, we feel free to share our joy and sadness in full measure. We know that our friends will both respect our feeling and    6     these moments of closeness. Indeed, the human heart depends on such opportunities for comfort and protection.

A short     1     (航班) takes you into the Amazon rainforest. You can spend 3 days exploring the rainforest with a local guide and enjoying the plants and animals u    2     to the rainforest. You will surely be amazed by your     3     (目的地).

Lang Ping and Michael Jordan are athletes who are m    4     in their field and     5     (树立好榜样) for others. When preparing for the 2015 World Cup, the team that Lang Ping had built was falling apart. Her     6     (determine) was tested, but two weeks later, they were world champions! Michael Jordan’s skills were impressive, which made him become known as “Air Jordan”, the mental s    7     that he showed made him unique. Jordan says that the secret to his success is learning from his f    8    .

I know I’ll have to study harder as a senior high school student and get used to     9     (对……负责) a lot more.

It is not unusual for teenagers of young generation to     10     (addict) to computer games and online world.

Throughout the course of history, it is the morals and v    1    of humanity that makes us human the paragon (模范) of the world.

Think of Dr. Lin Qiaozhi. Unlike the m    2     of girls of her time, she studied hard     3    (admit) to the medical university, and finally became a great woman     4    (know) as the“mother of ten thousand babies”.

Then think of the immigrants who went to America to seek their f    5    during the goldrush. They s    6     down and opened up shops to e    7     a living. They brought their own cultures to the country,     8     (make) it a nation with great cultural d    9    .

Finally, there are scientists and a    10    who are intelligent,     11    (有耐心的) and brave enough to carry on this mission     12    the huge risks.They believe the     13    (explore)of this final f     14     can help them     15    (追求) a better future for mankind.

After arriving at Merzouga, we entered the Sahara in which we saw     1     sand dunes. The sun was     2    , and the sky was     3    . There was not a     4    . The desert seemed completely empty. Before dark, we returned to our     5    . Our car was once     6     the mud during the trip. We saw the     7     mountain in Africa. There were tall     8    , trees and animals like giraffes and elephants on the     9    . Finally, we got out of the car and took our     10     into the hut.

Astronauts’     1     in space is quite different from that on the Earth.

Astronauts usually sleep in     2     and attach themselves to avoid floating around. Astronauts’ main task inside the space station is to conduct     3    . And the most challenging work outside the space station includes     4    , monitoring scientific experiments or repairing the space station, so     5     is necessary. Astronauts eat dried or     6     food, drink through a     7     of plastic and ensure a balanced nutrients by taking pills. Astronauts have to do at least two hours of     8     in space every day because     9     has great bad effects on their body. Astronauts like     10     of the Earth in their leisure time.

Canada is one of the most     1     nations in the world with distinct cultures. The Rocky Mountains are home to high peaks and deep     2    . There are a huge variety of wildlife, national parks and unique     3    . It is a combination of     4     including the earliest settlers crossing the Bering Strait and     5     in some of the eastern provinces. One-fifth of people in Canada are     6    . People can experience different cultures in Canada such as the Chinese cultures, the     7     cultures and even those of Celtic settlers. Canada has been celebrating     8     since 2002. Due to its diversity, Canada has been consistently ranked as one of the     9     countries to live in and visit.