My mother was telling me about how she and her family got their first television when she was a teenager. Of course it was black and white. She said she only watch it at night. When I was young we had only about 3 or 4 different channels. My bothers ,my sisters and I would sometimes fight about which channel to watch .But we usually enjoyed the same shows.
Nowadays we can get hundreds of channels on TV. I can’t believe it! There are channels with old movies, cooking ,fishing and so on. It’s amazing! There is a channel for everything. I wonder how much my bothers, my sisters and I would fight if we had hundreds of channels when I was a child. Of course we had only one television set.
These days I notice families with 2 or 3 or more television sets in their homes. I guess it stops people from arguing over which channel to choose from .
1.In those days, what kind of television sets did people only have? ______
A.Black and white ones. B.Colors Ones.
C.All kinds of television sets. D.High-definition televisions
2.My mother watched TV ________when she was young.
A.in the morning B.in the afternoon C.at night D.on the weekend
3.Nowadays,how many channels can we get on TV? ______
A.3 or 4 different channels. B.Only once channel
C.Hundreds of channels. D.two channels
4.Which of the following in NOT true ? _______
A.My bother ,my sisters and I would sometimes fight about which channel to watch when I was a child.
B.These days, there is only one channel with old movies, cooking and fishing.
C.People have many channels to choose from now
D.Nowadays we can get hundreds of channels on TV.
假定你是李华，你的好友Chris在暑假期间痴迷于网络直播，经常花很多时间观看各种节目，请根据以下要点提示，给Chris 写一封信：
（1）分析网络直播受欢迎的原因；
（2）阐述过度观看的危害；
（3）提出合理建议。
注意:1.词数100左右；
2.可以适当增加细节，以使行文连贯；
3.参考词汇：网络直播webcast 直播间 live studio 过度观看excessive viewing
Dear Chris
I’m really worried about your present situation where
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
根据汉语或首字母提示，在下列句子空白处填入正确的单词。
1.Illegal hunting will put those rare animals in danger and break the b_________ of ecosystem.
2.This article has put forward a new t_________ to explain the causes of COVID-19.
3.In the press conference today, the public just want to know how the government a_________ for the fact that the unemployment is still rising.
4.Mary’s father, a very famous scientist, believes that the moon’s poles are where water is most likely to e_________.
5.It is widely acknowledged that smoking is not only h_________ to smokers themselves, but also threatens other people’s health.
6.As we know, everyone has his own _________ (优势) and shortcomings.
7.If you will have dinner with an very important person , you should know some table _________ (礼仪) in advance.
8.Some _________ (暴力的) scenes in this movie were canceled during its public show.
9.Students required the math teacher to explain the _________ (难题) again, but he refused.
10.This boat is made of paper, so it can _________ (漂浮) on the surface of the water.
It was an early blow to my self-confidence. I was attending my first group meeting in the lab _______ a postdoc (博士后), and I was _______ that I could follow most of the discussion. Then, in front of everyone, the professor turned to me and asked about my previous accomplishments. I _______. As a PhD student, I had achieved lots to be _______ of. But _______ of those were in my home country of Brazil. Now I was in Washington D. C. and I didn’t know what the word “accomplishment” meant. So all I could say was “I don’t know”.
I had decided to do a postdoc abroad because I thought the training would _______ me a teaching position. I applied for it and received a Brazil in government fellowship to spend 18 months working abroad and got a position in a lab. It all seemed so easy—until I _______ started.
In a new country, I _______, After the _______ lab meeting incident, my confidence took another ________. The paper I had finished painstakingly did not ________. I used to be invited to give talks. Now, I was asked to speak more ________ because of my accent. My confidence was ________.
After months of ________, I reminded myself that I had ________ of success. I needed to do something to ________ my confidence. I thought a change of environment might be what I needed. So I made the ________.
In another new lab, I still felt insecure. ________, I was determined to make the most of the time I had. There were more opportunities to interact with other, which forced me to ________ more. It was awful at first, but with practice I began to feel more confident in my English. I proposed new projects. I began to receive ________ feedback on my presentations.
My confidence is back.
1.A.for B.as C.like D.with
2.A.aware B.afraid C.glad D.sorry
3.A.suffered B.fell C.froze D.refused
4.A.appreciative B.protective C.ashamed D.proud
5.A.any B.all C.none D.little
6.A.secure B.lead C.land D.provide
7.A.clearly B.frequently C.hardly D.actually
8.A.failed B.struggled C.crashed D.cried
9.A.exciting B.interesting C.fascinating D.embarrassing
10.A.hit B.loss C.failure D.pain
11.A.come about B.come on C.come out D.come in
12.A.naturally B.slowly C.awkwardly D.accurately
13.A.drowned B.changed C.destroyed D.delayed
14.A.self-harm B.self-help C.self-rule D.self-doubt
15.A.promise B.mark C.spot D.access
16.A.regain B.return C.review D.replace
17.A.response B.sacrifice C.move D.plan
18.A.Otherwise B.Besides C.Then D.However
19.A.write B.read C.talk D.listen
20.A.positive B.objective C.active D.strong
Earlier this year, I removed all Internet services from my home, which was very upsetting at first, but I have lived that way. 1..
I was not content with the time I was wasting—2.. If there is something I want to research on the Internet, I write it down and use that list when I have Internet access. Now I’m forced to leave the house to get the Internet. I’ll go to the office, the library, the coffee shop, or some other places with free public Wi-Fi, and work on what I need to do online.
Now the Internet is a tool I use to improve my life. 3., but I go on the Internet with the intention of doing these things. Whenever I’m on the Internet now, I use it in a deliberate way, a way that benefits me and my life, and a way that adds value.
4.. I could focus on writing without being disturbed. I have more time to read, to write, to think, to exercise and to walk. Because I’ m out of the house and there are people around. I meet new people. Additionally, I have more time for friends and I feel less stressed and my thoughts are clearer. My mind is more focused on important things. 5. Plus, I no longer long for the Internet like I once did.
It will be upsetting at first, but you will live, and your life will be better without it.
A.Here are some of my tips to use the Internet in a more productive way
B.Since I got rid of the Internet at home, I’ve found so many benefits
C.I don’t have a monthly Internet bill
D.I learnt to think independently
E.It ended up being the most productive and wisest decision I’ve ever made
F.I log on to watch some videos or laugh at funny pictures
G.I felt I could do more purposeful things than spend it on the Internet
By the end of the century, if not sooner, the world’s oceans will be bluer and greener thanks to a warming climate, according to a new study.
At the heart of the phenomenon lie tiny marine microorganisms (海洋微生物) called phytoplankton. Because of the way light reflects off the organisms, these phytoplankton create colourful patterns at the ocean surface. Ocean colour varies from green to blue, depending on the type and concentration of phytoplankton. Climate change will fuel the growth of phytoplankton in some areas, while reducing it in other spots, leading to changes in the ocean’s appearance.
Phytoplankton live at the ocean surface, where they pull carbon dioxide (二氧化碳) into the ocean while giving off oxygen. When these organisms die, they bury carbon in the deep ocean, an important process that helps to regulate the global climate. But phytoplankton are vulnerable to the ocean’s warming trend. Warming changes key characteristics of the ocean and can affect phytoplankton growth, since they need not only sunlight and carbon dioxide to grow, but also nutrients.
Stephanie Dutkiewicz, a scientist in MIT’s Center for Global Change Science, built a climate model that projects changes to the oceans throughout the century. In a world that warms up by 39C, it found that multiple changes to the colour of the oceans would occur. The model projects that currently blue areas with little phytoplankton could become even bluer. But in some waters, such as those of the Arctic, a warming will make conditions riper for phytoplankton, and these areas will tum greener.” Not only are the quantities of phytoplankton in the ocean changing,” she said, “but the type of phytoplankton is changing.”
And why does that matter? Phytoplankton are the base of the food web. If certain kinds begin to disappear from the ocean, Dutkiewicz said, “it will change the type of fish that will be able to survive.” Those kinds of changes could affect the food chain.
Whatever colour changes the ocean experiences in the coming decades will probably be too gradual and unnoticeable, but they could mean significant changes. “It’ll be a while before we can statistically show that the changes are happening because of climate change,” Dutkiewicz said, “ but the change in the colour of the ocean will be one of the early warning signals that we really have changed our planet.”
1.What directly makes the change of the ocean’s appearance?
A.The increase of phytoplankton.
B.The way light reflects off the organisms.
C.The type and concentration of phytoplankton.
D.The decline of phytoplankton.
2.What does the underlined word “project” in Paragraph 4 probably mean?
A.Control. B.Use.
C.Predict. D.Discover.
3.What can we learn from the passage?
A.Phytoplankton are sensitive to the ocean’s warming trend.
B.Phytoplankton absorb carbon dioxide at the bottom of the ocean.
C.Oceans with more phytoplankton may appear bluer
D.Data have been found to show the change in the colour of the ocean
4.What is the main purpose of the passage?
A.To introduce a new method to study phytoplankton.
B.To explain the effect of climate change on oceans.
C.To analyze the consequences of ocean colour changes.
D.To analyze the composition of the ocean food chain.
