Is there link between humans and climate chan...

Is there link between humans and climate change or not? This question was first studied in the early 1900s. Since then, many scientists have thought that our actions do make a difference. In 1997, the Kyoto Protocol explained our role in the Earth’s changing atmosphere and set international limits for gas emissions（排放）from 2008 to 2012. Some countries have decided to continue these reductions until 2020. More recently, the Paris Agreement, stuck by nearly 200 countries, also aims to limit global warming. But just now how much warmer it will get depends on how deeply countries cut carbon emissions.

3.5℃: This is how much temperatures would rise by 2100 even if nations live up to the initial Paris promises to reduce carbon emissions; this rise could still put coastal cities under water and drive over half of all species to extinction.

2℃: To meet this minimum goal, the Agreement requires countries to tighten emissions targets every five years. Even this increase could sink some islands, worse drought and drive a decline of up to a third in the number of species.

1.5℃: This is the most ambitious goal for temperature rise set by the Paris Agreement, after a push by low-lying island nations like Kiribati, which say limiting temperature rise to 1.5℃ could save them from sinking.

0.8℃: This is how much temperatures have risen since the industrial age began, putting us 40% of the way to the 2℃ point.

0℃: The baseline here is average global temperature before the start of the industrial age.

1.It can be concluded from Para.1 that _______.

A. the problem of global warming will have been quite solved by 2020

B. gas emissions have been effectively reduced in developed countries

C. the Paris Agreements is more influential than the Kyoto Protocol

D. humans have made continuous efforts to slow down global warming

2.If nations could only keep the initial promises of the Paris Agreement, what would happen by the year 2100?

A. The human population would increase by one third.

B. Little over 50% of all species would still exist.

C. The Agreement’s minimum goal would not be reached.

D. Nations would not need to tighten their emissions targets.

3.If those island nations not far above sea level are to survive, the maximum temperature rise, since the start of the industrial age, should be_______.

A. 0.8℃　　 B. 1.5℃　　 C. 2℃　　 D. 3.5℃

高二英语阅读理解中等难度题查看答案及解析

Cell phones：Is there a cancer link?

Could your cell phone give you cancer? Whether it could or not, some people are worrying about the possibility that phones, power lines and Wi-Fi could be responsible for a range of illnesses, from rashes to brain tumors.

Some say there is evidence to support the growing anxieties. David Carpenter, a professor of environmental health sciences at the university at Albany, in New York, thinks there’s a greater than 95 percent chance that power lines can cause childhood leukemia (白血病). Also there’s a greater than 90 percent chance that cell phones can cause brain tumors. “It’s apparent now that there’s a real risk, ”said Carpenter.

But others believe these concerns are not justified. Dr Martha Linet, head of radiation epidemiology (流行病学) at the US National Cancer Institute, has looked at the same research as Carpenter but has reached a different conclusion. “I don’t support warning labels for cell phones, ”said Linet. “We don’t have the evidence that there’s much danger.”

Studies so far suggest a weak connection between EMFs (电磁场) and illness—so weak that it might not exist at all. A multinational investigation of cell phones and brain cancer, in 13 countries outside the US, has been underway for several years. It’s funded in part by the European Union, in part by a cell phone industry group. The final report should come out later this year, but data so far don’t suggest a strong link between cell phone use and cancer risk.

1.From the passage we can learn that some people are worried because________.

A. they have evidence that the use of cell phones can lead to cancer

B. they feel surprised and alarmed about cell phone use

C. some experts have given a warning

D. cell phones are responsible for brain tumors

2.By saying “I don’t support warning labels for cell phones, ”Dr Martha Linet has the idea that_______.

A. the worrying is unnecessary

B. cancer—warning labels should be on cell phones

C. there is a link between cell phones and cancer

D. cell phones have nothing to do with cancer

3.Which of the following best describes the attitude of the author towards the debate?

A. Optimistic.　　 B. Objective.

C. Opposite.　　 D. Casual.

4.The underlined word “justified” in Paragraph 3 is closest in meaning to_____．

A. explained　　 B. confirmed （证实、确认）

C. classified　　 D. restricted （限制）

高二英语阅读理解中等难度题查看答案及解析

There is no doubt ____ the world climate _____ in recent years because of humans activities.

A. that; changed　　　　　　　　　　　 B. whether; has changed

C. that; has been changing　　　　 D. what; is changing

高二英语单项填空中等难度题查看答案及解析

There is no doubt ________all this new technology is changing the way ________we work and offering many other ways of working.

A.whether;that　　　　　 B.that;/

C.if;in which　　　　　　 D.what;that

高二英语单项填空中等难度题查看答案及解析

The climate is changeable in this area. You should prepare more clothes ___________ the sudden change of weather.

A. in charge of 　　 B. in place of

C. in honor of　　　　 D. in case of

高二英语单项填空中等难度题查看答案及解析

There is no doubt _________ the world climate has been changing in recent years.

A. that        B. what        C. if          D. whether

高二英语单项填空中等难度题查看答案及解析

There is no doubt _________ the world climate has been changing in recent years.

高二英语单项填空中等难度题查看答案及解析

With climate change and overfishing threatening our oceans, it is becoming increasingly important for researchers to closely observe and check sea animals and plants. However, it’s almost impossible to make it since human presence scares the animals. Now, thanks to the robot, aka SoFi, researchers may be able to solve the problem.

Built by MIT’s laboratory, the snow-white remote-controlled robot simulates fish, complete with a flexible tail that moves from side to side and two “fins (鳍)”.

When the robot is under the sea, a motor is pumping water into a pair of balloon-like rooms located in the robot’s tail. These rooms operate similarly to the key parts in engines. As one room expands, the tail bends to one side; when the motor pushes water to the other channel, the tail bends in the other direction. Thus the robot gains the ability to move to where it wants to go.

SoFi solves many of the issues that have affected the usefulness(有效性) of previous robots --- some types of autonomous underwater vehicles (AUVs).

AUVs traditionally often have had to be tied to a boat because radio frequency communications do not work well underwater. So researchers use sound waves. The new technology can travel greater distances, allowing drivers, by using a controller, to pilot SoFi from up to 50 feet away. SoFi can move around the ocean, unaffected by ropes. Also limiting traditional AUVs’ usefulness is the risk of hitting something, like hard stones. With the outside made of rubber(橡胶) and plastic that can keep its built-in electronics dry, SoFi can efficiently avoid hitting. So a soft robot is more likely to survive a potential crisis.

During test dives in Rainbow Reef, SoFi swam alongside the unsuspecting(无疑心的) ocean life at depths of 50 feet for up to 40 minutes at a time, obtaining high-quality photos and videos. More importantly, it was able to do so without causing any disturbance. Researchers say sometimes the fish would swim alongside the strange-looking robot in curiosity, while at other times they appeared to completely ignore its existence. “It’s not perfect, but we’re improving it. Our efforts will pay off,” says Robert Katzschmann.

1.The robot SoFi is created to ________.

A.observe climate change B.help to monitor sea creatures

C.catch fish and observe them D.prevent overfishing in oceans

2.What does the underlined word “simulates” in Paragraph 2 probably mean?

A.Is modeled after. B.Is designed for.

C.Is combined with. D.Is applied to.

3.What’s Paragraph 3 mainly written to show?

A.The shape of SoFi. B.The application of SoFi.

C.The structure of SoFi’s tail. D.The theory of SoFi’s movement.

4.What’s Robert Katzschmann’s attitude towards SoFi?

A.Satisfied. B.Negative. C.Hopeful. D.Neutral.

高二英语阅读理解中等难度题查看答案及解析

Due to climate change, Arctic ice is breaking up earlier in the spring, and its area is decreasing. This is creating problems for polar bears that make their homes off northern Alaska and in Hudson Bay.

Polar bears off Alaska normally hunt and raise their young on ice sheets that float on the ocean. But as the ice has melted, the polar bears have been forced to spend more time on land. There, they have begun to frequent beaches, feeding on the remains of whales caught by native hunters. For polar bears, this food is less nutritious than seals that they normally catch on ice sheets. The shrinking（减少） ice has also forced more polar bears into the ocean. In the past, they only had to swim short distances between ice sheets. But as the ice has shrunk, polar bears have been forced to swim longer and longer distances in the open ocean. This poses a severe danger during rough weather, and an increasing number of drowned polar bears have been observed.

In Hudson Bay, the ice breaks up three weeks earlier in the spring now than it did 20 years ago. Polar bears on Hudson Bay fast（绝食） during the summer, waiting for ice to form in the fall to hunt. Every year, the summer gets longer, and the bears get skinnier. Over the past 25 years, the average weight of the female bears has dropped 68 kg. This loss affects their ability to reproduce, and already the number of births has dropped 15 percent. Unless the bears can learn to survive these climate changes, these giants of the ice may one day disappear.

1.What is Arctic ice doing earlier each year?

2.What is true of polar bears that are spending more time on land in Alaska?

3.What do polar bears in Hudson Bay do during the summer?

4.In which publication would you most likely find this passage?

高二英语阅读理解中等难度题查看答案及解析

Climate change has arrived and is _____ faster than many scientists expected.

A.uniting B.accelerating C.declining D.twisting

高二英语单项填空中等难度题查看答案及解析