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必修1 UNIT 4 单元双测·课时作业(一)
Ⅰ.阅读理解
A
(2025·河南高三下开学考试)When hurricanes left a path of destruction in Puerto Rico, Pennsylvania College of Technology student Natascha G.Santaella felt a variety of painful emotions.
“I spent around six days stressing and having a very hard time with me having all the luxuries I currently do and my family not having any,” the Guaynabo, Puerto Rico, resident said. Santaella said that her hometown is without power and water, and that people there are scared of what is to come.
To reduce her stress, Santaella, who is studying for an associate degree in baking and pastry arts, immersed (沉浸) herself in what she knows best: baking. “It started out as just baking bread and shipping it to the island to then be dispersed to the people, but I found that was very expensive for me to do alone, so I spoke with Chef Charles Niedermyer, our instructor of baking and pastry arts about a sale of baked goods in the college’s Bush Campus Center.”
“Natascha is a bright, energetic young lady with a big heart,” Niedermyer said. “I was not surprised to find her in my office, looking for ways to help the people of Puerto Rico.”
To prepare, Santaella had multiple meetings with Niedermyer, spent hours finalizing recipes, designed signage (标志) and decorations, and got friends to staff the sale table with her. And then there was the baking: Santaella and two friends in the baking and pastry arts major spent six hours baking 90 loaves of bread, 24 dozen dinner rolls and 30 cheesecakes in a variety of flavors.
During the six⁃hour sale, Santaella and her friends raised more than 1,000 for United for Puerto Rico, an initiative designed to provide aid and support to those affected in Puerto Rico by the passage of Hurricane Irma and Hurricane Maria.
“I hope to mainly increase awareness of what has happened, and to show people that there are Puerto Rican students at this school,” Santaella said. “I hope that others had the great experience I had with all my teachers and how understanding they were with me.”
1.Why did Santaella feel very stressed?
A.Because a big hurricane was approaching.
B.Because she was left without power and water.
C.Because her folks were suffering due to hurricanes.
D.Because she lost all her belongings in the hurricane.
2.What does the underlined word “dispersed” probably mean in paragraph 3?
A.Exposed. B.Connected.
C.Distributed. D.Contributed.
3.What can we learn from the text?
A.Niedermyer responded to Santaella’s ideas coldly.
B.Santaella organized the sale at her college all alone.
C.Puerto Rico might be stricken by hurricanes frequently.
D.Pennsylvania College has few students from Puerto Rico.
4.Which can be the best title for the text?
A.Hurricane Causes Huge Losses to Puerto Rico
B.Student Puts Skills to Use to Help Her Hometown
C.College Student Shows Baking Skills Through Sales
D.Teacher and Students Work Together in Fund Raising
B
(2025·兰州市高三诊断考试)The oceans play a crucial role in lightening global warming by absorbing carbon dioxide (CO2) emissions. However, in a study conducted by the University of Texas at Austin, researchers found that the oceans’ capacity to absorb carbon dioxide would reach its maximum by 2100 and decrease to half of its current efficiency by 2300, based on a climate simulation (模拟) that was set for a worst⁃case emissions scenario (设想).
The decline happens because of a surface layer of low⁃alkalinity (碱度) water that can hinder the ability of the oceans to absorb CO2. Alkalinity affects how much CO2 can dissolve in seawater. Although the emissions scenario used in the study is unlikely because of global efforts to limit greenhouse gas emissions, the findings reveal a previously unknown tipping point that if activated would release an important brake on global warming.
“We need to think about these worst⁃case scenarios to understand how our CO2 emissions might affect the oceans not just this century, but next century and the following century. Climate simulations had previously shown that the oceans slow their absorption of CO2 over time, but none had considered alkalinity as an explanation. We recalculated pieces of a 450⁃year simulation until we hit on alkalinity as a key cause of the slowing.” said Megumi Chikamoto, who led the research at the University of Texas Institute for Geophysics.
The effect begins with extreme climate change, which slows ocean currents. This leaves the surface of the oceans covered in a warm layer of fresh water that won’t mix easily with the cooler, more alkaline water below it. That means more of the greenhouse gas is left in the atmosphere. This in turn produces faster warming, which sustains and strengthens the low⁃alkalinity surface layer. Co⁃author, Pedro DiNezio, said that the discovery was a powerful reminder that the world needs to reduce its CO2 emissions to avoid crossing this and other tipping points.
5.What may happen after the year 2300?
A.More CO2 will be absorbed by the oceans.
B.The oceans will lose all their current efficiency.
C.The world will face even more severe warming.
D.The oceans will be less crucial to global warming.
6.What does the underlined word “hinder” in paragraph 2 probably mean?
A.Improve. B.Weaken. C.Protect. D.Control.
7.What does Megumi Chikamoto say about the oceans?
A.Finding why they slow CO2 intake is hard.
B.Their ability to absorb CO2 is at their maximum.
C.They will decide on the future of human beings.
D.They will slow down CO2 absorption very quickly.
8.Where is this text probably taken from?
A.A biology textbook. B.A government report.
C.Science fiction. D.An environmental journal.
Ⅱ.完形填空
(2025·广州模拟)I was heading home after giving my colleague a lift. I took a 9 as the snowstorm was approaching.
Then the snow started and was coming down 10 . Within minutes I was in a whiteout. The windows were 11 and getting covered with snow, so I slowed down and rolled down my driver’s side window, thinking I could better 12 the road edge and keep to a straight line. But really, I had no 13 where I was. I stopped and kept the car running to stay 14 . I called 911.The operator told me to wait things out for the night.
The call left me in 15 . Breathe, I told myself. An idea occurred to me. I 16 my location online and explained what I was 17 , wishing for anyone to come to my rescue. Soon enough, people started chiming in on my post. I got a 18 from someone who was going to put me in touch with people nearby. I had never been more 19 .
Then I saw a big 20 in the dark. He had walked about 500 metres to get me, 21 the wind and snow each step of the way. “You’ll be OK. Follow me.” He turned around and started to trudge through the snow, sure of the 22 . I drove slowly behind him. When we reached his house, I burst into tears of 23 .
9.A.shortcut B.turn
C.look D.risk
10.A.soon B.fast
C.lightly D.suddenly
11.A.locked B.closed
C.frozen D.broken
12.A.follow B.cover
C.mark D.remember
13.A.plan B.clue
C.doubt D.problem
14.A.awake B.calm
C.warm D.still
15.A.confusion B.trouble
C.embarrassment D.panic
16.A.confirmed B.found
C.posted D.checked
17.A.looking at B.going through
C.searching for D.carrying out
18.A.tip B.comment
C.like D.message
19.A.inspired B.relieved
C.convinced D.amazed
20.A.policeman B.creature
C.shadow D.figure
21.A.fighting B.avoiding
C.checking D.reporting
22.A.goal B.danger
C.depth D.direction
23.A.hope B.love
C.gratitude D.pride
必修1 UNIT 4 单元双测·课时作业(二)
(Ⅰ、Ⅱ题在答题区内答题,Ⅲ题在题后直接作答)
Ⅰ.阅读七选五
Earthquakes are a terrible natural disaster that will cause lots of danger and damage. In the last few years, we have seen some of the worst earthquakes in history. 1 However, we do get some signs from animals, including dogs!
Dogs have been known to warn their owners that dangerous weather was coming. We can take the ways our dog reacts in certain situations to give us a hand in predicting when something like an earthquake may be about to happen.
Although the signs of a dog sensing an earthquake aren’t very clear, dogs who sense earthquakes will show certain signs before the event actually happens. 2 You know your dog well, so it will not be too challenging to tell when there is something wrong. Some dogs will begin to run around in circles and pace up and down crazily. It may appear as if something has frightened them or as if they saw something that made them nervous. 3
On the other hand, dogs will instinctively look for shelter when they sense bad weather or they feel like they are in danger. 4 Or if they are outside, they may go into their dog house. It is important to that just because your dog is showing all or some of these signs, it does not mean an earthquake or other natural disaster is about to strike.
5 But take their behaviors seriously and do what you feel is right depending on the situation.
A.Many dogs can tell smelly gas.
B.Your dog may run off or hide under a bed.
C.Using dogs to predict earthquakes is not new.
D.If there is a coming earthquake, your dog will act strangely.
E.They will also often bark for what seems to be no right reason.
F.Earthquakes generally come with no warning and are hard to predict.
G.There may be other reasons dogs may act this way or appear afraid for seemingly no reason.
Ⅱ.语法填空
(2025·咸阳模拟)Chinese achievements in pollution control, ecological recovery and protection, and green development China 1 (make) in the past decade were highlighted at a Friday press briefing, 2 a senior official pointed out China’s 3 (participate) and leadership in global climate governance.
According to the press briefing, China has been the fastest in improving air quality and the PM 2.5 level in cities at the prefecture level and above dropped by 34.8 percent from that of 2015.Days with good air quality reached 87.5 percent. Pollution of water bodies and the soil is also 4 (effective) tackled. Ecological systems 5 (protect) and restored. National parks are set and more than 300 endangered animal and plant species saw their wild populations recover, marking achievements in protecting ecological diversity.
The country has taken 6 active part in cooperation on climate change. It has done its 7 (good) to help other developing countries to improve their climate response capacity 8 (reduce) the harmful impacts of climate change. It also has distributed over 1.2 billion yuan on climate change and trained about 2,000 officials and experts in the field of climate change 9 more than 120 developing countries.
10 (head) forward, China will work with all parties to actively participate in the global governance of climate change.
Ⅲ.读后续写 精品课件·名师析题
阅读下面材料,根据其内容和所给段落开头语续写两段,使之构成一篇完整的短文。
It began as a typical January day. The grey skies were heavy with snow and wind in front of Valleyview School. I was in my first year of teaching and had no idea that this approaching snowstorm would be so severe.
By mid⁃day the principal called the school buses back so the three hundred kids could get home safely before it was too late. My students gathered their belongings, excited to go home early. The buses arrived but the storm suddenly worsened before the waiting kids could board and it was quickly clear no one was going anywhere soon. By now the bus drivers and a couple of snowplow (铲雪车) operators were discussing the situation. There were over three hundred children, staff, bus and snowplow drivers stuck inside the school.
Night approached and the storm showed no signs of stopping. We were facing some basic questions. What would we feed several hundred children for dinner? Where would they sleep?
Earl, our school gatekeeper, began working non⁃stop to keep the heater running. Concerned about the old pipes freezing, he wrapped them with whatever material he could find. With our electricity lines swaying under the increasing weight of ice and snow in heavy winds, what would we do if we lost power? A plan was definitely needed.
Every parent was called to reassure them that their children were safe, and then people who lived close enough to brave the storm were called and asked if they could help. Soon, a handful of people had managed to travel through the heavy and blinding snow bringing bags of sandwiches, tinned juices, blankets and a couple of board games. One woman, who lived right on the edge of the school, wrapped herself up and felt through the blinding snow with a huge kettle and enough ingredients to make tomato soup for at least half of the school. There wasn’t a lot of food, but everything was shared, no one went hungry, and no one complained.
注意:1.续写词数应为150左右;
2.请按如下格式作答。
Before night fell, we worked out entertaining and sleeping arrangements for the kids.
The next morning the snow stopped and people began to clear the snow.
8 / 8
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