2026届高考英语二轮复习：语法填空4篇 课件(共31张PPT)

(共31张PPT)
Scientists at Work
2025年完胜高考语法填空
(4篇)
Dr. Priscilla C. Grew
Dr. Priscilla C. Grew is a well–known scientist in the field of geology, the study of Earth’s rocks. As a geologist, Dr. Grew looks at a lot of specimens to learn how Earth 1.____________(change) in the past 4.5 billion years.
A good time and place 2.________(look) for these changes is after a volcano has erupted. Afterward, the air becomes dark and murky from ash. When the ash settles, it blankets the land. Sometimes a volcano can release hot lava as well.
Dr. Priscilla C. Grew
has changed
一
to look
When hot lava spills out, the ground becomes an excellent place to study how new rocks and minerals are formed. This is 3.__________(especial) true for the ground near a dormant volcano because the area surrounding such a volcano has not changed in a very long time.
especially
Areas affected by earthquakes are another good place to find a geologist. Early in her career, Dr. Grew helped
many people in California lower the chances of getting 4.________(harm) during major earthquakes. Then Dr. Grew moved to Minnesota 5._______ she became the first
woman to be named state geologist. She and her team searched all over the state 6._______ minerals in the soil. Once they were found, they were scoured clean and
prepared for studies that Dr. Grew would perform.
harmed
where
for
After leaving Minnesota, Dr. Grew became the
first female director of the University of Nebraska
State Museum. Visitors to the museum learn about
geology, earth science, and biology. They enjoy the 7.________(display) of rocks and fossils.
displays
During her life and career, Dr. Grew has tried to connect the world of rocks and soil to 8.________(people) needs. By helping people to be safer during earthquakes 9.______ looking for important minerals in the soil, Dr. Grew connects her research to the real world. All this makes Dr. Grew more than 10.______ observer. She is a hands–on scientist who is making a difference.
people’s
and
an
Dennis Kunkel
Becoming a Scientist
Dennis Kunkel grew up in the Iowa countryside, 1._______ cornfields stretched for miles in all directions. Dennis helped tend the flowers and vegetables in the family garden. He went on weekend fishing trips with his parents and his sisters, and he took care of the family pets. Dennis loved nature and 2._______(be) outdoors, but he did not know that someday he would become a scientist.
where
二
being
Hidden Worlds--Looking Through a Scientist’s Microscope
Then Dennis received a gift that changed his life. "When I was ten years old, my parents gave me a microscope for Christmas," he recalls. "It came with a
set of prepared slides—things like insect legs, root hairs, and tiny creatures called protozoans. As soon as I 3.___________(unwrap) the microscope, I forgot about
my other presents and tried to figure out how to use it."
unwrapped
The prepared specimens that came with the microscope were dead. Dennis quickly discovered that it was more fun to observe things that were alive and moving, so he began to take collecting trips. One of Dennis’s first trips was to a pond about a mile 4.______ a half from his house. “I started hiking down there with my little collecting bottles and bringing back water samples to look at 5.________ my microscope,” he explains. “I couldn’t wait
to get home from school in the afternoon so I could go to the pond. Before long I was looking at all kinds of fascinating creatures. ”
and
under
After Dennis graduated 6.______ high school, he enrolled in a junior college in his hometown. A biology teacher there encouraged his love of science and microscopes. Dennis often worked in the science lab after school, using microscopes to study the things he collected.
from
Dennis used his microscope to look at anything he could fit under its lenses. He examined insects, soil samples, and parts of plants. He looked at fur from his pets and seeds from nearby fields. Dennis made drawings of the things he observed, and he spent many hours 7._________(read) about them.
reading
Then Dennis 8.___________(transfer) to the University of Washington, in Seattle. Finally he could learn and do things he had dreamed about. "I had the chance to work in labs with good microscopes," explains Dennis. "I spent hours speaking with professors and students about science. I had dreamed of exploring and learning about undersea
life like Jacques Cousteau, but 9._______ I left Iowa I had never even seen the ocean. While I attended the University of Washington, I learned how to scuba dive. It was 10.________(thrill) to go underwater to observe and collect the plants and animals I wanted to study."
transferred
until
thrilling
In graduate school, Dennis began to use the science
department’s electron microscopes for his own research, studying tiny living things called cyanobacteria. But Dennis also used the microscopes to help other scientists. He helped one of his professors study and classify pollen grains from different kinds of flowers. He helped a fellow graduate student examine wood with an electron microscope to learn about how plant cells deposit minerals and create "hard" wood. He helped other students with their studies of algae, fungi, and flowering plants.
三
Dennis worked on research projects at the University of Washington and the University of Hawai’i for about twenty-five years. Now he does much of his work in his home on the island of O’ahu, Hawai’i.
laboratories
Working as a Scientist
Scientists are explorers. They usually make discoveries by asking questions and then trying to answer them. Some scientists find their answers in 3.___________(laboratory), surrounded by equipment and instruments. Others travel to natural areas to find their answers. Dennis’s work has taken him to mountains, rainforests, deserts, caves, beaches, and into the sea.
Whenever Dennis goes on field trips, he takes along collecting boxes and bottles. When he returns to the
lab, the boxes and bottles are usually full of interesting specimens: algae, lichens, mushrooms, seeds, leaves,
insects, bark, soil, and flowers. Dennis has explored
4.________(hide) worlds in places ranging from the blast zone of a volcano to the dust balls underneath people’s beds!
hidden
a
Mount St. Helens
In 1980, a dormant volcano called Mount St. Helens erupted in Washington State. The blast from the eruption flattened huge forests of tall trees. Floods of boiling mud and water from melting snow scoured riverbeds. The countryside was covered with 5.______ thick layer of ash for miles around.
Some of the first people allowed to visit the blast
zone were biologists, scientists who study living things. They were stunned by the 6.___________(destroy). One of the first things they wanted to know was 7.________ any living things had survived.
whether
destruction
A team of scientists from the University of Washington made plans to study the lakes and streams
of the blast area. Since Dennis was an expert on algae,
the simple plants found in lakes and streams, he was invited to help with the study. The scientists traveled to
a camp set up on the north side of Mount St. Helens. Twice a day, a helicopter flew 8.______(they) into the blast zone. All they could see, for miles in every direction, were dead trees blanketed by a heavy layer of ash.
them
The scientists were thrilled because they had never explored the area around an active volcano so soon after this type of eruption. But no one knew when the mountain might erupt again. In fact, no one even knew for sure whether it was safe to land a helicopter in the blast zone. Some pilots 9.________(think) the ash stirred up by the whirling helicopter blades might choke the engines. So Dennis and the other scientists weren’t allowed to land in the study area on the first few trips. They had to collect their water samples while the helicopter was in the air!
thought
As Dennis and the team crisscrossed the blast zone
in the helicopter, they kept their eyes open for water. When they spotted a lake or pond that had survived the blast, the pilot flew the helicopter into position. As the helicopter hovered over the murky gray water, Dennis lowered collecting bottles on ropes. The bottles had triggers so Dennis could open them at different 10.________(deep). This allowed him to collect some water samples from near the surface and others from
deep in the lakes.
depths
The first water samples the scientists collected showed that some of the lakes were 1.__________(complete) dead. Nothing had survived the heat, gases, and choking ash of the eruption.
Just a few weeks later, Dennis used microscopes to look at new water samples he had collected from the same lakes. He was amazed 2._______(see) algae, protozoans, and bacteria living in the water. Within several months, small crustaceans—animals that feed on algae and bacteria—began to reappear in some of the lakes.
completely
四
to see
Dennis and the other scientists kept careful records of the kinds of living things that returned to the lakes and when they reappeared. They identified the kinds of algae, protozoans, bacteria, and crustaceans they found. Later, Dennis and the team also discovered that frogs and fish were returning to some of these lakes, apparently carried in by surrounding streams. Their studies helped other scientists understand 3.______ happens to life in lakes when a nearby volcano erupts—and how living things eventually return to areas where all life was destroyed.
what
being
How to Become a Scientist
Here is Dennis’s advice for students who think they might like to become scientists:
Become an observer. One of the most important things you can do to become a good scientist and microscopist is practice 4._______(be) a careful observer.
Find a comfortable chair and put it in the middle of your garden, yard, or a park. Sit in the chair for ten minutes or thirty minutes or an hour. Watch the insects that fly past or land on the plants. Look at the shapes of leaves and stems and branches. Listen to the sounds of buzzing bees and chirping crickets. See if you can find a sight or smell
or sound that surprises you. Use a loupe or magnifying glass to look closely at interesting objects.
Learn everything you can about a topic that interests you. Suppose you’d like to explore flowers by using a microscope. Go to the library and check out some flower books. See what you can find on the Internet. Pick some flowers and carefully take them apart. Use a loupe or a magnifying glass to see how everything fits together. The more you know about flowers from reading about
them and observing them, 5._______ more you’ll understand when you begin looking at them with a loupe or a microscope.
the
Ask for help from a 6.______________(knowledge)
person. After you’ve learned everything you can 7._____ your own, ask someone else to help with questions you still have. Maybe there’s someone at a nearby school or museum who knows about insects, spiders, algae, moss, or something else you’d like to learn about. If you don’t have a microscope of your own, maybe a teacher would help you look at some specimens with a school microscope.
knowledgeable
on
Find a scientist to talk to 8.______ find a place where scientific research 9.____________(do). If you still want to learn more, you may be able to find a scientist to talk to at a nearby college, university, or research station. Write a letter or an e-mail message to the scientist, explaining what you’re interested in. Ask if you can schedule a time
to visit. Most scientists are happy to talk to students who share their passion 10.______ science.
or
is being done
for