微信扫一扫
随时随地学习
随时随地学习
1、My brother ________ you more help, but he was fully occupied at that time.
A. gave B. had given
C. could give D. could have given
2、According to The Sun, British scientists have solved the ancient riddle of ________ came first—chicken or egg?
A．who
B．what
C．which
D．that
3、She’s added a few characters and changed some names but ________ this is a true story.
A. completely B. necessarily C. gradually D. essentially
4、If a person has not had enough sleep, his actions will give him ___ during the day.
A.away B.up C.in D.back
5、Although _____ by the opposite team, the players were not discouraged but practiced harder.
A. beating B. beaten
C. having beaten D. being beaten
6、I find it astonishing that he ____be so rude to us. I_____ make a complaint to his company.
A.could; must B.should; shall C.shall; should D.dare; have to
7、Monsanto, a big company, denies the novel coronavirus infection of one of its customers was caused by its product and says it will ______.
A.appeal B.apologize C.modify D.compromise
8、I wonder ________ the equipment will be available in ten days.
A. that B. when C. whether D. where
9、You will find as you read this book that you just can’t keep some of these stories to ________. You will want to share them with a friend.
A. itself B. yourself C. himself D. themselves
10、The ringing bell ________the end of the last class on Friday afternoon. Students rushed out of the classrooms and headed back to their dormitories.
A．confirmed
B．predicted
C．indicated
D．instructed
11、________, fiction is often more interesting than the truth.
A．Impossibly
B．Generously
C．Necessarily
D．Admittedly
12、__________of the land in that district __________ covered with trees and grass．
A．Two fifth; is
B．Two fifths; is
C．Two fifth; are
D．Two fifths; are
13、________ a full discussion of the problem, the committee spent a whole hour exchanging their ideas at the meeting.
A．Have
B．Having
C．Had
D．To have
14、— The room looks bigger!
— We ______ the furniture.
A. have changed B. had changed
C. changed D. are changing
15、I just sat by the window watching the passing scene ________ I caught the eye of a waiter and ordered my meal.
A．once
B．while
C．until
D．since
16、--- What do you think I should do?
----________your teacher’s advice, in my opinion, and everything will be OK.
A．Follow
B．Following
C．to follow
D．Followed
17、The student said there were a few points in the essay he_________impossible to comprehend.
A.has found B.was finding C.had found D.would find
18、—Have you known each other for long?
—Not very long, ________ we started to work in the company.
A.after B.before C.when D.since
19、—Have you heard of yesterday's gas explosion?
—Yes. Only two of the 35 miners at the scene ________ to have made it out safely.
A. have thought B. are thought
C. had thought D. were thought
20、---Shall we go and see the museum?
---No, ________.
A．don’t mention it
B．not at all
C．never mind
D．it’s not worth it
21、Grand Canyon Park Ranger Programs
Guided Cedar Ridge Hike
7 am Daily
(Meet at the South Kaibab Trailhead)
A 3-mile (4.8 km) hike on an unpaved path. Allow 4 hours. Minimum 2 liters of water per person. Bring salty snacks, sunscreen, and wear hiking shoes. Not recommended for people with heart problems, or difficulty walking.
Fossil Discovery Walk
9 am Daily
(Meet at the Bright Angel Trailhead sign)
Walk among sea creatures that lived on this part of the continent 270 million years ago, before the age of the dinosaurs. This easy 1/2-mile (0.8 km) one-way walk explores an exposed fossil bed.
Critter Chat
9:30 am Daily
(Meet at Grand Canyon Visitor Center)
Learn about some of the Grand Canyon’s diverse wild creatures who survive here in this place of extreme changes in exposure and climate. Wheelchair accessible. Family friendly.
Geology Walk
3:30 pm Daily
(Meet at Yavapai Geology Museum)
Learn how the Grand Canyon formed while exploring Yavapai Geology Museum during this short introductory talk. Why is it so deep, wide, and grand? Why does it exist only here and nowhere else in the world? Consider walking the Trail of Time following the program.
Note: Children must be accompanied by an adult in all programs. All programs are free of charge.
【1】What might you not experience in the programs above?
A．Go on an exhausting hike.
B．Walk the Trail of Time.
C．Look for dinosaur fossils.
D．Learn more about existing animals.
【2】Which program is friendly to people with difficulty walking?
A．Guided Cedar Ridge Hike.
B．Fossil Discovery Walk.
C．Critter Chat.
D．Geology Walk.
【3】Where do you meet for the program introducing the formation of the Grand Canyon?
A．At Yavapai Geology Museum.
B．At the South Kaibab Trailhead.
C．At Grand Canyon Visitor Center.
D．At the Bright Angel Trailhead sign.
22、 In a major medical breakthrough, Tel Aviv University researchers have “printed” the world's first 3D vascularized (有血管的）engineered heart using a patient’s own cells and biological materials. Their findings were published on April IS in a study in Advanced Science.
“This is the first time anyone anywhere has successfully engineered and printed an entire heart,” says Prof. Tal Dvir of Department of Materials Science and Engineering, who led the research for the study. “This heart is made from human cells and patient-specific biological materials. In our process, these materials serve as the bioinks, something made of sugars and proteins that can be used for 3D printing of complex tissue models，” Prof, Dvir says. “People managed to 3D print the structure of a heart in the past, but not with cells or with blood vessels (血管).Our results demonstrate the potential of our approach for engineering personalized tissue and organ replacement in the future.”
According to Prof. Dvir，the use of “ native ” patient-specific materials is important to successfully engineering tissues and organs.
The researchers are now planning on culturing the printed hearts in the lab and “ teaching them to behave” like hearts, Prof. Dvir says. They then plan to transplant the 3D-printed heart in animal models.
“We need to develop the printed heart further，” he concludes. “The cells need to form a pumping ability ； they can currently contract (收缩），but we need them to work together. Our hope is that we will succeed and prove our method’s efficacy (功效)and usefulness. “Maybe, in ten years, there will be organ printers in the finest hospitals around the world，and these procedures will be conducted routinely. ”
【1】What does Prof. Dvir think of an early 3D-printed heart?
A.It was highly practical. B.It was too expensive.
C.It was personalized. D.It was too simple.
【2】What do we know about the latest 3D-printed heart?
A.It can be cultured in the lab.
B.It can match a patient perfectly.
C.It has been transplanted in animals.
D.It has been widely used in hospitals,
【3】What is Prof, Dvir's attitude to the development of the printed heart?
A.Ambiguous. B.Positive.
C.Disapproving. D.Cautious.
【4】What is the author's purpose in writing the text?
A.To explain the basic principle of 3D technology.
B.To introduce a breakthrough of medical research.
C.To doubt the medical value of a new invention.
D.To prove the effectiveness of the new technology.
23、 Recently Stiles aged 17 took her 3-year-old brother, James, to her high school. A family emergency prevented her parents from being able to pick up James. So they asked Stiles to step in.
“This was a one-time event; we have never had her get him from school other than this day. But it was an emergency,” her mother said. “I figured she had gone to get him and taken him home. Later that day I saw the picture online and realized that she had taken him back to school.”
Little James quickly fell asleep in his big sister’s arms at the high school.
She didn’t want to be counted absent or miss any work. Stiles was studying to be a nurse. She was in her class, and the teacher gladly welcomed her little brother in. He was so tired from his school that he slept most of the class. She not only helped her family out but returned to her responsibility at school.
Her teacher was very supportive and didn’t mind him being in the class at all. He slept most of the time and if he had become a problem she would have taken him out. She attends an amazing school that clearly sees the value in family and education.
Her mom said she can now put to rest any worries she’s had that the 14-year age gap between Stiles and James would keep them from being close. As a mom, she was thankful that they had this kind of relationship, and she prayed it would always stay this way.
【1】Why did Stiles’ parents ask her for help?
A.Her family was in trouble. B.She was close to being an adult.
C.Her brother refused to attend school. D.Her parents couldn’t collect James.
【2】Where did Stiles want to work when she grew up?
A.In a hospital. B.In a school. C.In a factory. D.In a shop.
【3】What was Stiles’ teacher’s attitude to her act?
A.Opposed. B.Critical. C.Ambiguous. D.Approving.
【4】What once made Stiles’ mother concerned?
A.Stiles’ bad performance in the key school. B.Stiles’ identity of being a senior high student.
C.Stiles’ terrible relationship with her classmates. D.The age difference between Stiles and her brother.
24、Culture Shock
Moving to a new country can be an exciting experience. In a new environment, you somehow feel more alive. Soon, however, the new and delightful feeling turns into stress and discomfort.【1】 Although not everyone experiences culture shock in exactly the same way, many experts agree that it has roughly five stages.
In the first stage, you are excited by your new environment. Your feelings about the new culture are positive, so you are eager to make contact with people and to try new foods.
【2】This is the second stage of culture shock. Because you do not know the social customs of the new culture, you may find it difficult to make friends. For instance, you do not understand how to make “small talk,” so it is hard to carry on a casual, get-acquainted conversation. These are not minor challenges; they are major frustrations.
In the third stage, you no longer have positive feelings about the new culture. You feel that you have made a mistake in coming here. Making friends hasn’t been easy, so you begin to feel lonely and isolated. 【3】 You begin to spend most of your free time with students from your home country, and you eat in restaurants that serve your native food.
You know that you are in the fourth stage of culture shock when you have negative feelings about almost everything. 【4】 You become critical, suspicious, and irritable. You believe that people are unfriendly, that your teachers do not like you, and that the food is making you sick.
Finally, you reach the fifth stage. As your language skills improve, you begin to have some success in meeting people and in negotiating situations. 【5】 After realizing that you cannot change your surroundings, you begin to accept the differences and tolerate them.
A.Your self-confidence grows.
B.You’ll regret making the decision.
C.These are the causes of culture shock.
D.In this stage, you actively reject the new culture.
E.This is the phenomenon known as culture shock.
F.Now you want to be with familiar people and eat familiar food.
G.Sooner or later, differences in behavior and customs become noticeable to you.
25、 Both my parents came from towns in Mexico. I was born in EI Paso. Texas, and when I was four, my family _________ to a housing project in East Los Angeles.
Even though we _________ to make ends meet, my parents stressed to me and my four brothers and sisters how_________ we were to live in a great country with limitless opportunities. They rooted these concepts of family, faith and patriotism(爱国主义) in our mind.
I got my first real job when I was ten. My dad, Benjamin, injured his back working in a cardboard-box factory and then was _________ as a hairstylist. He _________ space in a little mall and gave his shop the fancy name of Mr.Ben’s Coiffure.
The owner of the shopping center gave Dad a _________ on his rent for cleaning the parking lot three nights a week, which meant getting up at 3 a.m. Dad used a little machine that looked like a lawn mower to collect _________. Mom and I picked up litter by hand and _________ garbage cans. It took two to three hours to clean the lot.
I did this for two years, but the _________ I learned has lasted a lifetime. I ____________ discipline and a strong work ethic, and learned at an early age the importance of balancing life’s competing interests-in my case, school, homework and a job. This ____________ helped during my senior year of high school. I worked 40 hours a week packaging burgers at a fast-food restaurant while taking a full load of school courses.
The hard work ____________. I attended the U.S. Military Academy and went on to receive graduate degrees in law and business from Harvard. Later I joined a big Los Angeles law firm Nowadays when I reflected on ____________ I have done, I’ve never forgotten my first job in the parking lot. The experience taught me there is dignity in all work and that if people are working to provide ____________ themselves and their families, that is something we should ____________.
A．returned
B．moved
C．escaped
D．adapted
A．determined
B．pretended
C．struggled
D．motivated
A．fortunate
B．grateful
C．comfortable
D．pleasant
A．recognized
B．dismissed
C．retrained
D．appointed
A．purchased
B．possessed
C．expanded
D．rented
A．discount
B．privilege
C．deadline
D．choice
A．paper
B．rubbish
C．goods
D．remains
A．emptied
B．repaired
C．painted
D．abandoned
A．knowledge
B．technique
C．skill
D．lesson
A．created
B．regained
C．acquired
D．spotted
A．occasionally
B．hardly
C．definitely
D．simply
A．went off
B．took off
C．broke off
D．paid off
A．that
B．what
C．which
D．how
A．with
B．of
C．for
D．to
A．honor
B．cherish
C．value
D．seize
26、假如你是高中生李华,正在为明天英语课上的“课前三分钟演讲”做准备。你打算结合自己的经历，谈谈对挑战的看法。内容包括：
1.你是如何看待挑战的；
2.你战胜挑战的一次经历；
3.你的建议。
注意：1.开头和结尾已给出，不计入总词数；
2.词数100左右。
Hello, my dear friends. I’m happy to share my opinion about challenges with you.
_____________________________________________________________________________________________________________________________________________________________________________________________
That’s all. Thank you.
邮箱： 