1、In the Chinese market, many foreign brands, ________ their reputations over decades, are facing new challenges due to COVID-19.
A.being developed
B.developing
C.having developed
D.developed
2、—Is it all right if I leave a bit earlier?
——_________ . I can finish the report on my own.
A.Sure thing
B.Help yourself
C.Forget it
D.That depends
3、—Have you finished that long article written by the famous scientist?
—No, I used up my ______. It’s too long and I only stopped halfway.
A.determination B.devotion C.patience D.strength
4、In all aspects of the society, there are many heroes dedicated to their work. So they should get the ________ they deserves.
A.award
B.ceremony
C.price
D.credit
5、Upon __________ the word “volunteer”, what comes to your minds?
A.learned B.to learn C.learning D.being learned
6、This flu season in the U.S. began earlier than usual and started ________ in midNovember with an increase of influenza B.
A.building up B.piling up C.rising up D.picking up
7、The child was found __________ the streets alone.
A.wandered B.to wander C.wander D.wandering
8、Five workers ____ the mine disaster. After the injured ___ to the hospital, doctors and nurses immediately got down to saving their lives.
A.was survived; rushed
B.survived from; were rushed
C.survived; was rushed
D.survived; were rushed
9、In the forest, sound is the best means of communication over distance ________ in comparison with light, it won't be blocked by trees when travelling.
A. while B. because
C. when D. though
10、______ the past year as an exchange student in Hong Kong, Linda is more independent now.
A. Spending B. Spent
C. To spend D. Having spent
11、Our teacher looked here and there on our playground ________ looking for something.
A.even though
B.even if
C.as if
D.only if
12、________ your symptoms. If they get worse, get medical help right away.
A.Catch sight of
B.Make use of
C.Take care of
D.Keep track of
13、My brother’s plans are very ______; he wants to master English, French and Spanish before he is 10.
A. arbitrary B. aggressive C. ambitious D. abundant
14、Privacy is like health. Only when it is gone________you had done more to protect it.
A.do you wish B.you wish C.did you wish D.you wished
15、—Alice has just lost her husband to heart failure.
—Her ______ smile can’t hide her sorrow.
A. arbitrary B. artificial
C. compulsory D. conventional
16、_______the strong winds continue, part of the highway would still be temporarily closed.
A. Could B. Would C. Should D. Might
17、From 1902 to 1904, Picasso painted a series of pictures________ the main color was blue.
A.which B.that C.where D.when
18、Mr. Wilson is a man of patience and kindness, and his good temper never ______ him.
A.fails
B.disappoints
C.controls
D.worries
19、Due to the reform and openingup, our living conditions, undoubtedly, have improved ________ over the past decades.
A.considerately
B.approximately
C.appropriately
D.considerably
20、Nowadays, basic health care services are ________ to almost all the Chinese people. This accounts for the fact that the average life expectancy of all the Chinese has already risen to 75.
A.accessible
B.abundant
C.accurate
D.attractive
21、Professors at the University of California San Diego have developed microrobots, which can be a potential treatment for life-threatening cases of bacterial pneumonia, a serious disease affecting lungs and making breathing difficult. In mice, the microrobots safely removed pneumonia-causing bacteria in the lungs and resulted in 100% survival while untreated mice all died within three days after infection.
The microrobots are made of algae (藻类) cells whose surfaces are covered with substances that are filled with antibiotics (抗生素). The algae provides movement, which allows the microrobots to swim around and make antibiotics go directly to more bacteria in the lungs, helping absorb bacteria and clear them of infected cells. This give the microrobots the ability to reduce bacterial infection, which in turn makes them more effective at fighting lung infection.
The work is a joint effort by engineering professors Joseph and Zhang Liangfang. Together, they have pioneered the development of tiny drug-delivering robots that can be safely used in live animals to treat bacterial infections in the stomach and blood. Treating bacterial lung infection is the latest in their line of work.
“In the traditional treatment, sometimes only a very small number of antibiotics will get into the lungs. That’s why many current antibiotic treatments for pneumonia don’t work as well as needed,” said Victor Nizet, a co-worker of Joseph and Zhang “Based on these mouse data, we see that the microrobots could potentially improve the use of antibiotics to kill bacteria and save more patients’ lives.”
The work is still at the proof-of-concept stage. The team plans to do more basic research to understand exactly how the microrobots interact with the immune system (免疫系统). Next steps also include studies to confirm the effectiveness of the microrobot treatment before testing it in larger animals and eventually, in humans. “We’re pushing the boundary further in the field of targeted drug delivery,” said Zhang.
【1】How do microrobots work?
A.By doing targeted drug delivery.
B.By interacting with antibiotic-filled matter.
C.By producing algae cells in lungs.
D.By separating harmful cells from healthy ones.
【2】What is Victor Nizet’s attitude towards the invention?
A.Doubtful.
B.Subjective.
C.Cautious.
D.Favorable.
【3】What does the team expect of the microrobots?
A.They’ll inspire a new line of research.
B.They’ll help strengthen the immune system.
C.They’ll have a wider range of application.
D.They’ll be a further proof of their concept.
【4】What is the text mainly about?
A.A scientific invention treating deadly cancers.
B.Tiny swimming robots helping treat pneumonia.
C.A major breakthrough made in antibiotic research.
D.Microrobots employed in the engineering field.
22、Four Popular Camps
Camp Live Oak
3400 NE 163rd St, North Miami, FL33160, USA
Phone: 888-736-3180
With over 20 years of experience, we meet over 300 ACA standards of health, safety, programming and staffing. We foster sportsmanship, cooperation, self-discipline, respect for nature and leadership. Activities are age-appropriate and include hands-on science, swimming, canoeing, fishing, guest speakers, hiking, sports and field trips! We have a great teen program for those aged from 14 to 16.
YMCA Camp du Nord
3606 North Arm Rd, Ely, MN 55731, USA
Phone: 651-645-6605
For over 50 years, YMCA Camp du Nord has been providing outdoor experiences for families: offering opportunities for enriched family relationships, increased wilderness appreciation and spiritual growth. Each day provides new adventures, where families have quality time together. Activities include canoeing, campfires, age-group programming, cross-country skiing, hiking and fishing!
Road's End Farm Camp
149 Jackson Hill Road. Chesterfield, NH 03443, USA
Phone: 603-363-4900
Simply put, Road's End Farm Camp is a small camp that appeals to kids who just love being around horses, caring for them and riding for enjoyment rather than competition. The camp provides unlimited exposure to horses and rural life in a picturesque setting. Campers enjoy riding and stable chores each morning, arts & crafts each afternoon, and story time in the evenings.
Kingsley Pines Camp
51 Coughlan Cove Rd, Raymond, ME 04071, USA
Phone: 207-894-9030
You can't go very far at Kingsley Pines Camp without hearing a laugh or seeing a smile. In our safe surroundings and enriching environment, children have the responsibility of choosing their own activities. They develop a higher level of self-confidence and form friendships that last forever. Our camp is so fun that they'll want to come back year after year!
【1】Which number should a couple dial if they want to camp with their kids?
A.888-736-3180.
B.651-645-6605.
C.603-363-4900.
D.207-894-9030.
【2】What can campers do at Road's End Farm Camp?
A.Go fishing in a city park.
B.Compete in horse riding races.
C.Ride horses for pleasure.
D.Listen to stories in the morning.
【3】What is special about Kingsley Pines Camp?
A.It focuses on leadership.
B.It invites many comedians.
C.It is full of adventures.
D.It lets kids choose activities.
23、Why Are Tigers Orange?
The colors of an animal serve lots of different purposes — for instance, to help them hide into surroundings and escape from being noticed by preys (猎物). For tigers, their ability to be invisible will just decide whether they catch dinner or go hungry. 【1】
As for humans, orange is a color used for items that need to stand out, like traffic lights and safety vests. That’s because we have what’s called trichromatic color vision, which differentiate three types of color: blue, green and red. 【2】 But most other mammals, including dogs, horses and deer, have dichromatic (二色的) color vision for only two colors: blue and green. Humans who get information only of blue and green are considered color-blind, and can’t distinguish between red and green colors. 【3】
Mammals like deer are the tiger’s main prey, and their dichromatic vision means they don’t see tigers as orange — they see them as green. That makes the tiger much harder to spot as it’s prowling behind a bush or crouching in the grass. Although green tigers would probably be even harder to spot, evolution (进化) just doesn’t work with the ingredients necessary to make green fur. 【4】 The only recognizably green mammal is a sloth, and its fur isn’t green in fact. That’s an alga that grows in its fur.
【5】 There seems to be no evolutionary pressure, particularly for deer, which are the main prey of the tiger, to become trichromatic. That’s probably because the tiger doesn’t know it’s orange either. So, the evolutionary race really doesn’t exist for that color. It’s just that the tiger has evolved over the sweep of evolution to have a coloring, a hiding system, which protects it very well in its jungle setting.
A.Actually, there are no green furry animals.
B.Orange fur makes tigers relatively easy to spot.
C.The same is likely true for dichromatic animals.
D.Then, why don’t deer evolve the ability to see orange?
E.So, of all the colors they could be, why are tigers orange?
F.Colors of humans’ eyes are quite similar to many other mammals’.
G.We share this style of vision with some mammals like apes and certain monkeys.
24、When 12-year-old Taylor Smith wrote a special letter to herself last spring, to be read in 10 years’ time, she didn’t know it would be opened before even a year had passed— and that it wouldn’t be her eyes reading the words.
“She had told me that she had written a letter to herself, and that she was excited that she was going to open it when she was older,”said Taylor’s mother, Mary Ellen Smith.
Instead, it was opened by Taylor’s parents after she died last spring. They posted the letter to Facebook, hoping it would inspire others.
It has. “We’ve gotten letters from lots of parents who have said it has encouraged them to love their kids and love each other,” said Mary Ellen Smith.
In the letter, Taylor congratulated herself on graduating from high school and asked, “Are you in college?”
She also wanted to know if she had been on a plane yet and if the show “Doctor Who” was still on the air.
Taylor also had some words for her future kids. After considering the idea of selling her iPad and getting an iPad mini instead, she told her future self to mention to her kids that “We’re older than the tablet.” She included a drawing of an iPad for them to see.
Taylor died suddenly of pneumonia (肺炎), leaving behind both her parents and an older brother.
“I just want people to know just what an awesome, awesome person she was,” her father, Tim Smith said.
Her mother said, “I can’t bring her back, but I’m so grateful people have been inspired by her story.”
Taylor’s father read the closing g words of her letter, which said, “It’s been years since I wrote this. Stuff has happened, good and bad. That’s just how life works, and you have to go with it.”
【1】Taylor Smith decided to open her letter when she was ________.
A. 18 years old B. 20 years old
C. 22 years old D. 24 years old
【2】Why did Taylor’s parents post her letter to facebook?
A. To show Taylor Smith’s deep love for her parents.
B. To encourage parents and kids to love each other.
C. To make themselves well-known and make money.
D. To prove Taylor Smith was good at writing.
【3】We can learn from the passage that Taylor Smith ________.
A. was a college student
B. had never got an iPad
C. had never taken a plane
D. wanted to join “Doctor Who”.
【4】What is the message conveyed at the end of Taylor Smith’s letter?
A. We should develop the habit of keeping a diary.
B. We should accept everything that happens in life.
C. We should stop bad things from happening.
D. We should show our love for our parents in time.
25、 Lehrner always wanted to design roller coasters. Even as a(n)_______, though, she knew that there had to be more to it that just hopping on board.“I started _______ how I would prepare." she said. She looked to science and math and _______ advanced classes in algebra and geometry in middle school and high school. Then she 1ook even more _______math and a high-level physics course.
She also _______theme parks as often as she could and researched the_______of those coasters online. When it came time for_______, she went to the Colorado School of Mines in Golden, where she_______a bachelor's degree in mechanical engineering.
Now Lehrner works with amusement parks to design and_______new coasters. These new coasters they design are________made of wood, except for a metal________on which the cars run. The basic design has been around for more than a century. Still, Lehrner notes each new one is different. “A lot of the same________and concepts are used when 1 design new coasters. But they ________with the terrain (地势) and design. That tells us what the limits will be — how tight the bends and how________the hills are."
Some parks________their coasters to he as scary as possible. That means big________and quick turns and lots of inversions. Lehrner is________ at taking twisted wood coasters.
The coasters she________make you feel as if you're going________than you really are, because the tracks are lower to the ground. “We also try to build rides that are fun for the whole________— children as well as their parents.” she said.
【1】A.genius B.kid C.teacher D.inventor
【2】A.thinking about B.going over C.writing down D.dreaming of
【3】A.brought B.researched C.took D.gave
【4】A.classical B.ancient C.practical D.advanced
【5】A.visited B.created C.sponsored D.managed
【6】A.parks B.makers C.themes D.players
【7】A.vacation B.graduation C.college D.decision
【8】A.made B.bought C.researched D.got
【9】A.discover B.learn C.build D.purchase
【10】A.largely B.completely C.carefully D.possibly
【11】A.cover B.frame C.fence D.track
【12】A.metals B.components C.colors D.plans
【13】A.agree B.compare C.change D.deal
【14】A.beautiful B.dangerous C.much D.high
【15】A.want B.consider C.hate D.imagine
【16】A.drops B.coasters C.seats D.carriages
【17】A.amazed B.expert C.pleased D.excited
【18】A.rides B.enjoys C.designs D.studies
【19】A.slower B.crazier C.further D.faster
【20】A.family B.community C.place D.society
26、假定你是李华,你校交换生 David 有意加入学校阳光志愿者组织(Sunshine Club),向你咨询相关情况,请你给他写一封回信, 内容包括:
1. 表示支持;
2. 主要志愿活动;
3. 申请方式。
注意:1. 词数80左右;
2. 可适当增加细节,以使行文连贯。
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