1. What do we know about the museum?
A.It can be explored in one day. |
B.It houses a good many exhibits. |
C.It can hold thousands of people at one time. |
A.In Egypt. | B.In the U. K. | C.In Greece. |
A.The modern artwork. |
B.The ancient sculptures. |
C.The American carvings. |
A.At 3:00. | B.At 4:00. | C.At 5:00. |
2 . Body shaming involves humiliating (羞辱) someone making negative comments about their body size or shape.
Replacing negative self-talk with positive thoughts can be useful for making you feel better about yourself and your body.
Social media often emphasizes physical appearance and makes it easy to post hurtful comments about others. Cutting down or stepping away from social media can give you an opportunity to connect in-person and participate in other activities that lift your mood. Communicating face-to-face is nature’s cure of stress.
Reach out to others for guidance and support and let them know what you have been experiencing.
A.Treat yourself with kindness and love. |
B.Don’t hide or isolate yourself from others. |
C.This type of criticism can be made to others or yourself. |
D.Shift your focus to the things that you like about yourself. |
E.Being physically active is also important for your overall health and well-being. |
F.It’s crucial to find someone you trust and feel comfortable sharing your feelings with. |
G.While nobody is immune to social pressures to look good, any comments about your body are unnecessary. |
3 . Hundreds or even thousands of jackdaws (寒鸦) are known to launch into the winter sky at once from the treetops at sunrise, and then split into smaller groups to feed throughout the day. Now, ecologists know that this synchronized (同步的) departure is timed with a complicated behavior called “consensus decision-making”, where the majority agree to take action.
To figure it out, researchers in the United Kingdom recorded hundreds of hours of their bird calls in Cornwall over several months. They measured when the first jackdaws began their calls, how loud the birds were, and how quickly the swell (增强) of calls rose, and then compared these sounds to footage (镜头) of those birds’ departures. The team found that the jackdaw group left together once the chorus of calls reached a critical mass--the more rapidly the chorus swelled, the earlier the birds left.
“They all leave together in a few seconds. The sky just fills with black birds forthwith. It is just like a black snowstorm,” Alex Thornton, an ecologist at the University of Exeter, UK, told New Scientist. Every call is a jackdaw casting its vote to leave. “At first you just get a few calls, then more and more birds join in and it builds and builds. And the steeper the increase, the earlier they leave,” Thornton added. On rare occasions, when the intensity of the chorus doesn’t build enough and the jackdaws don’t agree, the birds instead launch off in small numbers.
The team also found that once jackdaws reached a consensus they departed almost immediately, with hundreds of individuals flying in less than five seconds. When scientists played past recordings of calls back to the jackdaws, getting in the way of the group’s natural crescendo (渐强的声音), they were able to push forward the birds’ launching by more than six minutes. The birds did not, however, change their launch times in response to other noises.
“The gregarious (群居的) birds prefer to leave as a group, although each jackdaw will have a slightly different preference as to when they want to leave, based on factors like their size and hunger,” Alex Dibnah, a University of Exeter graduate student and lead author of the study, said in a statement. “Leaving the roost (栖息处) together has various benefits, including safety from predators and access to information such as where to find food.”
This research shows the critical role vocalizations (发声) play in group decision-making for this species. One next step for this research, according to the authors, is to figure out how human-created noises might affect this process and the spread of information throughout these communities.
“Imagine a big roost near a town or busy road,” Thornton said. “If the birds can’t hear each other and can’t form a consensus to leave together, it could have big impacts on their population.”
1. What is the purpose of the research in Cornwall?A.To understand how jackdaws reach an agreement. |
B.To study what makes jackdaws’ departure time unique. |
C.To make a comparison of jackdaws’ calls with other birds’. |
D.To assess the importance of jackdaws’ complicated behaviors. |
A.Frequently. | B.Gradually. | C.Traditionally. | D.Immediately. |
A.It can reach an agreement within seconds. |
B.Its launch times vary little from season to season. |
C.It can distinguish its natural calls from other noises. |
D.It makes no response to the past recordings of calls. |
A.The impacts of human hunting on jackdaws’ population. |
B.The effects of noises on jackdaws’ group decision-making. |
C.The way jackdaws spread information in their communities. |
D.The role of jackdaws’ vocalizations in group decision-making. |
4 . Mica came into my life in 2012. When I heard that a
After all, I may have adopted Iske, but actually she’s the one that rescued me—through a heartbreaking
A few e-mails and a transport miracle later, Mica arrived. Unlike Iske, Mica had a tough time adjusting—She refused to be
After a few weeks of training and bonding, I decided to take her for a short hike. She had
As soon as I took off the leash (狗绳) in the forest, she
After that, we committed ourselves to completing the highest 35 mountains in the Catskill region. It would have been amazing for any dog to hike at this level of
A.lucky | B.senior | C.young | D.special |
A.reserved | B.preserved | C.abandoned | D.accompanied |
A.revealed | B.linked | C.made | D.meant |
A.breakup | B.cleanup | C.checkup | D.backup |
A.Agreement | B.Rescue | C.Adoption | D.Respect |
A.look head | B.give back | C.step down | D.hold on |
A.pulled | B.commanded | C.petted | D.ignored |
A.awful | B.awesome | C.familiar | D.similar |
A.swell | B.hurt | C.sink | D.heal |
A.loved | B.learned | C.forgotten | D.heard |
A.observed | B.raced | C.hesitated | D.wandered |
A.monitored | B.occupied | C.tracked | D.surveyed |
A.secure | B.loose | C.close | D.tense |
A.intensity | B.complexity | C.accuracy | D.severity |
A.chapter | B.day | C.street | D.chain |
5 . In a crowded migrant (移民) camp in Tijuana, Mexico, a three-year-old girl wandered
It was December 2018, a time when the US-Mexico border was seeing migrants from Central America
Back at home, Rebellón gathered a group of volunteer
Rebellón has received numerous
A.leisurely | B.alone | C.freely | D.abroad |
A.tended | B.recognized | C.invited | D.noticed |
A.relief | B.health | C.business | D.education |
A.fighting | B.preventing | C.escaping | D.worsening |
A.side | B.place | C.hand | D.heart |
A.determined | B.annoyed | C.disappointed | D.panicked |
A.line up | B.make up | C.stand up | D.look up |
A.soldiers | B.doctors | C.writers | D.teachers |
A.expenses | B.savings | C.bills | D.charges |
A.integrated | B.forced | C.transformed | D.translated |
A.Limited | B.Funded | C.Motivated | D.Influenced |
A.create | B.adjust | C.reject | D.follow |
A.special | B.strange | C.common | D.major |
A.opportunities | B.honours | C.blessings | D.messages |
A.display | B.possess | C.maintain | D.expand |
6 . Jobs for Organic Chemists
Welcome to the Organic Chemistry Portal Job Market! Here you can browse recent job openings worldwide, and find jobs in research and development both in industry and academia. Some tips for your career as an organic chemist and the application process in particular can be found further down on this page.
Educational Requirements
Studying is an essential component of becoming a chemist. To become a chemist, you will need to complete a formal education program that provides you with a strong foundation in chemistry, mathematics, physics, or other related sciences.
Networking Opportunities
To find an interesting job, you should occasionally interact with industrial chemists and make personal contacts. This is best done at scientific conferences or via the social medium Linked In, where the Organic Chemistry Portal is also represented. This gives you interesting insights and allows you to focus your job search on suitable topics and companies. On the other hand, some people already know you and under some circumstances you already have references that could be listed in the application.
Acquire More Knowledge
For special fields, you can deepen your knowledge beforehand in order to show off some details in job interviews. Studying a specific textbook or reading journals in the field is suitable for this purpose. In some companies, you also have to talk to chemists during the application process, who ask for some basic or detailed knowledge. Name reactions in particular can be queried.
The Application Process
The application process for a job vacancy can vary depending on the company and the role you are applying for, but in general, it usually involves some common steps. Click here for more details.
→Application Materials:Cover Letter, Resume
1. What education background is needed for a student to become a chemist?A.Evening school of Sciences. | B.Self study of chemistry. |
C.College education of Maths. | D.High school optional course of Physics. |
A.Attend some job hunting fairs. |
B.Give detailed personal information. |
C.Chat with chemists via social media. |
D.Pursue further education in related sciences. |
A.A website. | B.A magazine. |
C.A newspaper. | D.A brochure. |
China plans to start building a lunar base in about four years,
China has previously said its lunar base will likely be powered by nuclear energy, and will include a lander, hopper, orbiter and rover, all of
“Eentually, building habitation
The moon is believed
Yu Dengyun, from the China Aerospace Science and Technology Corporation, provided an
1.软件使用情况描述;
2.分析该现象的原因;
3.简要谈谈你的看法。
注意:
1.词数80左右;
2.短文开头已为你写好,不计入总词数。
As is shown in the survey conducted by our school’s English newspaper,
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________9 . If you are trying to assess a person’s character, make sure you do not rely too heavily on factors that can be misleading. Instead, observe the individual’s ability to tell the truth and to commit.
You can tell a lot about a person’s character by observing how he treats other people.
Whether or not a person is honest says a lot about his character. The attitude a person has about honesty can also indicate what type of person he is.
A person’s character is affected by his attitude.
When you are trying to assess someone’s character, remember that it consists of qualities and habits that form his identity.
A.More importantly, it’s necessary to continue his inner struggle. |
B.The level of commitment indicates the type of character he has. |
C.There are many other things in life that may require commitment. |
D.This includes both people he knows and people he does not know. |
E.Also, pay attention to his attitude and try to distinguish how it impacts his life. |
F.Observe the person’s conversations and try to determine how often he tells lies. |
G.Some people generally have a negative outlook while others may try to be positive even in difficult situations. |
10 . I was cleaning the roof of a customer’s house when the stroke (4 XI) happened. Laid up in the hospital bed, I was depressed, mind
I came home in a wheelchair. It was like waking up in a house after a storm, everything familiar yet
My son would move my walker a step forward,
While focusing on my
After buying an old house with most of our savings, I started a blog online called Making a Home to
Now, we have moved into our home. We may continue to face many challenges. Still, together we’ve
A.racing | B.wandering | C.flying | D.resting |
A.helper | B.defender | C.goalkeeper | D.breadwinner |
A.plain | B.broken | C.repaired | D.organized |
A.walk | B.jump | C.sleep | D.balance |
A.floor | B.rock | C.stream | D.window |
A.having | B.planning | C.relearning | D.remembering |
A.challenging | B.permitting | C.reminding | D.discouraging |
A.trouble | B.change | C.recovery | D.adjustment |
A.shared | B.designed | C.made | D.kept |
A.nodded | B.smiled | C.refused | D.hesitated |
A.start | B.record | C.report | D.announce |
A.meeting | B.watching | C.observing | D.following |
A.happy | B.down | C.nervous | D.excited |
A.faked it | B.made it | C.meant it | D.believed it |
A.relieve | B.respond | C.restore | D.reflect |