假定你是李华，你的英国笔友Jack对中国的铁路很感兴趣，想乘坐火车旅行。请根据以下要点提示，写一封书信，介绍中国铁路系统。
1.火车类型：髙铁(HSR)(G)(300 km/h)；
动车(CRH)(D)(200 km/h)；
快车(Express)(T/Z/K)(100 km/h)；
2.火车优点：安全，可以观赏沿途风景，省钱。
注意：
1.词数100左右；
2.可以适当增加细节，以使行文连贯；
3.开头和结尾已给出，不计入总词数。
Dear Jack,
I’m honoured that you show great interest in our trains.
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Yours,
Li Hua
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加；在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（＼）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1．每处错误及其修改均仅限一词；
2．只允许修改10处，多者（从第11处起）不计分。
I left home at 17 and pay my own way through college. In the past 20 years, I have worked for everything I needed. So it shocks me what some people in their 20s, still get their life supported by our parents. Some of these parents have difficult supporting their families.
It’s true that the job market is much more harder these days. Therefore, there are certainly some ways to make living on our own. Even if our parents is nice enough to pay for our college, we shouldn’t burden them with our problems. We should be financial responsible adults, made our parents proud of us.
Spreading an Infection
I’ve made it a habit to smile at people as often as possible, saying some kind words, “hello, thank you, have a nice day”, whatever fits. I have the right situation as I am living in 1. big city with many, many people.
I’m doing this for quite a while now, so I’ve seen all 2. （kind）of reactions, from people feeling 3. （threaten） by a friendly word, reacting 4. （angry） or even aggressively, to people 5. faces lit up with a huge smile and gave me the 6.（impress） that I’ve made this moment good for them.
Today something happened that I hadn’t yet experienced: Two people, complete strangers 7. me, one in the morning, one in the afternoon, whom I passed on the street without 8. （smile）at them, 9. with a friendly face, looked up from their inner focus, looked at me, started to smile and greeted me friendly while they 10.（pass）.
Have I started a “kindness virus”? That would be great! It makes my day, and I’m still smiling. I hope you do too!
I’m proud of myself for this kindness I did last night. I did it ______ and did the right thing. However, I was unwilling to ______, because by sharing I am also sharing the ______ and more self-centered side of myself.
It was last night and I ______ my shift at work. It was late and I wanted to go straight home. On my way out of the door I ______ a fellow staff member and colleague. She doesn’t have a ________ and usually either catches a taxi home or ______ for an hour waiting for ______ staff member and friend of hers to finish work.
In the past I’ve ______ to drive her home as she ______ on my side of town. But last night I really did not want to. I wanted to ______ straight home, alone. And I did not have to make “small talk”.
So I tried to ______ her, walking past her, heading down, and stealing out（偷溜）to the
____ without letting her see me and ______ without offering her a lift.
Yet, something in myself was stopping me. Something in myself made me ______ her and put myself in her shoes. She had young ______ who she wanted to go home to attend to and, she could go home right now ______ I took her, not an hour later when the other staff member and friend of hers who was taking her. So I offered. She ______. And of course, she was extremely ________.
Well, I learned a great ______ last night about not being so self-centered and selfish!
1.A. nervously B. proudly C. exactly D. carefully
2.A. share B. remark C. do D. consider
3.A. pleasure B. respect C. honour D. selfish
4.A. changed B. kept C. finished D. missed
5.A. noticed B. greeted C. followed D. helped
6.A. home B. choice C. friend D. car
7.A. hangs around B. hides away C. watches over D. calms down
8.A. each B. another C. either D. that
9.A. hated B. happened C. offered D. refused
10.A. works B. lives C. plays D. remains
11.A. fly B. ride C. drive D. walk
12.A. remind B. avoid C. attract D. please
13.A. workroom B. office C. playground D. park
14.A. therefore B. even C. however D. instead
15.A. rely on B. spy on C. look at D. point at
16.A. neighbours B. pets C. children D. friends
17.A. since B. although C. as D. if
18.A. accepted B. hesitated C. approached D. urged
19.A. reliable B. upset C. generous D. grateful
20.A. gift B. lesson C. treasure D. method
How to Become an Activist （活动家）
Activists are people who see the need for change and devote their time to doing something about it. 1. If you are interested in it you can do so.
2. This could be anything from a student club to a national organization （like the American Civil Liberties Union or the National Organizers Alliance）. Most activist organizations offer different levels of involvement, so you can do whatever you feel most comfortable with, whether that means attending meetings and demonstrations or just donating a little money when you can.
Volunteer your time. One of the best ways to make a difference is to volunteer your time. Reach out to organizations in your community that do work for your cause, and ask how you can help.
Donate money or supplies. 3. If you can’t afford to donate money to an organization that supports your cause, you may be able to donate other things they need, like clothing or canned food.
Reach out to family and friends. Tell your family and friends about your cause, and invite them to get involved. If they are interested, share literature about your cause or just talk to them about what you have learned. 4.
Promote your cause on social media. You can use social media to help keep your friends and followers informed about the causes you support. 5. Also, you can invite your friends to attend events or donate to fundraisers for your cause.
A. Take classes on issues related to your cause.
B. Join an organization that supports your cause.
C. They are driven by passion and a vision for a better future.
D. If you do volunteer work, invite them to volunteer with you.
E. Most activists or charitable organizations need resources to do their work.
F. Post useful articles and write about what you are doing to stay involved.
G. If you can’t reach out to them in person, then try connecting to people online.
Food storing is common in members of the crow（乌鸦）family. A new study tested the birds outside this naturally occurring behaviour, which may have evolved（进化）specifically because it gives crows a survival advantage. Some crow species are known to naturally use tools to recover food. So the researchers tested whether the birds could store and recover a tool so they could get it at their food after a gap of 17 hours—something we wouldn’t expect them to do naturally. But they were able to instantly select the tool out of a number of unnecessary items.
In another experiment, the researchers taught crows to select a token （礼品券）from a number of items so that they could then exchange for food. Again, the birds then showed that they could plan for the future using this new behaviour. This is different from all of the previous studies in future planning, which have focused on naturally occurring behaviour. For example, we know that chimpanzees select, transport and save appropriate tools for future needs.
These studies have shown that animals can plan for the future—but they left an important question open for debate. Are animals only able to plan to use abilities that have evolved to give them a specific advantage, or can they flexibly and intelligently apply planning behaviour across various actions? Most critics would say the former, as the animals were tested in naturally occurring behaviours.
But the new research provides the first evidence that animal species can plan for the future using behaviour that doesn’t typically occur in nature. This supports the view that at least some recognitive abilities in animals don’t evolve just in response to specific problems. Instead, it suggests that animals can apply these behaviours flexibly across problems in a similar way to humans. We need to investigate how flexible behaviour evolved. Then we might be able to see how crows’ ability to plan for the future fits in with their broader cognitive powers.
1.What’s the new finding about some crows according to Paragraph 1?
A. They can store food. B. They can use tools to recover food.
C. They can store and recover tools. D. They can select and store food.
2.What are crows trained by scientists to do when given a token?
A. Reject it casually. B. Exchange it for food.
C. Save it as their food. D. Build a nest with it.
3.What do scientists think of the studies that animals can plan for the future?
A. They are controversial. B. They are disappointing.
C. They are contradictory. D. They are convincing.
4.What can be inferred about recognitive abilities in animals?
A. They develop only with age.
B. It is unclear how they’ve evolved now.
C. No animals but crows benefit from them.
D. Planning for the future helps their evolution.
