eliminate

executive

border

sample

junior

emphasize

appointment

fare

capture

judgement

immune

measure

profit

satisfy

voluntary

crime

intelligent

promise

preference

exposure

criticism

secondary

promote

approach

edition

contribute

economics

psychological

concrete

victim

adj.精心设计的

v.下降

v.发布

adj.合理的

v.保持，保留

v.乘，乘以

n.扩大，扩建部分

v.调查

vt.使沮丧

n.交流，通信

n.企业，事业

n.判决，判断

vi.出现，升起

v.批评

vt.指导，教

vt.推断

adj.对立的

v.使合格，使具备资格

v.出版，刊登

v.激励，鼓舞

adj.反面的，相反的

adj.恐慌的

adv.最终，最后

v.使成为，致使

v.区别，辨别

v.入学，加入，登记，入伍

n.治疗，医治

n.钩，钩状器官

v.退休

adj.有害的

adj.可选择的：op___al

n.数字：fi__e

n.安全：se__rity

n.自行车：bicy__

n.皮肤：s__

n.景象：sce__

v.指挥：con__

n.关心：con__

v.损坏：dam__

adj.古典的：cla__ical

v.表演：per__

n.公用电话亭：b__th

adj.辽阔的：__st

n.名誉，名声：re__tion

v.闻，嗅：sm__

n.间隔，间隙：g__

n.加法：add__

n.候选人：can__ate

n.外表，外貌：app__ance

n.旅游业：tour__

In ancient times, people mainly relied on 1. ________ (they) feet to travel, which made long - distance journeys extremely difficult. 

Horses 2. ________ (use) as a means of transportation, and horse - drawn carriages became common 

Horses were used as a means of transportation, and horse - drawn carriages became common, 3. ________ (great) expanding people’s range of movement and promoting trade between different regions. 

The Industrial Revolution marked 4. ________ new era. 

Trains, with 5. ________ (they) large capacity and relatively high speed, became a vital part of transportation. 

6. ________ the 20th century, the appearance of automobiles and airplanes revolutionized travel once again. 

Automobiles provided 7. ________ (person) mobility, while airplanes made it possible to cross continents in a matter of hours. 

High - speed trains combine speed and comfort, and electric vehicles are becoming 8. ________ (increasing) popular due to their environmental benefits.

High - speed trains combine speed and comfort, and electric vehicles are becoming increasingly popular due to their environmental 9. ________ (benefit). 

These changes in transportation modes have not only made our lives more convenient but also 10. ________ (deep) influenced the way we live and work. 

Everyone has a dream, and mine is 1.________ (become) a renowned environmental scientist. 

I 2.________ (shock) deeply by the severe environmental problems such as air pollution, deforestation, and water contamination when I watched a documentary about the earth’s ecosystem. 

Since then, I 3.________ (be) determined to contribute to environmental protection. 

I plan 4.________ (study) environmental science in college.

I plan to study environmental science in college, 5.________ (focus) on researching sustainable energy sources and effective waste - treatment methods. 

By 6.________ (develop) clean energy alternatives to fossil fuels, I hope to reduce carbon emissions and slow down global warming. 

I also want to participate 7.________ international environmental projects.

I also want to participate in international environmental projects, collaborating with experts worldwide 8.________ (find) solutions for environmental issues. 

I know 9.________ (achieve) this dream requires hard work and perseverance. 

But I believe that with continuous effort, I can make 10.________ difference and help create a more sustainable world for future generations.