Word Study Unit 21. One of the most obvious symptoms of tuberculosis(肺结核) is p_________ cough, the patient may even cough blood and turn extremely pale. 2. All the adversity(逆境) along the path wouldn’t hold back Howard Hugh’s d__________ to build the largest plane in the world. 3. Even the future seems so gloomy, the young man holds a very o__________ attitude: as long as he works hard, he will make a difference to the world. 4. An a__________ is selected from hundreds of experienced pilots and has to be knowledgeable to carry out his or her mission in the space.5. The PLA of China gains a reputation for its high standards of d_________: the soldiers mustn’t take anything from the civilians. 6. World Wide Fund for Nature(世界自然基金会) is c__________ to preserving the natural habitats of the endangered species on earth. 7. As a gun e_________, he is strongly opposed to Joe Biden’s proposal of gun control in the United States. 8. Wang Mang(王莽) was too a_________ a usurper(篡夺者) because he tried to root out the thousand-year aristocracy(贵族体制) in China, which is still maintained in some countries even now.9. He is a__________ of the economic help from an old man so he decides to give it back by engaging himself in charity work. 10. At the sight of half a bottle of water, o_________ would say: “Great! We still have half a bottle!” while p________ would say: “Pity! Only half is left.”11. There are a lot of things that cannot be accomplished by a single man, the world’s most magnificent projects are all good examples of c__________.12. It is against the law for the companies to require their e__________ to work long hours six days per week. 13. The car accident on Wednesday has caused 3 deaths and 8 i_________, who were sent to hospital and one of them is still in ICU.14. He is so e__________ about journalism so he chooses it as his major in college, hoping that one day he will reveal truths to the public. 15. Every weekend, he would lie c__________ on his bed and watch some of his favorite movies with his iPad to have a relax from the tiredness of the weekdays. 16. M__________ are quite rare about 30 years ago, but now people who own an asset of a million yuan seem quite ordinary, especially in cities with high house prices. 17. Colors may have different meanings in different cultural context, for instance, red s_________ violence and blood in the West but luck and happiness in China. 18. Vocational education(职业教育) should be improved in China so that many young people can prepare themselves better for their future c________.19. Ever since its foundation, the People’s Liberation Army has been sticking to its c__________ to people by showing up whenever there is a disaster.20. In universities, the p_________ not only need to teach the students, but they also have to carry out researches and publish essays. 21. All the powers in the world have come to know the fact that nuclear wars may be the u________ form of human extinction, so no countries dare to use nuclear weapons easily. 22. The video clip from a camera near the murder scene soon proved the suspect was g________.23. When the earthquake happened, the whole family was f_________ enough to have a vacation in another city so that nobody was hurt. 24. Most university students have to live in d_________ in China but they would also seek to rent apartments outside when they are about to graduate. 25. Mother Theresa has d_________ all her life to taking care of the poor and the sick, for which she received the Nobel Peace Prize.26. A sense of g_______ seized him when he thought about his old parents living in the countryside and he could barely spare some time to visit them. 27. A lot of the shoe factories are moving their p________ lines from China to Southeast Asia because of a lower cost of labour. 28. Big cities in China such as Beijing and Shanghai have set a m_________ salary for the low-incomers, which might help in terms of the wealth gap. 29. His application for Harvard University was r_________, for which he has been upset recently. 30. Thanks to the advances in modern farming, now people can produce more grain so that less are suffering from h_________ as people did several decades ago. 31. F_________ cookies are believed to have originated from China but in fact it only exists in the United States.32. Apple has signed a c_________ with Foxconn(富士康), an OEM(代工厂) in order to meet the great demand for the new iPhone 13. 33. With l________ personnel and facilities, Tu Youyou found it hard to carry out the experiments but she still kept working on it until finally she discovered artemisinin.34. Karl Marx was once chosen as “one of the most i________ figures in human history” by BBC for he inspired numerous laborers to fight for their freedom and rights. 35. Some Chinese are very superstitious(迷信的) that they would hire f_________-tellers to tell them about how successful they will be in the fut。