单句语法填空
【小题1】(2019·全国Ⅰ)Modern methods of tracking polar bear populations have been employed only since the mid-1980s, and are expensive __________(perform) consistently over a large area.
【小题2】(2019·全国Ⅰ)Scientists have responded by __________(note) that hungry bears may be congregating(聚集) around human settlements, leading to the illusion(错觉) that populations are higher than they actually are.
【小题3】(2019·全国II)A 90-year-old has been awarded “Woman Of The Year” for __________(be) Britain’s oldest full-time employee—still working 40 hours a week.
【小题4】(2019·全国II)Picking up her “Lifetime Achievement” award, proud Irene declared she had no plans __________(retire) from her 36-year-old business.
【小题5】(2019·全国II)When we got a call __________(say) she was short-listed, we thought it was a joke.
【小题6】(2019·全国III)On the last day of our week-long stay, we were invited to attend a private concert on a beautiful farm on the North Shore under the stars, __________(listen) to musicians and meeting interesting locals.
【小题7】(2018·全国Ⅰ)You don’t have to run fast or for long __________(see) the benefit.
【小题8】(2018·全国Ⅰ)You may drink, smoke, be overweight and still reduce your risk of __________(die) early by running.
【小题9】(2018·全国II)The government encourages farmers to grow corn instead of rice __________(improve) water quality.
【小题10】(2018·全国II)China’s approach to protecting its environment while __________(feed) its citizens offers useful lessons for agriculture and food policymakers worldwide.
【小题11】(2018·全国III)I quickly lower myself, ducking my head to avoid __________(look) directly into his eyes so he doesn’t feel __________(challenge).
【小题12】(2018·全国III)Once his message was delivered, he allowed me __________(stay) and watch.
【小题13】(2017·全国Ⅰ)They are required __________(process) the food that we eat.
【小题14】(2017·全国Ⅰ)By __________(eat) more fast food people will get more salt and fat than they need in their diet.
【小题15】(2017·全国II)This included digging up the road, __________(lay) the track and then building a strong roof over the top.
【小题16】(2017·全国III)But unlike school friends, 16-year-old Sarah is not spending half-term __________(rest).
【小题17】(2017·全国III)But Sarah, who has taken part in shows along with top models, wants __________(prove) that she has brains as well as beauty.