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.

下列各句中均有一处错误，指出并改正。
【小题1】(2019·全国Ⅰ)All the football players on the playground cheered loudly, say that I had a talent for football.
【小题2】(2019·全国III)If I succeed in manage one, I will open more.
【小题3】(2018·全国Ⅰ)My grandpa said last summer they earned quite a lot by sell the fish.
【小题4】(2018·全国II)But no matter how many times I asked to watching them, my parents would not let me.
【小题5】(2018·全国III)Everyone was silent, wait to see who would be called upon to read his or her paragraph aloud.
【小题6】(2018·全国III)Some of us were confident and eager take part in the class activity, others were nervous and anxious.