1.   Ecotourism is commonly regarded as low impact (影响)travel to undisturbed places. It is different from traditional tourism because it allows the traveler to become _ (educate) about the areas - both in terms of geographical conditions and cultural characteristics, and often provides money for conservation and benefits the _ (develop) of the local areas.   Ecotourism has _ (it) origin with the environmental movement of the 1970s. It was not widely accepted as a travel concept _ the late 1980s. During that time, increasing environmental awareness made it desirable.   Due to _ growing popularity of environmentally-related and adventure travel, various types _ trips are now being classified as ecotourism. Actually, a true eco-friendly trip must meet the following principles: • Minimize the impact of _ (visit) the place. • Build respect for and awareness of the environment and cultural practices. • Provide _ (finance) aid and other benefits for local peoples. • Make sure that the tourism provides positive experiences for both the visitors and the hosts.   Komodo National Park, officially recognized in 1980, is popular for ecotourism because of its unique biodiversity. _ (activity) there range from whale watching to hiking (远足) and accommodations aim _ (have) a low impact on the natural environment.

语法填空 2021年 ● 安徽卷

2.   The polar bear is found in the Arctic Circle and some big land masses as far south as Newfoundland. While they are rare north of 88°, there is evidence _ they range all the way across the Arctic, and as far south as James Bay in Canada. It is difficult to figure out a global population of polar bears as much of the range has been _ (poor) studied; however, biologists calculate that there are about 20,000 - 25,000 polar bears worldwide.   Modern methods _ tracking polar bear populations have been employed only since the mid-1980s, and are expensive _ (perform) consistently over a large area. In recent years some Inuit people in Nunavut _ (report) increases in bear sightings around human settletments, leading to a _ (believe) that population are increasing. 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 _ (high) than they actually are. Of _ nineteen recognized polar bear subpopulations, three are declining, six _ (be) stable, one is increasing, and nine lack enough data.

语法填空 2019年 ● 全国卷Ⅰ

3. Does the name of the college you attend really matter? Research on the question _ (suggest) that, for most students, it doesn't. What students do at college seems to matter much more than _ they go. The students benefiting most from college are those _ are totally engaged(参与) in academic life, taking full advantage of the college's chances and resources (资源). Students should have a proper attitude towards college before thinking about which college to attend, and its never too early to make necessary preparations for a healthy and _ (meaning) college experience.

语法填空 2019年 ● 北京卷

4. Earth Day, _ (mark) on 22 April, is an annual event aiming to raise public awareness about environmental protection. First celebrated _ 1970, the Day now includes events in more than 190 countries and regions (地区). No matter what you like to do, there is a way to get involved in various _ (activity) on Earth Day. You can plant a tree, make a meal with locally grown vegetables , or save power — the possibilities are endless.

语法填空 2019年 ● 北京卷

5. On the first day of my first grade, I stood by the door with butterflies in my stomach. I _ (voice) my biggest concern to my mother, "How will I make friends?" She handed me advice, "Be yourself. " For the past 20 years,I have lived by these words. Soon I will graduate and become part of the real world. Nervously _ (face) challenges, I know I will whisper to _ (I) the two simple words "Be yourself" .

语法填空 2019年 ● 北京卷

6.   There are several reasons why school uniforms are a good idea. First of all, uniforms help the school look smart. The students feel that they belong to a particular group. When every pupil in the school wears the uniform, nobody _ ( have) to worry about fashion (时尚). Everybody wears _ same style of clothes. Uniforms can be useful in unexpected ways. A school in Ireland has introduced an interesting new uniform. On the edge of the jacket, there is a piece of cloth _ gives off light in the dark. When the children are walking or _ ( cycle) to school on dark mornings, car drivers can _ (easy) see them.   But can uniforms help improve school standards? The answer _ this question is not clear. One study in America found that students' grades _ ( improve) a lttle after the school introduced uniforms. But some students didn't want _ ( wear) the uniform. Other American studies showed no _ ( connect) between uniforms and school performance.   School uniforms are _ ( tradition) in Britain, but some schools are starting to get rid of them. Some very good schools don't have a uniform policy. However, uniforms are still popular. Pupils at about 90 percent of British secondary schools wear uniforms.

语法填空 2019年 ● 浙江卷