To prevent the spread of the novel coronavirus，governments at every level in China have been using many different control measures.
    In heavily一affected areas，the government has chosen to lock down cities.The decision proved effective（有效的）in stopping the virus' spread at its root.
    In some villages，people put up red banners（條幅）or used loudspeakers to educate people about the virus.Many communities also set up checkpoints to check people's temperatures，keep records of their travel history，keep non—residents（非住戶）out of the community，and make sure that people quarantine（隔離）themselves after returning from high--risk areas.Some community workers also help those who are quarantined at home by bringing in food or drugs，taking out the garbage，and offering psychological（心理的）advice.The community workers have built the first line of defense（防御）______the virus across China.There are millions of community workers in 650，000 urban and rural communities across the country.Many people from all walks of life have volunteered to do this job.
    "In the face of an unexpected outbreak，it's amazing to see that China could mobilize（動(dòng)員）people on such a large scale（規(guī)模），"Li Baoping from the Ningxia Academy of Social Sciences told Xinhua."Great governance capacity（治理能力）at all levels gives us confidence in winning the battle."

（1）What does the underlined word "its" in paragraph 2 refer to ？（根據(jù)短文回答問題）

virus'

virus'

（2）What do the community workers do to help people quarantined at home？（List at least 2 points）（根據(jù)短文回答問題）

Bring food or drugs，take out the garbage，and offer psychological advice.

Bring food or drugs，take out the garbage，and offer psychological advice.

（3）Fill in the blank with a proper preposition.（在空白處填入一個(gè)恰當(dāng)?shù)慕樵~）

against

against

（4）Translate the underlined sentence into Chinese.（將劃線句子翻譯成漢語）

面對(duì)突如其來地疫情大爆發(fā)，看到中國能如此大規(guī)模的動(dòng)員群眾著實(shí)令人震驚。

面對(duì)突如其來地疫情大爆發(fā)，看到中國能如此大規(guī)模的動(dòng)員群眾著實(shí)令人震驚。

（5）Give a proper title for the passage.（給文章擬一個(gè)恰當(dāng)?shù)臉?biāo)題）

Governments at every level fights .

Governments at every level fights .