高三英语外刊阅读语法填空December 3.docx

高中英语外刊阅读语法填空December 31奥密克戎毒株为何“需要关注”，现有防疫工具是否有效Omicron: everything you need to know about new Covid variantWhat is it called? The variant （变异株）was 1_(initial) referred to as B.1.1.529, but on Friday was designated (命名) as a variant of concern (VOC) by the World Health Organization because of its “concerning” mutations and because “preliminary evidence suggests an increased risk of reinfection（再次感染） with this variant”. The WHO system assigns such variants a Greek letter, to provide a non-stigmatising（不污名化） label that does not associate new variants with the location 2_ they were first detected. The new variant has been called Omicron. The B.1.1.529 variant was identified on Tuesday and highlighted as a concern due 3_its high number of mutations(突变), which could lead it to evade(逃避) immunity. It was also linked to a surge(激增) in case numbers in the Gauteng province of South Africa, the UK Health and Security Agency describing the variant as the “most 4_(worry) weve seen”. Although initially linked to Gauteng, the variant did not necessarily originate there. The 5_(early) sample showing the variant was collected in Botswana on 11 November. Scientists say that the unusual constellation （大量，系列）of mutations(突变) suggests it may have emerged during a chronic infection of an immunocompromised（免疫功能低下的） person, such as an untreated HIV/Aids patient. The variant has more than 30 mutations on its spike protein（刺突蛋白） the key 6_(use) by the virus to unlock our bodys cells more than double the number carried by Delta. Such a dramatic change has raised concerns that the antibodies(抗体) from previous infections or vaccination may no longer be well matched. Scientists are concerned by the number of mutations and the fact some of them have already been linked to 7_ ability to evade existing immune protection. These are theoretical(理论上的) predictions, though, and studies are rapidly being conducted 8_(test) how effectively antibodies neutralize the new variant. Real-world data on reinfection rates will also give a clearer indication on the extent of any change in immunity. Scientists do not expect that the variant will be entirely unrecognizable(无法识别) to existing antibodies, just that current vaccines may give less 9_(protect). So a crucial objective remains to increase vaccination rates, 10_(include) third doses for at-risk groups.keys:1 initially 2 where 3 to 4 worrying 5 earliest6 used 7 an 8 to test 9 protection 10 including 2未来10年770万人或死于艾滋病World could face over 7 million AIDS-related deaths over the next 10 yearsUNAIDS(联合国艾滋病规划置) issued a stark warning Monday that if leaders fail 1_(solve) inequalities, the world could face 7.7 million AIDS-related deaths over the next 10 years. At least 300,000 children were 2_(new) infected with HIV in 2020, or one child every two minutes. Another 120,000 children died from AIDS-related causes during the same period, or one child every five minutes. “Progress against the AIDS pandemic, 3_was already off track, is now under even greater strain as the COVID-19 crisis continues to rage, 4_(disrupt) HIV prevention and treatment services, schooling, violence-prevention programmes and more. We cannot be forced 5_(choose) between ending the AIDS pandemic today and preparing for the pandemics of tomorrow. The only successful approach will achieve both. As of now, we are not on track to achieve either.” Some countries, including some with the highest rates of HIV, have made 6_(remark) progress against AIDS, illustrating what is feasible(可行的). However, new HIV infections are not falling fast enough globally to stop the pandemic, with 1.5 million new HIV infections in 2020 and growing HIV infection rates in some countries. 7_(infect) are also following lines of inequality. Six in seven new HIV infections among adolescents in sub-Saharan Africa are occurring among adolescent girls. COVID-19 is undercutting the AIDS response in many places. The pace of HIV testing declined almost uniformly and fewer people living with HIV initiated treatment in 2020 in 40 of 50 countries reporting to UNAIDS. HIV prevention services have been impactedin 2020, harm reduction services for people 8_use drugs were disrupted in 65% of 130 countries surveyed. “9_ is still possible to end the epidemic by 2030,” affirmed United Nations Secretary-General António Guterres in his World AIDS Day message. “But that will require stepped up action and 10_(great) solidarity(团结). To beat AIDSand build resilience against the pandemics of tomorrowwe need collective action.”keys:1 to solve 2 newly 3 which 4 disrupting 5 to choose6 remarkable 7 Infections 8 who 9 It 10 greater 3 Tree-climbing class takes root in Hubei爬树课程在湖北扎根A tree-climbing class 1_(grow) popular among students at the Sport Institute of Hubei University recently , as more and more people are showing interest 2_ learning the tricks of the trade for scaling timber(爬树).At a class on Monday, Lu Junpei showed 16 students some of the 3_(important) techniques. After putting on a helmet, fastening straps and tying rope knots, Lu spent 4_(little) than eight minutes 5_(reach) the top of a 25-meter tree.Because more and more students are showing interest, the school plans 6_(add) more seats to the class to allow more students to learn and practice, said Lu, 7_ is also a member of the Enshi Blue Sky Rescue Team.Hubei University is one of the first 8_(university) in China to include 9_(course) on tree climbing. Teachers and students at the university 10_(win) two golds and two silvers at the Hong Kong Tree Climbing Championship in 2017.keys:1 has grown 2 in 3 most important 4 less 5 reaching6 to add 7 who 8 universities 9 courses 10 won