陕西省2024-2025学年度第一学期七年级期中调研试题（卷）E英语试题-2024届全国大联考答案网

陕西省2024-2025学年度第一学期七年级期中调研试题（卷）E英语试题正在持续更新，目前2024届全国大联考答案网为大家整理了相关试题及答案，供大家查缺补漏，高效提升成绩。

本文从以下几个角度介绍。

(C)28.How did the researchers conduct theird there is a fundamental problem with datingrgressionstudy?on thee percenttive carbon.A.By analyzing medical records ofuse the number of mutations in the genome to date samples,but mutationsanger management patients.may occur faster or slower than"normal".That's a disadvantage of geneticdating.Importantly,not all animals get preserved as fossils,so much of theB.By conducting long-termrecord of life on earth is invisible.Finally.I fear we have ignored part of the evidence-where the iconicobservations of heart disease patients.Australian dingo(渙洲野犬)fits in.The earliest archaeological site inAustralia has been dated to about 65.000 years ago.Researchers whoC.By bringing about emotions andaccept this date can find no trace of dogs or any domestic canids anywnerein the world at this time.Genetic estmeasuring blood vessel health.Australia up to about 18,000 years ago,but there are no dingo bones earlierD.By monitoring participants'bloodthan about 4,000 years ago.Could they have been in Australia so longwithout leaving any traces?gpressure over several months.We take for granted the origins of this species we hold so dear.But toreally understand what a dog is,we need to ask more questions.(D)29.What might be the focus of the new(A)32.What makes it hard to geneticallystudy?identify a dog according to the text?A.Why emotions are linked withA.The unpredictable mutations in themental health.gene sequence.B.When a bad mood should be dealtB.The great difficulty of obtaining thewith.sample.C.What feelings are good for theC.The incomplete genome of thehuman body.species.D.How anger impacted blood vesselD.The large number of the base pairs.health.g(D)30.What does the underlined word(C)33.What can we learn about genetic dating?“cumulative”probably mean inA.It is used more often thanparagraph 5?radiocarbon dating.A.Temporary.B.It is helpful in improvingB.Immediate.radiocarbon dating.C.Unrelated.C.It is less accurate than radiocarbonD.Increasing.dating.D.It is based on radiocarbon dating.gg(C31.What is Dr Shimbo's suggestion for(D)34.Why did the author provide themanaging the health effects of anger?example of the Australian dingo?A.Taking an active part in variousA.To encourage readers to participateactivities.in the research.B.Expressing anger in controlledB.To present mysterious stories aboutenvironments.this species.C.Using medical interventions andC.To explain its relationship withchanging lifestyles.domestic dogs.D.Ignoring negative emotions andD.To highlight the need for additionalfocusing on positive ones.gevidence.D(A)35.What is the best title for the text?The domestication of wolves might set modern humans on the path toA.What is a dog anyway?dominance.But defining what a dog is is really tough.B.How do mutations affect life?First,there is no single characteristic that we can observe in modernor ancient canids(犬科动物)that marks them as dogs.Genetically(从C.When did dogs first appear on基因上)，the number of genes that makes a dog a dog is hard to quantifyEarth?even if we have the whole genome.For example,in maternally inheritedmitochondrial DNA(母系遗传的线粒体DNA),there are about16,000D.Why do researchers employ geneticbase pairs.How many genes must be sequenced to identify a species?Wedon't know because there are mutations (that occur but don't havedating?much effect.How many must be changed to make the sample no longer awolf but a dog?We don't know.5

本文标签：

【在小程序中打开】