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人教版(2019): 選擇性必修第四冊
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  • 2951.They set May 1 as International
    Day showing respect for workers of all countries.

    發(fā)布:2024/5/23 20:38:36組卷:4引用:1難度:0.7
  • 2952.She has such a kind,friendly
    (personal).

    發(fā)布:2024/5/23 20:38:36組卷:1引用:1難度:0.7
  • 2953.The other day we had an English speech contest.
    I won the first prize in the contest.(定語從句)

    發(fā)布:2024/5/23 20:38:36組卷:5引用:2難度:0.6
  • 2954.She
    (convince) that they will overcome all the difficulties they are coming across.

    發(fā)布:2024/5/23 20:38:36組卷:2引用:1難度:0.6
  • 2955.The new book is about how Shenzhou Ⅳ m
    spaceship was sent up into space.

    發(fā)布:2024/5/23 20:38:36組卷:0引用:2難度:0.7
  • 2956.寫出劃線短語的漢語意思
    The cooking time needed depends on the size of the potato.

    發(fā)布:2024/5/23 20:38:36組卷:0引用:2難度:0.7
  • 2957.寫出劃線單詞的漢語意思
    Only a handful of firms offer share option schemes to all their employees.

    發(fā)布:2024/5/23 20:38:36組卷:0引用:2難度:0.7
  • 2958.Many animals have adaptations that help them cope with specific environments or lifestyles.These special adaptations are written in the genome(基因組)and passed down from generation to generation.This information can help scientists project into the future as well.Reading an animal's genes can help us predict whether an organism(有機(jī)體) might adapt to rapid changes in their environment,like those brought on by climate change,so as to match conservation efforts for at-risk species.
       A group of biologists are associated with the Bird Genoscape Project that is concerned with the effects of a changing climate.They investigated this question by using yellow warblers(黃鶯)and found that some genes looked different in birds from rainy regions when compared with the same genes in birds living in dry zones.These birds have ideally adapted to their local climates.
       But if birds have adapted to their current climate what will happen in the coming years as the climate changes?
       Many regions of the US are predicted to get warmer and drier over the next century.Because the biologists had an idea of which genetic change are ideal for each climate,they could calculate how much the genome sequences of yellow warbler populations would have to change over the next 50 years to match the genetic conditions of yellow warblers in future conditions.Yellow warblers in some regions,like the Rocky Mountains,showed very high levels of genomic vulnerability(脆弱性),suggesting they would need many changes in their genomes to keep up with climate change.Meanwhile,yellow warblers from other regions,like the Midwest,had low genomic vulnerability and were less at risk.
       When we compared genomic vulnerability to changes in yellow warbler populations over the past 50 years,in areas like parts of California and the Rocky Mountains,which had the highest genomic vulnerability,yellow warbler populations have already declined.This could mean that climate change has already affected these populations,and those effects are likely to become even more severe over the next century.

    (1)Why should we study the genes of animals according to the author?

    A.To protect them from extinction.
    B.To study the climate change in history.
    C.To predict the environment in the future.
    D.To know how climate affects their reproduction.
    (2)From the comparison between rainy regions and dry regions,we know that
    .
    A.birds in rainy areas have worse adaptability
    B.the genes of birds are influenced by the environment
    C.global warming has limited effects on birds in dry areas
    D.the environment birds live in determines the order of their genes
    (3)What can we learn about the yellow warblers in the US?

    A.Most of them can adapt to the climate change easily.
    B.Few of them will exist in Rocky Mountains in the future.
    C.Their population is related with the level of genomic vulnerability.
    D.The change in their DNA code can help them adapt to climate change.
    (4)What's the main idea of the passage?

    A.Animals DNA can tell their adaptability.
    B.Yellow warblers are highly vulnerable species.
    C.Changing is the matter of life and death.
    D.Environment affects animals' genome.

    發(fā)布:2024/5/23 20:38:36組卷:12引用:2難度:0.5
  • 2959.推動/迫使…做

    發(fā)布:2024/5/23 20:38:36組卷:1引用:1難度:0.7
  • 2960.In the past decades,the firm's s
    has remained "Always Low Prices".

    發(fā)布:2024/5/23 20:38:36組卷:0引用:0難度:0.9
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