Some people have very good memories, and can easily learn quite long poems by __heart__ . There are other people who can only __remember__ things that they have said again and again.
A _good__ memory is a great help in learning a language. __Everybody__ learns his own language by remembering __what__ he hears when he is a small child. Some children __don’t_live_in their own country, and they seem to learn two languages ___almost__ as easily as one. In school it is not so easy to learn __a__ foreign language because students have so __little __time for it and they are busy with other lessons, too.
A man’s mind is rather like a camera, but it takes photos not only _of_ what we see but also of what we feel, hear, smell and taste. When we take a real photo__with__a camera, there is much to do when the photo is finished and __ready__to show to our friends. In the same way there is much work __to be done__ before we can keep a picture __forever__ in our minds.
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| 【小題11】 |
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| 【小題15】 |
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【小題1】B
【小題1】A
【小題1】C
【小題1】A
【小題1】C
【小題1】D
【小題1】B
【小題1】A
【小題1】D
【小題1】B
【小題1】D
【小題1】D
【小題1】B
【小題1】A
【小題1】D
解析【小題1】考查詞性的變化。在動(dòng)詞learn前面當(dāng)用副詞easily
【小題2】題意表示很容易地背誦長(zhǎng)詩(shī)。背誦，learn by heart
【小題3】依據(jù)上下文為記住。notice 注意，recognize 認(rèn)出，remember 記住，learn 學(xué)習(xí)
【小題4】依據(jù)上下文知此處為“好的記憶力”。
【小題5】句意為“每個(gè)人學(xué)習(xí)語(yǔ)言時(shí)”
【小題6】考查賓語(yǔ)從句，用what引導(dǎo)，充當(dāng)從句的賓語(yǔ)。
【小題7】考查時(shí)態(tài)的變化。此處一般現(xiàn)在時(shí)表示一直不住在自己國(guó)家的狀態(tài)。
【小題8】依據(jù)上下文，此處要表達(dá)“幾乎就像學(xué)習(xí)一門(mén)語(yǔ)言一樣”
【小題9】 foreign language是泛指，當(dāng)用不定冠詞a
【小題10】many和few后跟可數(shù)名詞，much和little后跟不可數(shù)名詞。Many和much表示多，little和few表示少。
【小題11】固定搭配take photos of，為…拍照。
【小題12】with表示使用事物完成一件事。
【小題13】 ready此處表示已經(jīng)準(zhǔn)備好，可以使用
【小題14】用不定式的被動(dòng)形式，表示需要完成
【小題15】依據(jù)上下文，此處表示長(zhǎng)久的，永遠(yuǎn)的記住。
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The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin colour without damaging it like chemical treatment did on Michael Jackson.
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C. pop king Michael Jackson often changed his skin colour as he liked
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B. Europeans and Africans have the same gene
C. the new discovery could help to find medical treatments for skin cancer
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Scientists have done an experiment on a dark-striped zebra fish in order to ________.
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C. find out the reason why the Africans’ skin colour is dark
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The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin colour without damaging it like chemical treatment did on Michael Jackson.
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But when modern humans leave Africa to live in northern latitudes, they need more sunlight on their skin to produce vitamin D. So the related gene changes, according to Cheng.
Asians have the same version of the gene as Africans, so they probably acquired their light skin through the action of some other gene that affects skin colour, said Cheng.
The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin colour without damaging it like chemical treatment did on Michael Jackson.
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B. the new discovery could lead to search into ways to change skin colour safely
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A. find the different genes of humans’
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C. find out the reason why the Africans’ skin colour is dark
D. find out the ways of changing peopl’s skin colour
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A. they are born light-skinned people
B. light-skinned Europeans have mutation in the gen for melanosome production
C. they have fewer activities outside
D. they pay much attention to protecting their skin
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Can people change their skin colour without suffering like pop king Michael Jackson? Perhaps yes. Scientists have found the gene that determines skin colour.
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Scientists have changed the colour of a dark-striped zebrafish to uniform gold by inserting a version of the pigment(色素) gene into a young fish. As with humans, zebrafish skin colour is determined by pigment cells, which contain melanosomes(黑色素). The number, size and darkness of melanosomes per pigment cell determines skin colour.
It appears that, like the golden zebrafish, light-skinned Europeans also have a mutation(變異) in the gene for melanosome production. This results in less pigmented skin.
However, Keith Cheng, leader of the research team, points out that the mutation is dif ferent in human and zebrafish genes.
Humans acquired dark skin in Africa about 1.5 million years ago to protect bodies from ultra-violet rays of the sun(太陽(yáng)光紫外線), which can cause skin cancer.
But when modern humans leave Africa to live in northern latitudes, they need more sunlight on their skin to produce vit amin D. So the related gene changes, according to Cheng.
Asians have the same version of the gene as Africans, so they pr obably acquired their light skin through the action of some other gene that affects skin colour, said Cheng.
The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin colour without damaging it like chemical treatment did on Michael Jackson.
1.. The passage mainly tells us that ________.
A. people can not change their skin colour without any pain
B. the new discovery could lead to search into ways to change skin colour safely
C. pop king Michael Jackson often changed his skin colour as he liked
D. scientists have found out that people’s skin colour is determined by the gene
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A. find the different genes of humans’
B. prove the humans’ skin colour is determined by the pigment gene
C. find out the reason why the Africans’ skin colour is dark
D. find out the ways of changing peopl’s skin colour
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B. light-skinned Europeans have mutation in the gene for melanosome production
C. they have fewer activities outside
D. they pay much attention to protecting their skin
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