分析 人類生長激素是人體產(chǎn)生的一種天然激素,它能夠促進孩子骨骼和肌肉的發(fā)育,科學家允許用它制作藥物,且在很多國家中注射生長激素都是合法的.
然而,現(xiàn)在有些運動員開始注射這種藥物.生長激素能夠促進成年人的生長發(fā)育,且科學家證實注射這種激素能夠使運動員在短途快跑中提高5%的成績.許多運動員聲稱該激素使他們更強壯,且使他們更快的從傷痛中恢復(fù).
由于這種激素不容易檢測,因此很多運動員對他很癡迷.科學家發(fā)明了一種檢測方法,即使是注射兩周后也可以檢測出來.但是這并不容易,因為每個人的身體中都有生長激素.
科學家提醒運動員,注射生長激素可能會導(dǎo)致頭疼,更嚴重的是能夠?qū)е滦呐K肥大,高劑量的生長激素增加癌癥風險.但是這些后果并不能阻止運動員們使用這種激素,因此他們想的只有贏,隨后才會考慮自己的健康.
解答 51.D.推理判斷題.根據(jù)It is a natural substance(物質(zhì)) produced by the human body,and it helps children's bones and muscles(肌肉) to grow.可知,生長激素是人體產(chǎn)生的一種天然物質(zhì),能夠促進兒童骨骼和肌肉的發(fā)育,因此A、B正確;根據(jù)HGH is considered a wonder drug for children.It helps many children with growth problems every year.可知,生長激素對于兒童來說是一種神奇的藥物,它幫助許多兒童克服生長上的問題,因此C正確;D選項文章中并沒有提及;
52.A.段落主旨題.根據(jù)第二段的內(nèi)容,主要講的是然而,現(xiàn)在有些運動員開始注射這種藥物.生長激素能夠促進成年人的生長發(fā)育,且科學家證實注射這種激素能夠使運動員在短途快跑中提高5%的成績.許多運動員聲稱該激素使他們更強壯,且使他們更快的從傷痛中恢復(fù).因此A.some athletes believe HGH can help them do better.是正確的,即有些運動員認為生長激素確實對他們有好處.
53.B.細節(jié)理解題.根據(jù)Testing is usually done only during competitions,but athletes use HGH during training,so it is very difficult to know who has used the drug.This makes it very attractive for some athletes.可知,檢測運動員有無注射激素通常是在比賽的時候才會進行,但是運動員在訓(xùn)練的時候注射生長激素,在比賽的時候很難檢測到,因此很多運動員對這種激素很著迷,原因就是很難檢測出來.
54.C.詞義猜測題.根據(jù)HGH helps add muscle in adults and recent research by the World Anti-Doping Agency shows that HGH may improve the sportsman's time by 5% when he takes part in short,fast races.可知,在一些短途快跑的比賽中項目中,注射生長激素可以提高運動員的比賽成績,因此it is banned by most professional sports,大多數(shù)專業(yè)的運動會上都banned使用生長激素,這里的banned應(yīng)該是禁止.
55.A.細節(jié)理解題.文中最后一段提到注射生長激素的各種弊端,隨后寫到But is this enough to stop athletes from taking it?Scientists don't think so.這是否能夠使運動員們停止使用這種激素,科學家說并不會,緊接著后文寫到Some athletes will do all they can to win,and worry about their health later.一些運動員把贏得比賽放在第一位,其后才會考慮自己的身體,因此科學家害怕一些運動員會忽視生長激素帶來的危險而繼續(xù)使用它,因此答案為A.some athletes will pay no attention to the dangers of using HGH.
點評 本文是一篇科普類文章.做題時要在理解好文意的基礎(chǔ)上,與題目有機的結(jié)合,從文章中找到相關(guān)細節(jié)性的句子與選項細細比對,進行選擇或推理判斷,選出符合文章內(nèi)容的正確選項.做題注意靈活,有時可采用排除法或直選法確定出最終答案.
科目:初中英語 來源: 題型:書面表達
查看答案和解析>>
科目:初中英語 來源: 題型:書面表達
查看答案和解析>>
科目:初中英語 來源: 題型:閱讀理解
查看答案和解析>>
科目:初中英語 來源: 題型:書面表達
查看答案和解析>>
科目:初中英語 來源: 題型:閱讀理解
查看答案和解析>>
科目:初中英語 來源: 題型:完形填空
16.A.wet | B.round | C.far | D.deep |
17.A.listen to | B.look forward to | C.move to | D.turn to |
18.A.leave | B.jump | C.try | D.stop |
19.A.broke up | B.got up | C.gave up | D.looked up |
20.A.fast | B.far | C.gladly | D.hard |
21.A.quickly | B.finally | C.slowly | D.possibly |
22.A.hear | B.see | C.need | D.know |
23.A.cheerful | B.great | C.deaf | D.surprised |
24.A.laughing | B.greeting | C.frightening | D.encouraging |
25.A.example | B.lesson | C.saying | D.way |
26.A.lies | B.stories | C.words | D.books |
27.A.down | B.relaxed | C.bored | D.a(chǎn)ngry |
28.A.on | B.a(chǎn)round | C.into | D.through |
29.A.help | B.kill | C.surprise | D.hurt |
30.A.easy | B.strange | C.hard | D.surprising. |
查看答案和解析>>
科目:初中英語 來源: 題型:書面表達
Hi!Li Hua, I am living in Chengdu now.I was very lucky that I spent the Spring Festival with my host family.It was surprising and interesting that I received lucky money in the red paper from my host parents.Did you get lucky money this year?How do you usually spend it?And what can I do with the money? I'm looking forward to hearing from you soon. Yours, Peter |
Hi!Peter, I'm glad to know you are having a good time in Chengdu.TheSpring Festival is the most important festival in China.Giving lucky money tochildren is a custom.I get lucky money every year.I will put most of it inthe bank,and spend the rest on some books.This year,I also got lucky money.With it,I bought some school things for several poor students in Ningxia. Foryou,I think it's a good idea to buy a gift with the lucky money for your hostfamily before you leave China.You can also buy some Chinese gifts for your parents and friends in England.Or,just keep it as good memories. I hope what I said can help you. Yours, Li Hua |
查看答案和解析>>
科目:初中英語 來源: 題型:選擇題
A. | is; with | B. | is; for | C. | are; for | D. | are; with |
查看答案和解析>>
湖北省互聯(lián)網(wǎng)違法和不良信息舉報平臺 | 網(wǎng)上有害信息舉報專區(qū) | 電信詐騙舉報專區(qū) | 涉歷史虛無主義有害信息舉報專區(qū) | 涉企侵權(quán)舉報專區(qū)
違法和不良信息舉報電話:027-86699610 舉報郵箱:58377363@163.com