
青蒿素治療瘧疾效果顯著,是抵抗瘧疾耐藥性最好的藥物。中國(guó)發(fā)現(xiàn)青蒿素時(shí),美國(guó)也研制出一種抗瘧新藥—化學(xué)合成的甲氟喹,但瘧原蟲(chóng)很快就適應(yīng)了它,產(chǎn)生耐藥性,臨床使用后患者還出現(xiàn)了明顯的不良反應(yīng)。而對(duì)于青蒿素這種從中草藥中提取的藥物,瘧原蟲(chóng)對(duì)它完全沒(méi)有抵抗能力。1976 年1月,柬埔寨爆發(fā)瘧疾,因瘧原蟲(chóng)已經(jīng)產(chǎn)生耐藥性,疫情一時(shí)難以控制。中國(guó)醫(yī)療隊(duì)攜帶一批青蒿素在柬埔寨大顯神威,挽救了一大批瘧疾患者的生命。

媽媽19歲嫁給爸爸。外婆生育了6個(gè)孩子,還領(lǐng)養(yǎng)了一個(gè),但媽媽是唯一的女兒,在那個(gè)年代,雖然說(shuō)不上能享受到多少寵愛(ài),但至少?zèng)]有遭受過(guò)任何對(duì)女性的輕慢,媽媽甚至還念到初中畢業(yè),字寫(xiě)得比我還好,能自由閱讀文學(xué)作品。

在廚房蒸饅頭的母親,揭開(kāi)鍋蓋高興地說(shuō)到:“饅頭笑了?!蔽覜](méi)看出來(lái),就問(wèn)她怎么笑的。母親說(shuō):“就是饅頭開(kāi)口了,過(guò)年了,討個(gè)吉利,所以要說(shuō)笑了才行?!?/p>

古詩(shī)是一幅幅草木明凈的“無(wú)聲畫(huà)”。蘆葦搖曳,先民低唱“①______,白露為霜”(《<詩(shī)經(jīng)>二首》);登樓遠(yuǎn)眺,崔顥吟誦“②______,芳草萋萋鸚鵡洲”(《黃鶴樓》);持節(jié)塞上,王維長(zhǎng)嘆“ ③_____,歸雁入胡天”(《使至塞上》);羈旅天涯,馬致遠(yuǎn)感慨“④______,小橋流水人家,古道西風(fēng)瘦馬”(《天凈沙·秋思》)。

海上有一座冰山,陽(yáng)光下,光芒四射,像一顆巨大的鉆石。大鳥(niǎo)被迷住了,迅速飛了下去。其他大鳥(niǎo)紛紛向它呼喚,催它趕路,可它還是一個(gè)勁地飛向了冰山。

愛(ài)蓮說(shuō)周敦頤水陸草木之花,可愛(ài)者甚蕃。晉陶淵明獨(dú)愛(ài)菊。自李唐來(lái),世人甚愛(ài)牡丹。予獨(dú)愛(ài)蓮之出淤泥而不染,濯清漣而不妖,中通外直,不蔓不枝,香遠(yuǎn)益清,亭亭凈植,可遠(yuǎn)觀而不可褻玩焉。

題稚川山水【唐】戴叔倫松下茅亭五月涼,汀沙云樹(shù)晚蒼蒼。行人無(wú)限秋風(fēng)思,隔水青山似故鄉(xiāng)。注:戴叔倫,唐代詩(shī)人,此詩(shī)作于作者宦游途中。

在賀龍、關(guān)向應(yīng)所率八路軍120師連續(xù)粉碎日軍三次圍攻后,1939年4月23日上午9時(shí),敵人又在炮火掩護(hù)下對(duì)齊會(huì)村發(fā)起了攻擊。進(jìn)村的道路上有一座小橋,小橋失守后,村中央最高處的大槐樹(shù)就暴露在敵人的火力網(wǎng)前。我們的戰(zhàn)士隱蔽在大槐樹(shù)后向敵人射擊,敵人的輕重武器一起射向大槐樹(shù),樹(shù)上留下無(wú)數(shù)彈痕,一顆炮彈正好打在樹(shù)干上,大槐樹(shù)被攔腰炸斷。

我的第一個(gè)記憶是一歲多有的。那是在青島,門(mén)外來(lái)了個(gè)老道,對(duì)我父親說(shuō),14號(hào)那天,往小胖子(我當(dāng)時(shí)比較胖)左手腕上系一圈紅線(xiàn)就可以消災(zāi),我當(dāng)時(shí)嚇得哇哇大哭,父親卻聽(tīng)從了老道的安排。他說(shuō):“二看小胖子手腕的紅線(xiàn),我覺(jué)得比寫(xiě)二本偉大的作品還驕傲?!?/p>

夜來(lái)似聞某人素心,明日試往看之,入其門(mén),窺其閨,見(jiàn)所謂某人方據(jù)案面南看一文書(shū)。顧客入來(lái),默然一揖,便拉袖命坐,曰:“君既來(lái),可亦試看此書(shū)?!毕嗯c歡笑。日影盡去,既已自饑,徐問(wèn)客曰:“君亦饑耶?”不亦快哉!

Antarctica is a continent (大陸) of ice. There is hardlyany rain in Antarctica, so the Antarctic Desert becomes the driest desert inthe world. It is also the world’s largest desert by area.

Lu Junling, a security guard from Hebei University, became popularon the Internet. As an ordinary (平凡) person, though Lu Junling is more than 50 years old, hememorizes English vocabulary for CET 6 under the street lights every day justto improve himself. When he is free, he also writes novels and sings operas.That’s not all! Painting, music, kongfu, ancient poems, etc. are all hishobbies. So a number of people call him “treasure security guard (寶藏保安)”. Lu Junling said, “If I want to become an artist, I will alwayswork hard for my dream!” Mr. Lu’s words live in many people’s memory.

Ibelieved that I was right and he was wrong, and Tony believed that I was wrongand he was right. Our teacher, a kind and smart lady, decided to teach us alesson. She brought us to the front of the class and placed him on one side ofher desk and me on the other. In the middle of her desk was a large and roundobject. I could clearly see that it was black. The teacher asked us what colorthe object was. “White,” Tony answered. I couldn’t believe he said the objectwas white! “Clearly, it was black!” Another argument started between Tony andme, this time about the color of the object.

Ibelieved that I was right and he was wrong, and Tony believed that I was wrongand he was right. Our teacher, a kind and smart lady, decided to teach us alesson. She brought us to the front of the class and placed him on one side ofher desk and me on the other. In the middle of her desk was a large and roundobject. I could clearly see that it was black. The teacher asked us what colorthe object was. “White,” Tony answered. I couldn’t believe he said the objectwas white! “Clearly, it was black!” Another argument started between Tony andme, this time about the color of the object.

Ibelieved that I was right and he was wrong, and Tony believed that I was wrongand he was right. Our teacher, a kind and smart lady, decided to teach us alesson. She brought us to the front of the class and placed him on one side ofher desk and me on the other. In the middle of her desk was a large and roundobject. I could clearly see that it was black. The teacher asked us what colorthe object was. “White,” Tony answered. I couldn’t believe he said the object waswhite! “Clearly, it was black!” Another argument started between Tony and me,this time about the color of the object.

By usingthis method, the study found that red meats were the most unfriendly foods tothe environment. Keeping farm animals produces a large number of methane(甲烷)that keeps 30 times more heat than CO2. As well asmaking the earth warmer, eating too much red meat is known to increase the riskof a few illnesses, such as heart trouble.

We allknow that rice, wheat and corn are staples, but do you know there is anotherkind of staple food—potatoes? Potatoes have many advantages. Theyare a good source of vitamin C and potassium(鉀). A potato’s vitamin C isas rich as 10 apples. What’s more,potatoes are low in calories(卡路里)-onlythree fourths of the same amount of wheat and corn, according to People’s Daily. Potatoes are easy togrow. It can be grown in both the north and the south during winter, spring andautumn. The plant is also able to bear drought(干旱). Some areas of China arefacing water shortages, so the potato is safe to grow.

Chopsticksoriginated from(起源于) China.Though simple and little, they are agreat invention in the history of humans. There are many legends aboutChopsticks, Da Yu and Chopsticks is one of them.It issaid that during Yao and Shun times, Shun ordered Yu to control the flood. Oneday, Yu took a boat to an island, he was so hungry that he used an earth pot tocook meat. After the meat was well-done in boiled water, he didn’t want towaste time to wait for it to cool, so he took two branches to pick up the meatfrom the soup. After, to save time, he always took small branches to take outfood from the hot pot. For a long time, he was skilled at picking up food withsmall sticks. In this way, the first types of chopsticks were born.

Mostschools offer different kinds of subjects and activities for students, but someschools offer additional training in certain areas, such as the performing andarts. In this way, schools can help students develop their artistic talentsfrom an early age and have greater success in their future profession. THE ROYAL BALLET(芭蕾舞)SCHOOL

Locatedin the mountains about 100 miles from Los Angeles, the Idyllwild Arts Academyis a boarding school for young artists. It offers training in arts, likedrawing, painting, photography and cinema, along with programmes for theperforming arts. The school’s quiet, rural location also makes it a verypeaceful and beautiful place to learn. THE NATIONAL CIRCUS(雜技)SCHOOL
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