用作形容词 (adj.)
Their cars headed the
funeral">funeral
procession.
他们的车队在葬礼队伍的最前面。
用作名词 (n.)
They held a state
funeral">funeral
in honour of the statesman.
他们为这位政治家举行了国葬。
第四页:中英双语听力稿
BBC News with Marion Marshall.
Marion Marshall为你播报BBC新闻。
Researchers developing a vaccine against malaria have published results showing a high success rates so far. The scientists at an American biotech company irradiated mosquitoes to weaken the malaria causing parasites they carry. The enfeebled parasites were then injected into humans to trigger an immune response. Naomi Grimley reports. “Scientists have known for a while that if a human is bitten by malaria carrying mosquitoes which have been weakened by radiation. That person might build up immunity, but it might take as many as a thousand bites to make that happen. Now an American biotech company in Maryland has built on that knowledge. Researchers irradiated mosquitoes extracted the malaria causing parasites and injected them into volunteers, 12 out of the 15 who'd been given the highest dose, then developed immunity.”
研发疟疾疫苗的研究人员公布了研究结果,迄今为止该疫苗呈现出高成功率。美国一家生物科技公司的科学家通过辐照蚊子削弱蚊子携带的疟疾寄生虫,之后注射这些变弱的寄生虫至人体来引发免疫反应。Naomi Grimley报道。“科学家早已证实,如果被携带疟疾的蚊子叮咬,而疟疾已被辐射变得衰弱,被叮咬者就会产生免疫力,但前提是被叮咬一千次。目前美国马里兰州一家生物科技公司在此理论上有所进展,研究人员辐照蚊子后,提取并注射疟疾寄生虫至15名志愿者体内,其中12人注射了最高剂量,之后产生了免疫力。”