注釋：
1. beauty product：美容產(chǎn)品
2. quantum dot (QD)：量子點?？扇〈鷤鹘y(tǒng)染色法，成為細(xì)胞內(nèi)的熒光標(biāo)記物，可進行長時間、多分子、同時檢測。
3. give off：放出；發(fā)出（蒸汽、光線、煙霧、氣味等）
4. Researchers are studying ways to program them to identify diseases by lighting up in the presence of a targeted molecule. 研究人員正在研究為它們編程的方法，以便如果有靶分子存在時能通過發(fā)光辨認(rèn)疾病。light up點燈；發(fā)光。targeted molecule：靶分子。
5. National Institutes of Health (NIH)：國立衛(wèi)生研究院
6. side effect：副作用
7. compared to larger particles如果與大一點的顆粒比較起來的話。這是一個過去分詞短語，作條件狀語。compare…to在美國英語也可以表示compare…with的意思。
練習(xí)：
1. Which of the following uses of nanotechnology is NOT mentioned in the passage?
A) To make beauty products and dirt-resistant clothing.
B) To produce better and lighter building materials.
C) To help more accurately diagnose diseases.
D) To help more effectively treat diseases.
2. How can quantum dots be used to confirm diseases?
A) By traditionally looking at a person's blood under a microscope.
B) By letting a person take some kind of medicine.
C) By lighting up in the presence of a targeted molecule.
D) By subjecting a person to an X-ray examination.
3. How can nanotechnology be used to make a drug more effective?
A) By making a drug target the focus of a disease.
B) By changing the structure of the body cells.
C) By lowering the side effects caused by a drug.
D) By letting a patient take a dose as large as possible.
4. The following developing countries are doing very well scientific research on nanotechnology EXCEPT .
A) China
B) Brazil
C) Iran
D) India
5. Which of the following is the possible risk in using nano-materials mentioned in the passage?
A) They may cause some damage to the body cells.
B) They are harmful materials themselves.
C) They may store in the body.
D) They may behave differently in the body and the environment.
答案與題解：
1. B 本題選項A在第一段第三句提到，選項C在第二段倒數(shù)第二句和第四段第一句提到，選項D則在第四段第二、三、四句提到，只有選項B全文均未提及。
2. C 第三段最后兩句說到，如果存在靶分子的話，量子點就會發(fā)光，以此辨認(rèn)疾病，這正是本題答案。
3. A 第四段全段都在講納米技術(shù)如何提高藥物療效，而中心就在于納米技術(shù)能使藥物對準(zhǔn)疾病病灶（文章中實際是舉已經(jīng)研發(fā)的治癌藥為例）從而提高藥物療效。
4. C 第五段第二句已經(jīng)說得很清楚，其中并沒有Iran。
5. D 第五段第三、四句說到，納米材料的顆粒在體內(nèi)和在體外環(huán)境中作用可能不太一樣，因此可能存在某種危險性。其實言外之意還存在未知數(shù)，所以后一句才說需要更多投入以便搞清它們的危險性。
1. beauty product：美容產(chǎn)品
2. quantum dot (QD)：量子點?？扇〈鷤鹘y(tǒng)染色法，成為細(xì)胞內(nèi)的熒光標(biāo)記物，可進行長時間、多分子、同時檢測。
3. give off：放出；發(fā)出（蒸汽、光線、煙霧、氣味等）
4. Researchers are studying ways to program them to identify diseases by lighting up in the presence of a targeted molecule. 研究人員正在研究為它們編程的方法，以便如果有靶分子存在時能通過發(fā)光辨認(rèn)疾病。light up點燈；發(fā)光。targeted molecule：靶分子。
5. National Institutes of Health (NIH)：國立衛(wèi)生研究院
6. side effect：副作用
7. compared to larger particles如果與大一點的顆粒比較起來的話。這是一個過去分詞短語，作條件狀語。compare…to在美國英語也可以表示compare…with的意思。
練習(xí)：
1. Which of the following uses of nanotechnology is NOT mentioned in the passage?
A) To make beauty products and dirt-resistant clothing.
B) To produce better and lighter building materials.
C) To help more accurately diagnose diseases.
D) To help more effectively treat diseases.
2. How can quantum dots be used to confirm diseases?
A) By traditionally looking at a person's blood under a microscope.
B) By letting a person take some kind of medicine.
C) By lighting up in the presence of a targeted molecule.
D) By subjecting a person to an X-ray examination.
3. How can nanotechnology be used to make a drug more effective?
A) By making a drug target the focus of a disease.
B) By changing the structure of the body cells.
C) By lowering the side effects caused by a drug.
D) By letting a patient take a dose as large as possible.
4. The following developing countries are doing very well scientific research on nanotechnology EXCEPT .
A) China
B) Brazil
C) Iran
D) India
5. Which of the following is the possible risk in using nano-materials mentioned in the passage?
A) They may cause some damage to the body cells.
B) They are harmful materials themselves.
C) They may store in the body.
D) They may behave differently in the body and the environment.
答案與題解：
1. B 本題選項A在第一段第三句提到，選項C在第二段倒數(shù)第二句和第四段第一句提到，選項D則在第四段第二、三、四句提到，只有選項B全文均未提及。
2. C 第三段最后兩句說到，如果存在靶分子的話，量子點就會發(fā)光，以此辨認(rèn)疾病，這正是本題答案。
3. A 第四段全段都在講納米技術(shù)如何提高藥物療效，而中心就在于納米技術(shù)能使藥物對準(zhǔn)疾病病灶（文章中實際是舉已經(jīng)研發(fā)的治癌藥為例）從而提高藥物療效。
4. C 第五段第二句已經(jīng)說得很清楚，其中并沒有Iran。
5. D 第五段第三、四句說到，納米材料的顆粒在體內(nèi)和在體外環(huán)境中作用可能不太一樣，因此可能存在某種危險性。其實言外之意還存在未知數(shù)，所以后一句才說需要更多投入以便搞清它們的危險性。