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(xiàng)A在第一段第三句提到，選項(xiàng)C在第二段倒數(shù)第二句和第四段第一句提到，選項(xiàng)D則在第四段第二、三、四句提到，只有選項(xiàng)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(diǎn)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(shí)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(xiǎn)性。其實(shí)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(xiǎn)性。
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(xiàng)A在第一段第三句提到，選項(xiàng)C在第二段倒數(shù)第二句和第四段第一句提到，選項(xiàng)D則在第四段第二、三、四句提到，只有選項(xiàng)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(diǎn)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(shí)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(xiǎn)性。其實(shí)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(xiǎn)性。