Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked [A], [B], (C) and (D), and decide which is the best answer. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre. 【題組】18. (A)To protect her from getting scratches.
(B)To help relieve her of the pain.
(C) To prevent mosquito bites.
(D) To avoid getting sun burnt.
請依下文回答第 28 題至第 32 題
During the mid-1900s, scientists began to examine biological cycles in several different organisms. By the early
1960s, they showed that daily, or circadian, rhythms—“circa” meaning around and “dia” day—are generated
internally and synchronized to the 24-hour day. How are these cycles generated and altered?
In mammals, including humans, a biological clock resides in a region of the brain’s hypothalamus, a quarter-sized
structure that regulates hormone levels and plays a role in emotions. In some insects and snails the clocks are usually
located in the retina of the eye. In birds the clocks can also be found in a brain region called the pineal gland or in the
The clocks are almost always linked to some form of light-sensing cell called a photoreceptor. This type of cell
responds to sunlight in ways that help synchronize the clock with the 24-hour day.
Scientists have learned that exposure to light at certain times in the internal cycle can reset the clock in animals.
In mammals, light turns on important genes and affects sleep patterns, alertness, and body temperature. In nature, this
light sensitivity helps organisms synchronize their clock within the cycle of day and night.
Researchers have found that exposure to strong artificial light at certain times can reset the clock in ways that
relieve insomnia, jet lag, and mental disorders. Light at the wrong time of the internal cycle, however, might contribute
to or intensify these conditions. 【題組】28 According to the passage, in which of the following organs can a mosquito’s biological clock be found?
(A) Brain (B) Eye (C) Nose (D) Tongue
9. _______________ In this mosquito-infested country, an estimated 450,000 families live in
high-risk malaria prevalent areas. Luckily, there is a simple and cost effective way to
protect children from malaria. One insecticide treated bed net costs US$6 only and lasts up
to five years. Sleeping under it can reduce overall child mortality by 20 percent. The
public’s support for this United Nations International Children’s Emergency Fund
(UNICEF) project can save a lot of children’s lives.
(A) The United Nations International Children’s Emergency Fund is working with the
government of Myanmar to provide effective and affordable malaria prevention to families
with small children.
(B) Malaria is both preventable and treatable, and effective preventive measures as well as
curative tools have been developed by non-governmental organizations.
(C) To reduce vulnerability to malaria and to combat the spread of malaria, the United
Nations International Children’s Emergency Fund distributed insecticide treated bed nets
exclusively to Myanmar households.
(D) According to the United Nations International Children’s Emergency Fund, approximately
half of malaria deaths in the Southeast Asia region occur in Myanmar’s malaria prevalent