_______these people know how to solve this problem.

阅读理解：阅读下面的短文，根据文章内容从A、B、C三个选项中选出一个最佳选项。

Housing is the living places for human beings. As the population keeps climbing, People in the city have to face the reality that housing is in short supply. To solve this problem, New York city planners are challenging tradition and starting to design more “micro units.”

Micros, also known as “hostel-style” apartments, usually offer less than 200 square feet (18.5 square meters) in area. Could you imagine living in 150 square feet (14 square meters)? These units usually have only room for a bed, a table mini-fridge and the basic living essentials.

Why is the micro apartment so appealing? The reasons are rather straightforward. It is perfect for single people who don't have a lot of things. It can also meet the need of people who are short on cash but determined to live in their own places.

Micro apartments are very common in cities like Tokyo and Hong Kong, where there are so many people living. Now this tiny housing solution is gaining ground in urban areas in the U.S., and Canada.

The micro apartment is an experiment in simplicity in American culture. So small-scale home life is part of a hot trend in U.S. real estate. Some people are proud of it. Some of them can find the humor and fun in their small places. But not everyone is in favor of the trend.

1.According to the passage, the next big trend in U.S. real estate is {A、B、C}.

A. big house

B. micro apartment

C. traditional house

2.As the population keeps climbing, people in the city have to face the reality that {A、B、C}.

A. housing is in short supply

B. housing is very sufficient

C. housing is a luxury goods

3.Why is the micro apartment so appealing? {A、B、C}

A. It meets the need of someone.

B. It's very strange.

C. It's excellent.

4.Micro apartments are very common in some cities like {A、B、C}.

A. Beijing

B. London

C. Tokyo

5.How do people think of the micro apartment? {A、B、C}

A. Everyone likes it very much.

B. Some people think it's humorous and fun.

C. Not everyone is in favor of the trend.

听力原文：Who out there is sick and tired of sitting in morning traffic day after day? While the roads gat busier and busier, the city government seems determined not to do a thing to solve this problem. The only thing they seem capable of is building bigger and flashier offices for themselves. We need to let the people at City Hall know that we are not happy with them. On Saturday 5th January, I am asking the citizens of the city to march together to City Hall and let Mayor Brown know the traffic situation in the city is unacceptable. We are going to meet at Memorial Park and make our way to City Hall from there.

What is the reason for this radio announcement?

A．To provide travel alternatives

B．To organize a public demonstration

C．To inform. people of road closures

D．To build a new city hall

Children who have read "Max and Martha" picture books may know______.

A．how to deal with affairs at school

B．what to do if Max and Martha die

C．what to do when new babies are born into their families

D．how to solve the difficult problems in their writing classes

An adult giraffe's head is about six feet above its heart. This means that to pump enough blood up to the brain the circulatory system must be strong enough to keep the blood at very high pressure.

Biologists have known for some time that giraffes solve this problem by having unusually high blood pressure, about double that of human beings. But an international team of biologists began to wonder about this. If giraffes have such high blood pressure, they should have a terrible problem with swelling in their legs and feet. Why don't giraffes have swollen feet?

Giraffes should have another problem, too. Every time they bend heads down to drink, the blood should rush to their heads and have a hard time flowing back up (when the head is down)to the heart. How come giraffes don't black out when they drink?

The answer to the swollen feet problem, the researchers found, is that giraffes have what the researchers call a "natural anti-gravity suit". It turns out that the skin and other tissues in their legs and feet are much stiffer and tougher than those of other animals. As a result, the blood vessels in the leg cannot swell. Therefore, the blood has nowhere to go but back to the heart.

What about blood rushing to the head whenever the giraffe bends down to drink? The researchers found that the giraffe's jugular vein, which carries blood from the head back to the heart, has lots of one-way valves in it. In the giraffe's neck, there are lots of muscles that flex and relax repeatedly as the animal moves its head and sucks up drinking water. By squeezing the valved jugular vein, they keep blood moving back to the heart even while the animal is drinking.

Giraffes do not have swollen legs because______.

A．their legs and feet have strong skin and muscles

B．their blood vessels are stiff and tough legs

C．they wear a kind of special suit

D．there are lots of one-way valves in the veins of their legs

An adult giraffe's head is about six feet above its heart. This means that to 【C1】______ enough blood up to the brain the circulatory 【C2】______ must be strong enough to keep the blood at very high pressure.

Biologists have known for some time that giraffes solve this problem by having 【C3】______ high blood pressure, about 【C4】______ that of human beings. But an international team of biologists began to 【C5】______ about this. If giraffes have such high blood pressure, they should have a 【C6】______ problem with swelling in their legs and feet. Why don't giraffes have swollen feet?

Giraffes should have 【C7】______ problem, too. Every time they bend heads 【C8】______ to drink, the blood should 【C9】______ to their heads and have a hard time 【C10】______ back up (when the head is down) to the heart. How come giraffes don't black out when they drink?

The answer to the 【C11】______ feet problem, the researchers found, is that giraffes have 【C12】______ the researchers call a "natural anti-gravity suit". It 【C13】______ out that the skin and other 【C14】______ in their legs and feet are 【C15】______ stiffer and tougher than those of other 【C16】______ . As a result, the blood vessels in the leg cannot swell.

Therefore, the blood has nowhere to go but back to the heart. What about blood rushing to the head 【C17】______ the giraffe bends down to drink? The researchers found that the giraffe's jugular vein, which 【C18】______ blood from the head back to the heart, has lots of one-way valves in it. In the giraffe's neck, there are lots of muscles that flex and relax repeatedly as the animal moves its head and sucks 【C19】______ drinking water. By squeezing the valved jugular vein, they 【C20】______ blood moving back to the heart even while the animal is drinking.

【C1】

A．bring

B．produce

C．transfer

D．pump