一、根据句意、中文释义和首字母提示,写出句中所缺单词
1. I need to
2. Mike studied hard all year.
3. How many
4.
5. As we are family, we need to
1. I need to
store
(贮存) the important paper in a safe place before I leave.2. Mike studied hard all year.
Therefore
(因此), he did well in the exam.3. How many
tons
(吨) of food does a man eat in his lifetime on average?4.
Wetlands
can help stop flood because they are like natural sponges, taking in and keeping water during heavy rains.5. As we are family, we need to
support
each other.答案：【解析】：
本题要求根据句意、中文释义和首字母提示，写出句中所缺的单词，考查的是对词汇的理解和运用。
1. 第一空，根据中文释义“贮存”可知，需要填入的单词是表示“贮存”意思的动词，这里应填“store”。
2. 第二空，根据中文释义“因此”可知，需要填入的单词是表示因果关系的连词，这里应填“Therefore”。
3. 第三空，根据中文释义“吨”可知，需要填入的单词是表示重量单位“吨”的名词，由于前面有many修饰，所以要用复数形式，这里应填“tons”。
4. 第四空，根据首字母“W”和句意“能帮助阻止洪水，因为它们像天然海绵，在大雨时吸收并保存水分”可知，这里描述的是湿地（wetlands）的特性，所以应填“Wetlands”。
5. 第五空，根据首字母“s”和句意“作为一家人，我们需要相互_____”可知，这里需要填入一个表示人与人之间相互关系的动词，结合常识可知是“支持（support）”，所以应填“support”。
【答案】：
1. store；
2. Therefore；
3. tons；
4. Wetlands；
5. support。
本题要求根据句意、中文释义和首字母提示，写出句中所缺的单词，考查的是对词汇的理解和运用。
1. 第一空，根据中文释义“贮存”可知，需要填入的单词是表示“贮存”意思的动词，这里应填“store”。
2. 第二空，根据中文释义“因此”可知，需要填入的单词是表示因果关系的连词，这里应填“Therefore”。
3. 第三空，根据中文释义“吨”可知，需要填入的单词是表示重量单位“吨”的名词，由于前面有many修饰，所以要用复数形式，这里应填“tons”。
4. 第四空，根据首字母“W”和句意“能帮助阻止洪水，因为它们像天然海绵，在大雨时吸收并保存水分”可知，这里描述的是湿地（wetlands）的特性，所以应填“Wetlands”。
5. 第五空，根据首字母“s”和句意“作为一家人，我们需要相互_____”可知，这里需要填入一个表示人与人之间相互关系的动词，结合常识可知是“支持（support）”，所以应填“support”。
【答案】：
1. store；
2. Therefore；
3. tons；
4. Wetlands；
5. support。
An ecosystem is like a busy little city. It is a community of (1)
Some ecosystems are small. A small garden is one example. Other ecosystems can be huge. A whole rainforest is one big ecosystem. Rainforests are home to millions of species (物种), and they play an important role in balancing the earth's climate. (4)
But if we want to keep these ecosystems healthy, we need to (6)
living things
. An ecosystem (2)includes
many different plants and animals. The non-living things around are also part of it. Soil (土壤), rocks and water are important in ecosystems. In a (3)healthy
ecosystem, all the parts work together. The plants and animals depend on each other to survive. For example, plants provide food and home for animals, while animals help spread seeds.Some ecosystems are small. A small garden is one example. Other ecosystems can be huge. A whole rainforest is one big ecosystem. Rainforests are home to millions of species (物种), and they play an important role in balancing the earth's climate. (4)
Sadly
, many ecosystems are in danger because of human activities like pollution and over-farming. These problems can (5)harm
plants and animals, making it harder for them to survive.But if we want to keep these ecosystems healthy, we need to (6)
take action
. We must protect the environment so that all living things can go on living and growing. By working together, we can make a big difference and help protect our planet for the future.答案：(1) living things
(2) includes
(3) healthy
(4) Sadly
(5) harm
(6) take action
(2) includes
(3) healthy
(4) Sadly
(5) harm
(6) take action
1. The ocean covers
2. Do you know that
3.
4. It's
the largest area of the earth's surface
.2. Do you know that
some plants in the ocean produce oxygen for the animals living there
?3.
Unfortunately, we are facing a serious problem: ocean pollution.
4. It's
time for us to take action to protect the ocean
.答案：
1. the largest area of the earth's surface
2. some plants in the ocean produce oxygen for the animals living there
3. Unfortunately, we are facing a serious problem: ocean pollution.
4. time for us to take action to protect the ocean