Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word for each of the blanks.
Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes (29) _________ ecosystems. If there is too (30) _________ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that feed on it may also die or move away. Some changes are good for ecosystems. Some pine forests need fires for the pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets the seeds (31) _________. Polluting the air, soil, and water can harm ecosysterms. Building (32)_________ on rivers for electric power and irrigation can harm ecosystems around the rivers. Bulldozing wetlands and cutting down forests destroy ecosystems. Ecologists are working with companies and governments to find better ways of (33) _________ fish, cutting down trees, and building dams. They are looking for ways to get food, lumber, and other products for people without causing harm to ecosystems.
(33) _________
A.catching     
B.holding 
C.carrying   
D.taking

Các câu hỏi liên quan

Fill in each numbered blank with one suitable word or phrase.
What do you do well? What do you enjoy doing? Your answers to these two questions will help you identify your strength. An employer will consider you seriously for a (41) _____ when you can show them that you know who you are, what you can offer and which you have studied. Sometimes it is difficult to know what your weaknesses are. Clearly not everyone is equally good at everything. You may need to improve yourself and so (42) _____ courses in that field could turn a weakness into strength.
You will need to spend some time on your self-assessment. Your honesty and the desire for self-improvement will lead to (43) _____ in getting the right job. Explore the following seven areas to start to get to know yourself: your aptitude, your skills, your personality, the level of responsibility you feel comfortable with, your interests and your needs.
Ask yourself if you have any special talents and if you need to consider your physical health when choosing a job. Be as honest and realistic as you can, and ask for other people's (44) _____ if necessary. Make a list of these things. It is usually a good idea to talk about your aptitudes with teachers, family and friends;
If you are considering a career that (45) _____ a special talent, such as art, acrobatics, mathematics or music, discuss your aptitudes with an expert in that area and discover how they fit the needs of the occupation.
(42) _____
A.meeting 
B.taking    
C.choosing  
D.interviewing

Read the passage carefully and choose the correct answer.
These following tips may help you make a good impression on your job interviewer during the interview:
Before entering enquire by saying, "May I come in sir/madam?".
If the door was closed before you entered, make sure you shut the door behind you softly.
Look at the interviewer and confidently say 'Good day sir/madam'.
If the interviewer wants to shake hands, then offer a firm grip first maintaining eye contact and a smile.
Seek permission to sit down. If the interviewer is standing, wait for them to sit down first before you take your seat.
An alert interviewee would diffuse the tense situation with light-hearted humor and immediately set rapport with the interviewer.
The interviewer normally pays more attention if you display an enthusiasm in whatever you say. This enthusiasm comes across in the energetic way you put forward your ideas.
You should maintain a cheerful disposition throughout the interview.
A little humor or wit thrown in the discussion occasionally enables the interviewer to look at the pleasant side of your personality.
You must maintain eye contact with the interviewer. This shows your self-confidence and honesty. Many interviewees while answering questions, tend to look away. This conveys you are concealing your own anxiety, fear and lack of confidence. Maintaining an eye contact is a difficult process. As the circumstances in an interview are different, the value of eye contact is tremendous in making a personal impact.
Interviewers appreciate a natural person rather than an actor. It is best for you to talk in natural manner because then you appear genuine.
During your job interview, you should communicate _______ with the interview.
A.naturally
B.dramatically    
C.anxiously  
D.dishonestly