Part II Reading Comprehension (35 minutes)Section A Directions: In this part there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. You may not use any of the words in the bank more than once.注意：请在答题处填入相应的大写字母!Questions 21 to 31 are based on the following passage.What determines the kind of person you are? What factors make you more or less bold, intelligent, or able to read a map? All of these are influenced by the interaction of your genes and the environment in which you were 21 . The study of how genes and environment interact to influence 22 activity is known as behavioral genetics. Behavioral genetics has made important 23 to the biological revolution, providing information about the extent to which biology influences mind, brain and behavior.Any research that suggests that 24 to perform certain behaviors are based in biology is controversial. Who wants to be told that there are limitations to what you can 25 based on something that is beyond your control, such as your genes? It is easy to accept that genes control physical characteristics such as sex, race and eye color. But can genes also determine whether people will get divorced, how 26 they are, or what career they are likely to choose? A concern of psychological scientists is the 27 to which all of these characteristics are influenced by nature and nurture(养育), by genetic makeup and the environment. Increasingly, science 28 that genes lay the groundwork for many human traits. From this perspective, people are born 29 like undeveloped photographs: The image is already captured, but the way it 30 appears can vary based on the development process. However, the basic picture is there from the beginning.[A] abilities [B] achieve [C] appeal[D] complaints [E] contributions [F] displayed[G] essentially [H] eventually [I] extent [J] indicates [K] proceeds [L] psychological[M] raised [N] smart [O] standard21. _________