Dengue Transmission in the United States Is Increasingly Local

Study the questions and tasks

Work through the material below, or start the interactive practice above to complete an attempt. Try the exercises before opening any answer or transcript sections, then use them to review your work.

Practice level

C1. Try this level if you can follow the instructions and understand most of the language; choose an earlier level if you need more support.

Question formats

Single choice

How to approach this practice

Use the surrounding sentence to identify the meaning and word form needed. Check which words naturally go together.

1. Question 1 · Single choice

   Choose one answer.

   In the article, what does “international” mean?

   1. Involving or relating to more than one nation.
   2. Occurring within one city or district.
   3. Belonging to a remote historical period.
   4. Limited to official government departments.
   Check answers and explanations

   Answer

   Involving or relating to more than one nation.

   The word describes travel involving more than one nation.

2. Question 2 · Single choice

   Choose one answer.

   In context, what does “generally” indicate?

   1. In most cases or as a usual pattern.
   2. With complete certainty and no exceptions.
   3. Only after a specific delay.
   4. In a deliberately formal manner.
   Check answers and explanations

   Answer

   In most cases or as a usual pattern.

   It presents the past pattern as usual, not universal.

3. Question 3 · Single choice

   Choose one answer.

   What does “exposure” mean in the article?

   1. Contact with something that may cause harm or have an effect.
   2. A numerical estimate of a changing pattern.
   3. A lasting presence in a particular place.
   4. A formal account of a disease’s spread.
   Check answers and explanations

   Answer

   Contact with something that may cause harm or have an effect.

   Here, exposure means contact with a potential source of infection.

4. Question 4 · Single choice

   Choose one answer.

   What does “enduring” mean in context?

   1. Continuing for a long time; lasting.
   2. Occurring only during a short journey.
   3. Increasing at a measurable rate.
   4. Difficult to distinguish from another pattern.
   Check answers and explanations

   Answer

   Continuing for a long time; lasting.

   It describes a presence that may last over time.

5. Question 5 · Single choice

   Choose one answer.

   What does “epidemiological” describe?

   1. Relating to the patterns, causes, and spread of disease in populations.
   2. Relating to treatment of one individual’s symptoms.
   3. Relating to international borders and travel regulations.
   4. Relating to the measurement of mosquito size.
   Check answers and explanations

   Answer

   Relating to the patterns, causes, and spread of disease in populations.

   The term concerns disease patterns and spread in populations.

6. Question 6 · Single choice

   Choose one answer.

   What does “quantify” mean?

   1. To measure or express something as a numerical amount.
   2. To distinguish one concept from another.
   3. To make a pattern persist over time.
   4. To attribute an infection to travel.
   Check answers and explanations

   Answer

   To measure or express something as a numerical amount.

   To quantify something is to express its amount numerically.

7. Question 7 · Single choice

   Choose one answer.

   What does “dominance” mean in the final paragraph?

   1. The state of being the most important, powerful, or influential.
   2. The condition of appearing only occasionally.
   3. The process of acquiring infection during travel.
   4. The act of estimating a change numerically.
   Check answers and explanations

   Answer

   The state of being the most important, powerful, or influential.

   It refers to the leading role local mosquitoes now play.

What to review next

Keep a short list of unfamiliar words with their meanings and example sentences. Practise recalling them later, then use them in a sentence of your own.

A focused practice result shows how you did on these tasks. Use several activities across skills to decide what to study next; one practice score does not certify an overall CEFR level.

Before you practise: a worked example

Read the whole sentence before choosing a word. Check both its meaning and the words it naturally combines with.

Please make an appointment before visiting the clinic.

Make an appointment is a natural word combination. Knowing a dictionary meaning alone may not tell you which verb fits.

This teaching example is separate from the scored questions. After your test, compare any mistakes with the explanation and revisit the topic before trying again.