Passage Reference: Christopher Robin wanted Father Christmas to bring him 'a big red India rubber ball'; others have a less innocent enthusiasm for the sap of Hevea brasiliensis the rubber tree. But though latex rubber is useful for many purposes, it also carries risks. Some people are highly sensitive to the stuff - so much so that they can die from being exposed to it.

Tips: For the first paragraph, expect a general introduction, not a very specific topic.

Why the other options are wrong:

• Latex can kill: This focuses only on death, but the paragraph also talks about usefulness. That is a partial truth trap.
• The usefulness of latex: Latex is mentioned as useful, but the paragraph is really about the risk, not just usefulness. This is an example-as-main-idea trap.

Key Vocabulary:

• sap = liquid from a tree
• sensitive = easily affected

Question Focus: Main idea - growing awareness and official attention

Passage Reference: . Nobody knows which or how many of the hundreds of proteins in latex provoke the allergic reactions that natural rubber causes in 1 % of people. But whatever its cause, latex sensitivity is beginning to attract attention. Last week America's Food and Drug Administration (FDA) joined forces with the Centres for Disease Control and the National Institutes of Health to sponsor an international conference in Baltimore on latex sensitivity. Almost 400 scientists, nurses, doctors and dentists, along with representatives of the rubber industry, turned up. The medical professions use latex a lot; they are well placed to notice adverse reactions and to deal with them.

Why this is correct: The paragraph focuses on how latex sensitivity is now getting attention, especially from major medical organizations. The conference is clear proof of this growing concern.

Tips: Look for phrases like 'attract attention' or 'new concern' to spot awareness headings.

Why the other options are wrong:

• It's both a medical and an industrial problem: Industry is mentioned, but the focus is on attention and awareness, not shared responsibility. This is a context shift trap.
• Doctors suffer too: Doctors are mentioned, but only as observers, not sufferers. This is a wrong focus trap.

Key Vocabulary:

• provoke = cause
• adverse = harmful

Question Focus: Main idea - fatal consequences of latex exposure

Passage Reference: C. Consider as an example the latex cuff used when the bowel is filled with barium and examined with X-rays - a common procedure. That these barium enemas can cause anaphylactic shock, a life-threatening allergic reaction, has been known for decades. What is new is the discovery that the cuff of the enema nozzle can produce this reaction on its own. Of 407 such cases of shock reported to the FDA in the past four years, 15 have been fatal.

Why this is correct: This paragraph gives a clear example where latex exposure leads to fatal allergic shock. Death is the strongest and most repeated idea here.

Tips: Numbers and death statistics often signal a strong, direct heading.

Why the other options are wrong:

• Children with spina bifida: Children are not mentioned here at all. This is a wrong section trap.
• Doctors suffer too: Health workers are not discussed in this paragraph. This is another wrong section trap.

Key Vocabulary:

• fatal = causing death
• anaphylactic shock = severe allergic reaction

Question Focus: Main idea - high-risk group due to repeated exposure

Passage Reference: D. Other patients at risk include children with spina bifida, a defect of the spine; these children usually cannot urinate without a catheter, and can face as many as 20 corrective operations before reaching adulthood, so they come into contact with all sorts of medical apparatus that contain latex. And for people predisposed to latex sensitivity, the more frequent and prolonged their exposure, the worse the reaction can become. These days, staff caring for children with spina bifida are aware of the potential for trouble; so precautions are taken to prevent their becoming sensitive to latex and to protect them if sensitized already. Most of the children are operated on in theatres that have been made as latex-free as possible, and none has been lost to shock.

Why this is correct: The paragraph is completely centered on children with spina bifida and why they are especially at risk. All details support this group as the main focus.

Tips: When one group is named repeatedly, the heading usually names that group.

Why the other options are wrong:

• The age factor and allergic reaction: Age is not compared or analyzed. The focus is a medical condition, not age. This is a paraphrase trap.
• Latex can kill: Although danger is mentioned, the paragraph stresses prevention and protection, not death. This is a partial truth trap.

Key Vocabulary:

• predisposed = more likely
• precautions = safety steps

Question Focus: Main idea - health workers affected by latex sensitivity

Passage Reference: E. The danger affects health workers as well as patients. People who need to wear rubber gloves at work are the largest single group at risk, and the AIDS epidemic has greatly increased their number. Doctors, nurses, dental hygienists and laboratory technicians who used to wear gloves only occasionally now find themselves changing them as often as 30 times a day. And the cornstarch with which the gloves are often dusted spreads small amounts of latex all around the place. Some studies have found that as many as 10% of health workers have developed latex-related skin conditions or other allergic reactions. Should they then need an operation, or other medical procedure, entailing exposures to latex, they may run into further complications. Indeed, some sufferers have been so incapacitated by the problem that they have had to change jobs.

Why this is correct: This paragraph explains how doctors and other health workers develop latex problems through frequent glove use. The heading matches the main idea exactly.

Tips: If a paragraph talks about jobs and work conditions, check headings about professions.

Why the other options are wrong:

• It could be a nuisance to many people: The problem here is serious and career-changing, not just a nuisance. This is a tone mismatch trap.
• Latex sensitivity and contraceptives: Contraceptives are not mentioned. This is a wrong section trap.

Key Vocabulary:

• incapacitated = unable to work normally
• complications = additional problems

Question Focus: Main idea - mild reactions among everyday users

Passage Reference: . F. Of course, other people use latex, too. The sensitivity was first noticed in someone using household rubber gloves. It can also afflict the users of condoms or diaphragms. No deaths have been reported in these groups, though, and levels of reaction are quite low.

Why this is correct: The paragraph shows that for most everyday users, latex sensitivity is mild and not deadly. This fits the idea of a nuisance rather than a major danger.

Tips: Watch for phrases like 'no deaths' or 'quite low' to judge severity.

Why the other options are wrong:

• Latex sensitivity and contraceptives: Contraceptives are only one small example, not the main idea. This is an example-as-main-idea trap.
• Latex can kill: The paragraph clearly says no deaths. This is a contradiction trap.

Key Vocabulary:

• afflict = affect
• remedy = treatment

Question Focus: Main idea - future solutions and alternatives

Passage Reference: n. G. Despite the worries, latex is such an exceptional material - nothing else so cheap is such a good, long-lasting barrier, while at the same time allowing tactile sensitivity - that there is no talk of getting rid of it. A better solution is to label products carefully and to screen people for sensitivity. In the longer term, refinements in manufacturing might make the substance less allergenic. Or people could use a different rubber; latex produced from guayule, a shrub which grows exuberantly in America's south-west, shows signs of having fewer al

Why this is correct: This paragraph looks forward and discusses future solutions, such as better labeling and alternative materials. That clearly matches the idea of the future of latex.

Tips: Future-focused headings often match paragraphs with suggestions or long-term plans.

Why the other options are wrong:

• The usefulness of latex: Usefulness is mentioned, but only as background. The main focus is what happens next. This is a context shift trap.
• It's both a medical and an industrial problem: Both are implied, but the paragraph is about solutions, not responsibility. This is a partial truth trap.

Key Vocabulary:

• allergenic = causing allergy
• refinements = improvements

General Tips:

• Read all headings first and underline key words before matching.
• Focus on the main idea of the paragraph, not one example.
• Headings follow paragraph order from top to bottom.
• If two headings seem possible, choose the broader one.